Sound Devices 442 manual

442

Field Mixer

User Guide and Technical Information for 442 and 442 Nordic Field Mixers

Sound Devices, LLC

300 Wengel Drive

Reedsburg, WI 53959 USA

Voice +1 (608) 524-0625

Fax +1 (608) 524-0655 www.sounddevices.com

©2003–2008 Sound Devices, LLC

backside - front cover

Table of Contents

Quick Start Guide . . . . . . . . . . . . . . . . .3

Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Input Channel Setup . . . . . . . . . . . . . . . . . . . . . . . . . 3

Output Connection . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Headphone Monitoring . . . . . . . . . . . . . . . . . . . . . . . 3

Metering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Limiting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Front Panel Descriptions . . . . . . . . . . .4

Input Panel Descriptions . . . . . . . . . . .5

Output Panel Descriptions . . . . . . . . . .6

Input Channels . . . . . . . . . . . . . . . . . . .7

Mic/Line Level Selection . . . . . . . . . . . . . . . . . . . . . . 7

Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Faders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Microphone Powering. . . . . . . . . . . . . . . . . . . . . . . . . 7

High-Pass Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Pan Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Channel Limiters . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Peak LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Polarity Reversal - Channel 2 . . . . . . . . . . . . . . . . . . 9

Stereo Link ON - Channels 1 and 2 . . . . . . . . . . . . . . 9

Stereo Link MS - Channels 1 and 2 . . . . . . . . . . . . . 9

PFL (Channel Solo Monitoring) . . . . . . . . . . . . . . . . . 9

Master Gain Control . . . . . . . . . . . . . . . . . . . . . . . . . 9

Master Outputs - XLR and Hirose Multi-Pin . . . . . . . 10

Secondary Balanced Outputs . . . . . . . . . . . . . . . . . . 10

Tape Outputs (Mix Output) . . . . . . . . . . . . . . . . . . . . 10

Mono Mic Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Output Limiter . . . . . . . . . . . . . . . . . . . .10

LINK vs ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Mix Input (linking mixers) . . . . . . . . . . .11

Metering . . . . . . . . . . . . . . . . . . . . . . . . .11

Meter Ballistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Ballistics Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Headphone Peak LED . . . . . . . . . . . . . . . . . . . . . . . 12

Headphone Monitoring . . . . . . . . . . . . .12

Headphone Source Selection . . . . . . . . . . . . . . . . . . 12

Headphone Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Return A and B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Powering . . . . . . . . . . . . . . . . . . . . . . . . .13

Internal Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

External Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Power Metering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Power Consumption . . . . . . . . . . . . . . . . . . . . . . . . . 13

Tone Oscillator / Slate Microphone . . .14

Tone Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Slate Microphone . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Accessing the Setup Menu . . . . . . . . . .15

Enter the Setup Menu . . . . . . . . . . . . . . . . . . . . . . . . 15

User Default . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

442 Nordic Information . . . . . . . . . . . . .16

Setup Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Setup Menu Firmware v 5 . . . . . . . . . . .17

Setup Menu Firmware v 3 & 4 . . . . . . . .18

Setup Menu Firmware v 2, (442 only) . .19

Specifi cations . . . . . . . . . . . . . . . . . . . .20

Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Block Diagram - Inputs and Outputs . .23

Block Diagram - Monitoring . . . . . . . . .24

Accessories . . . . . . . . . . . . . . . . . . . . .25

CE Declaration of Conformity . . . . . . .26

Warranty and Technical Support . . . . .27

FCC Statement . . . . . . . . . . . . . . . . . . .27

1

442/442N User Guide and Technical Information

Welcome

D eveloped with input from the industry’s top audio engineers, the 442 Field Mixer encompasses the audio performance, feature set, and mechanical construction demanded by those who rely on audio gear for their livelihood. The 442 contains four high-performance microphone preamplifi ers, many outputs, and fl exible monitoring. Its inputs and outputs, including direct outputs per channel, make the 442 at home in small “runand-gun” applications as well as large, multiple input productions.

The 442 incorporates a complete feature-set into a compact, functional design. All controls are accessible on its three main surfaces; no hidden controls. The high-effi ciency circuitry allows the mixer to run from either four internal AA batteries or external 5-18 VDC.

The 442, like all Sound Devices professional audio products, is designed to withstand the physical and environmental extremes of fi eld production. Its compact mechanic construction strikes the perfect balance between access to all functions, uncluttered design, and durability.

2 v. 5.06 Features and specifications are subject to change. Visit www.sounddevices.com for the latest documentation.

Quick Start Guide

For those familiar with fi eld mixers or mixing consoles, this "Quick Start Guide" highlights basic functionality to begin operating the 442.

Powering

1. Insert four AA batteries into the battery compartment. Insert with the positive (+) side fi rst.

2. Or, connect external DC power (5–18 VDC) to the unit's DC connector.

3. Slide the power switch to the intended power source.

4. View battery level by depressing the battery check button.

Input Channel Setup

1. Connect a signal source (microphone or line level signal) to a channel input connector.

2. Select the input type - MIC or LINE level.

3. Activate Phantom or T-powering, if required by the microphone.

4. Set the Channel Fader to the 0 (unity) position.

5. Adjust the Channel Pan for the appropriate position.

6. Adjust the High-Pass fi lter as needed.

7. Place the Master Gain control to the 0 (unity) position.

8. Adjust the Channel Gain/trim control for the required level.

9. Verify that there is signal present on the output meter.

Output Connection

1. Connect to the XLR output of the 442.

2. Select the output type - MIC, -10, or LINE level.

3. Verify that the destination input is receiving signal.

Headphone Monitoring

1. Connect headphones to the headphone connector on the output panel.

2. Select the ST position on the headphone selection switch to listen to stereo mixer program.

3. Monitor audio in the headphones.

Metering

1. View the master output level on the LED output meter.

2. Toggle between VU, PPM (Peak), or combined VU/PPM metering with the PK/VU button.

3. Adjust the meter brightness among its intensities with the meter brightness button.

Limiting

1. Activate the input and output limiters by engaging the front panel switch - either stereo linked or dual mono.

2. Note limiting activity via the limiter LEDs and the output level.

3. Adjust the output limiter threshold and input limiter availability in the Setup Menu (see Appendix).

3

442/442N User Guide and Technical Information

Front Panel Descriptions

2 3 4 5 6 7 9 10 13 18

19 22

1

8

11 12 14 15 16

17 20

21

Controls the gain of the microphone preamp.

Range is from +22 dB to +60 dB to accomodate different input sources. Can be thought of as a

"coarse" gain adjustment.

10. Slate Mic / Tone Oscillator

Activates the slate microphone in the left position

(momentary) and activates the tone oscillator in the right position (latched).

Controls a channel's gain. Ranges from 'off' to

+15 dB. Nominal setting is in the middle (0 dB).

Can be thought of as a "fine" gain adjustment.

Controls the Left/Right balance of the input signal to the outputs. Signal is 3 dB greater than center position when panned hard right or left.

Activates both input and output limiters. Input limiters can be defeated in the Setup Menu. ON = output limiters are not linked to each other. LINK

= output limiters are linked to each other for stereo outputs.

Controls overall level of signals to both left and right outputs.

4

5.

Indicates that channels 1 and 2 are linked as a stereo pair, set via the Link Switch on the input panel.

Channel 2 Polarity Reverse

Reverses the polarity of input channel 2.

Sends the channel signal to the headphones for troubleshooting and gain set-up. Does not affect master output signal at all.

Indicates that the input signal is 3 dB from clipping. Indicates that Gain is set too high if LED comes on.

Adjusts corner (-3 dB) frequency of high-pass filter. Fully counter-clockwise (detented) removes the high-pass filter. Range is 80 Hz to 240 Hz,

12dB/oct to 6 dB/oct.

9. Input Limiter LED

Illuminates orange in proportion to the amount of input limiting. Indicates that Gain Trim is set too high if significant limiting is occurring.

Adjusts the overall mixer LED brightness level among four intensities (or meter off).

14. Meter Ballistics Selection

Selects among output meter ballistics—VU, PPM

(Peak), combined VU/PPM, or VU-PPMHold (see

Metering). Hold down while powering to access the Setup Menu.

15. Monitor Selection Switch

Sets the signal source sent to headphones.

Options include: input PFL 1, 2, 3; left output bus; right output bus; Mono (summed left and right);

STereo master; RTN - stereo monitor return;

MS-mono; MS-stereo; RTN-MS.

Views the battery level on the output meter. Left meter indicates internal battery level, right meter indicates external battery level. See POWERING.

Adjusts the overall headphone gain. v. 5.06 Features and specifications are subject to change. Visit www.sounddevices.com for the latest documentation.

40 segment output meter. Markings indicate output level (at line-level) in dBu for Peak setting. For

VU setting, markings indicate Volume Units. See

APPENDIX A for 442N scale.

21. Output Limiter LEDs

Illuminates orange in proportion to the amount of output limiting. Indicates that Master or Faders are set too high if significant limiting is occuring.

Selects internal or external power source for the mixer. Illuminates when unit is powered. Flashes when power supply is low. With external DC supply the

LED flashes at select voltage. See POWERING.

20. Monitor Return A|B

Allows for quick selection of return audio signals to be sent to the headphones. Function can be modified in the Setup Menu.

Input Panel Descriptions

23 26

24 25 27 28 29

Transformer-balanced channel inputs. Can be unbalanced by grounding pin-3 to pin-1 of the

XLR connector. Pin-1 = Ground; pin-2 = 'Hot'; pin-

3 = 'Cold'.

24. Mic/Line Channel Switch

Selects the input level of its associated input connector.

Selects either 48 V or 12 V phantom voltage for the input channels.

28. 1 + 2 LINK

Groups channels 1 and 2 as a stereo pair. ON selects a L/R stereo pair, MS selects a Mid-Side stereo pair. See Stereo Link for more information.

29. RTN A and RTN B Level

Adjusts the input sensitivity for the Return A and

Return B signals. Useful for balancing levels when toggling between program and return audio.

Selects the microphone powering type of the associated channel. NOTE: Use T-Powering ony

for T-Powered microphones.

26. TA3-type Channel Direct Outputs

Balanced, line level channel output. Signal is pre-fader, post-trim, post-input-limiter, post highpass. Selectable line- or mic-level output via

Setup Menu. Pin-1 = Ground; pin-2 = 'Hot'; pin-3

= 'Cold'. Can be used unbalanced with pin-2 and ground.

5

442/442N User Guide and Technical Information

Output Panel Descriptions

35 33

36

39

30 40

38 37 34 31 32 31 41**

30. XLR Master Outputs

Transformer-balanced ouputs. Pin-1 = Ground; pin-2 = 'Hot'; pin 3 = 'Cold'. Can be unbalanced by grounding pin-3 to pin-1 of the XLR connector.

31. XLR Output Level

Sets the nominal output level for the XLR Master

Outputs to Mic, Tape (-10), or Line levels.

32. TA3-type Master Outputs

Selectable Line (factory default) or Mic level output set in Setup Menu. Pin-1 = Ground, pin-2 =

'Hot', pin-3 = 'Cold'. Can be used unbalanced with pin-2 and ground.

33. Hirose Multi-Pin Output (Return A)

Multi-pin connector includes second master output (on separate winding from XLR outputs). Also includes unbalanced stereo Return A. (See block diagram for pin out.)

34. Hirose Multi-Pin Hirose Output Level

Selects output level for the Hirose Multi-Pin

Output to Mic, Tape, or Line Level.

35. Tape Output(s) / Mix Out

Unbalanced stereo outputs on 3.5 mm and TA3type connectors. For TA3, pin-1 = Ground, pin-2 =

Left, pin-3 = Right. For 1/8", sleeve = Ground, tip

= Left, ring = Right. Also used to link to the Mix In to add inputs to a 442.

36. Mono Mic Out

1/8-inch, mono, mic level connection designed to connect to wireless IFB transmitters or transcription recorders. Unbalanced. Tip = Hot, sleeve =

Ground.

37. Return B Input

Unbalanced stereo TA3-type or 3.5 mm input connectors for Return B audio. TA3: Pin-1 = Ground, pin-2 = Left, pin-3 = Right. 1/8": Sleeve = Ground, tip = Left, ring = Right.

1/4-inch and 3.5 mm stereo connectors can drive headphones from 8 to 2000 ohm impedances to required monitoring levels.

An input to the master bus designed exclusively to link another 442, MixPre, or MP-2 to the 442 for additional inputs. Pin-2 = Left, pin-3 = Right, pin-1 = Ground. Shell of TA3 connector must be grounded to pin-1 to open connection.

Holds four AA batteries required for internal powering. Accepts alkaline and lithium cells or NiHM rechargeable cells.

Accepts DC voltages from 5–18 V for mixer powering. Four-pin Hirose connector is wired pin-4 positive (+), pin-1 negative (–). Ext DC is completely isolated (floating) from the rest of the circuitry.

** Note

Early versions (s/n < 0303) of the 442 use a coaxial DC power connector with tip (+) and sleeve (–).

6 v. 5.06 Features and specifications are subject to change. Visit www.sounddevices.com for the latest documentation.

Input Channels

The inputs of the 442 consist of four, full-featured microphone preamplifi ers. Each channel has a wide gain range to accommodate nearly all signal types. The 442 accepts signals ranging from low-sensitivity ribbon and dynamic microphones to medium level wireless and condenser mic outputs up to "hot" line levels.

442 input channels are transformer-balanced. The isolation characteristics of transformers are superior to other balancing techniques for the hostile and uncontrolled environments of fi eld production. Transformers provide galvanic isolation from the driving source, meaning there is no direct electrical connection. Signals are "transformed" magnetically. The input transformers in the 442 use premium magnetic core material to achieve high signal handling capability (especially at low frequencies) while keeping distortion to a minimum. Because of their inherently high common mode impedance, transformers are unrivaled by any other type of input for common-mode noise rejection.

The inputs of the 442 can be used as either balanced or unbalanced connections. When unbalancing, ground pin-3 to pin-1. There is no change in gain between unbalanced and balanced connections into the 442.

Mic/Line Level Selection

The Mic/Line switch is used to select the input level for the channel. Taking into account all available gain stages, the 442 has up to 84 dB of available gain from mic input to line output. When in the LINE position, the input channel sensitivity is reduced by 40 dB.

Gain

Like traditional mixing consoles, the 442's microphone preamp gains are set via the Gain control. The Gain, or trim, adjusts the input sensitivity of the channel input so that the channel fader can be set to operate in a usable range. Once set, the Gain is typically kept at the set level and all mixing is done on the Channel Fader.

The Gain adjustment features a pop-up knob so that it can be adjusted easily and then hidden from the mixing surface.

Faders

While both the Gain and the Fader control the gain of a given channel, the Fader is the primary channel level control. The Gain can be thought of as a "coarse" gain adjustment to be adjusted during setup, and the Fader is a "fi ne" gain adjustment to be adjusted while recording. With a properly set up Gain, the Fader can be set to a nominal 0 (unity) level. With the Fader at unity, the dynamic range of the mixer is maximized. There is a wide range of gain control for the input, allowing for smooth gain changes with adequate control of attenuation and gain.

Microphone Powering

Condenser microphones require power for various parts of their operation. The 442 can provide phantom or Tpower to each input and is selected per input. The 442 can provide up to 10 mA to each input at 48 V, suffi cient for the most power-hungry condenser microphones. When acceptable, use 12 V phantom to extend battery runtime. The 12 V/48 V phantom voltage switch is located on the input panel.

Phantom Power

Phantom powering is a method of providing power to microphones by applying a voltage to the microphone using the same wires that carry the audio signal. Phantom power is produced by the 442 for microphones that require power. Phantom powering utilizes a fi xed DC voltage between 12 and 48 volts. This voltage is resistively applied to pin-2 and pin-3 of an XLR connector relative to pin-1 (there is no voltage difference between the signal pins -2 and -3—a dynamic mic can operate just fi ne in the presence of phantom powering.)

Many phantom-powered mics will operate at 12 V with no difference in performance as compared to operating off of 48 V. As the mics draw the same current no matter what the phantom voltage, operating at 48 V consumes four times the power as 12 V with no performance gain! This excess power draw can make a signifi cant difference in battery life and is the reason that the 442 allows the user to select phantom voltage.

7

442/442N User Guide and Technical Information

8

It is generally good practice to turn off phantom powering when not using microphones that require it. Phantom can capacitively couple noise into the mic inputs with poor mic cables. Also, be certain to turn off mic powering when using ribbon microphones since an improperly wired cable can permanently damage the microphone.

Dynamic

The DYN (dynamic) position applies no voltage to the microphone input.

T Power

T-Powering is a microphone powering scheme used by several European condenser microphone manufacturers.

Today, T-powered microphones are not as common as phantom microphones, but many are still in regular use.

T-power resistively applies 12 V between the signal pins -2 and able T-power for each input. The 442 provides positive T-power, where pin-2 on the XLR-3 connector has +12 volts relative to pin-3. When using "red dot"

T-powered microphones (reverse polarity T-power) use a polarity-reversing adapter on the input, otherwise damage to the microphone may occur.

Phantom and T-powering are not interchangeable. Use T-powering only for T-powered microphones.

High-Pass Filters

Each channel of the 442 has an adjustable high-pass fi lter. High-pass (or low-cut / low roll-off) fi lters are useful for removing excess low frequency energy in audio signals. Wind noise is a common unwanted low frequency signal and a high-pass fi lter is effective for reducing wind noise. For most audio applications engaging the highpass fi lter is benefi cial, since little useable audio information exists below 100 Hz, especially for speech reproduction.

The 442's high-pass circuit features an adjustable corner (–3 dB) frequency over a range from 80 Hz to 240 Hz.

Below 80 Hz, the fi lter's slope is 12 dB/octave. At higher corner frequency settings, the slope is 6 dB/octave, and then below 80 Hz, it increases to 12 dB/octave (

See Specifi cations

). The purpose for this compound slope is to give additional roll-off at the 80 Hz setting to reduce wind noise and rumble. The higher settings can be used to counteract proximity effect of directional mics where a more gentle slope is desirable. The 442's high-pass circuit is unique because of its placement before any electronic amplifi cation. Most mixer's high-pass circuits are placed after the mic preamp, where all of the high-energy low-frequency signals get amplifi ed. By virtue of the 442's circuit cutting the low-frequency signals before amplifying, higher headroom is achieved in presence of signals with a lot of low-frequency energy.

Where possible, attempt to equalize at the sound source with microphone selection, use of windscreens, microphone placement, and onboard microphone fi ltering. Many microphones have on-board high pass fi lters, and the high-pass fi lters on the 442 can be used in conjunction with the microphone's fi lters to increase the fi lter's slope.

The fi lter can be removed from the circuit completely by moving the high-pass control fully counterclockwise.

The high-pass features a pop-up knob so that it can be adjusted easily and then hidden from the mixing surface.

Pan Controls

The pan control routes an input channel signal anywhere between the Left and Right output. The 442 uses constant loudness pan controls, meaning that the signal is 3 dB louder at the full-right or full-left position relative to the center position. For most applications the channel will be panned either full left, full right, or to the center; the 442 features excellent "off-attenuation" of the channels in the hard- left and right positions. The pan pot has a detent in the center position, and is calibrated at Sound Devices for a maximum difference of +/- 0.1 dB between the left and right output in this position. Since pan is not often used after channel setup, the pan pot is on a popup knob so it can be hidden from the mixing surface during normal operation.

Channel Limiters

The channel limiter acts solely as a "safety" limiter, and is enabled when the output limiters are enabled via the

"LIM" switch on the front panel. (

See Setup Menu to defeat Channel Limiters entirely

.) In normal operation, with v. 5.06 Features and specifications are subject to change. Visit www.sounddevices.com for the latest documentation.

a properly set gain structure the threshold of the channel limiter will not be reached. If extremely high input signal levels exist, such as in high SPL environments or with misadjusted settings, the channel limiter(s) will activate to prevent the input channel from clipping. Without a channel limiter, high signal conditions would overload the channel and cause distortion. It is recommended that the channel limiters be used at all times. Below the set threshold (just below clipping), the limiter does not affect the sound in any way.

When input channels 1 & 2 are linked as a stereo pair, their channel limiters also link to perform the same gain reduction to both channels equally. Each channel has an orange limiter LED which illuminates in proportion to the amount of limiting. If the orange LED for a channel comes on substantially, it is recommended to turn down the Gain.

Peak LEDs

Each channel has an indication of peak signal activity. When a channel approaches 3 dB below its clipping level, the red Peak LED illuminates. If the red Peak LED for a channel comes on often, it is recommended to turn down the Gain.

Polarity Reversal - Channel 2

Engaging the polarity reverse switch inverts the polarity of channel 2. Polarity reversal is often used to quickly reverse the stereo fi eld in MS recording. The normal position is OFF, with polarity reversal occurring when the switch is in the

Θ position.

Do not change the polarity of channel two during recording, since a pop occurs when the switch changes states.

Stereo Link ON - Channels 1 and 2

When Stereo Link is set to ON, input channels 1 and 2 are turned into a single, stereo pair controlled by channel one's fader. The Pan control for channel 1 becomes a balance control between left and right. The Fader and Pan on channel 2 are disabled. Channel 1 and 2's trim level and high-pass fi lters remain active on their respective signals. When linked, channel 1 & 2's channel limiters are also linked.

Stereo Link MS - Channels 1 and 2

When Stereo Link is set to MS, input channels 1 and 2 are linked as an MS pair where input 1 is the Mid signal and input 2 is the side signal. The Channel 1 Pan Control functions as a left/right balance control for the matrixed MS signal. The Fader and Pan on channel 2 are disabled. The Gain Trims and high-pass fi lters still act individually. The Gain Trim controls for inputs 1 and 2 can be used to vary the Mid and Side levels respectively.

When linked, channel 1 and 2's channel limiters are also linked.

PFL (Channel Solo Monitoring)

When the momentary PFL switch is activated the channel audio is routed (in mono) to the headphones. This signal is post-trim, post high-pass, post-limiter, and pre-fade. From the factory the left meter indicates the signal level of the channel. PFL monitoring does not disrupt audio sent to the master outputs. The PFL metering function can be deactivated in the Setup Menu.-3. The 442 provides selectOutputs

The 442 is a two-bus mixer with several outputs - essential for multi-camera, multi-source productions. Because each input can be continuously panned from left to right, the mixer can be used with either two mono buses or with a single stereo bus.

Master Gain Control

A single master gain control adjusts the overall output level of the left and right outputs. The gain range of the

Master is from complete attenuation (master outputs off) to +6 dB of gain. For most applications the Master control should be set at the unity gain (0) position. The master gain is on a pop-up knob so it can be set and hidden from the main surface so inadvertent adjustments are avoided.

9

442/442N User Guide and Technical Information

Master Outputs - XLR and Hirose Multi-Pin

The master XLR and Multi-Pin outputs are transformer-balanced connections each driven from their own transformer windings for excellent isolation. Additionally, the outputs can independently be set to Line, Tape (-10 setting, 14 dB of attenuation from Line), or MIC Level (40 dB of attenuation from Line). The master outputs are capable of driving long lines.

The multi-pin connector also includes a stereo, unbalanced Return A input for headphone monitoring.

Secondary Balanced Outputs

The TA3-type connectors below the Master XLR pair are an additional set of master outputs. These outputs are impedance-balanced (pin-2 is driven and pin-3 is not) and can be used as either balanced or unbalanced outputs. The output level from the factory is Line-Level (+4 dBu nominal). This level can be changed in the Setup

Menu to Mic-Level.

Tape Outputs (Mix Output)

The 442 has an unbalanced, tape level output available on both a locking TA3-type connector and a 3.5 mm connector. These two connectors are resistively in parallel. Tape outs are typically used to interface with consumer inputs such as MiniDisc, DAT, and compact cassette recorders. Tape outputs are isolated from the main outputs, so any devices connected to these will have no effect on the master outputs.

Mono Mic Output

The Mono Mic Output is a sum of the two output channels intended for portable transcription recorders. This signal is mono, Tip/Sleeve, and is a microphone level. This output can also feed a wireless IFB transmitter.

Output Limiter

With the input and output limiters active, it is nearly impossible to clip (overload) the 442 mixer. To activate the

442 limiters, set the front-panel "LIM" switch to either the LINK or ON positions. See "Channel Limiter" section for more information on the input limiters.

The output limiters prevent the peak output signal level from exceeding the set limiter threshold. The output limiter threshold is set in the Setup Menu to any level from +4 dBu to +20 dBu in 1 dB increments (see Setup

Menu). From the factory, the mixer is set to limit the output signal peak levels to +20 dBu. This assures that the output of the 442 will not overload inputs that can accept full line-level signals (+24 dBu peak).

The orange LIM LEDs at the end of the meter scale illuminate in proportion to the amount of limiting.

LINK vs ON

The output limiters can be selected to act together as a single limiter controlling both the left and right output channels equally (LINK) or act as two independent limiters (ON). The LINK position is recommended when recording stereo program, so that level changes are identical for both channels. The ON position is recommended when using the 442 outputs as two separate buses.

10 v. 5.06 Features and specifications are subject to change. Visit www.sounddevices.com for the latest documentation.

Mix Input (linking mixers)

The Mix In connector allows two 442 mixers to be connected for a total of eight input channels. The signal of all eight input channels are present at the output of the 442 to which the Mix In connector is connected. The other

442's outputs will contain only its own four input channels. To link two 442 mixers, simply connect the Mix Out of the fi rst mixer to the Mix In of the second 442 with Sound Devices XL-1 link cable (optional). Alternatively, a

Sound Devices MixPre or MP-2 can be connected to the 442's Mix In with the proper cable.

The connector shell of the Mix In TA3 connector must be grounded to pin-1 of the connector to open the connection.

Metering

The 442 features a large 40-segment (20 per channel) LED output meter with selectable ballistics. The meter uses energy-effi cient GaN LED's, which can be viewed in full sunlight. The 442 output meter is unaffected by shock, temperature, or humidity extremes. The microcontroller-based output meter provides a selection of ballistics and lighting intensities.

Meter Ballistics

The output meter can be set to display any of four types of meter ballistics - VU, Peak, a composite of VU and

Peak, and a composite of VU with Peak hold. The button labeled PK/VU toggles the ballistics. The meter button can be pressed any time to change ballistics. See the Setup Menu for selections.

VU)

(Volume Units) Meter ballistics correspond closely to how the human ear perceives loudness and provides a good visual indication of how loud a signal will be. In VU mode, the attack and decay of the meter signal is 300 mS. While giving a very good visual indication of how loud a signal will be, a VU meter gives poor information on actual signal peaks. In VU mode, the front panel meter labeling is in volume units. VU meters are always referenced to an actual signal level in dBu, and the 442 VU meter is referenced with 0 VU corresponding to 0 dBu at the Line-Level outputs. If needed, the reference level can be changed via a User Setup to +4 dBu or +8 dBu.

Peak

Peak-reading ballistics correspond to actual signal peaks, but don't necessarily correspond to perceived signal loudness. The peak meter has an instantaneous attack to display all peaks and a slow decay to allow the user to see them. Peak metering is useful when interconnecting to modern audio inputs on digital equipment, as signal overload can cause immediate distortion. The peak meters front panel markings are calibrated in peak dBu level at the Line-Level outputs.

VU/Peak -

The 442 can simultaneously display VU and Peak level information. In this mode the perceived loudness (VU) is displayed on a bar graph, and the Peak signal on a dot above the VU. With this combination the user gets the best of both VU and Peak metering by seeing the "loudness" of the signal while observing peaks at the same time.

VU/Peak Hold

(fi rmware v. 3+ only) Similar to VU/Peak mode, this mode holds the peak level indication for several seconds before releasing. Peak Hold indicators are useful for metering in applications when an overload condition is unacceptable.

Ballistics Lock

(fi rmware v. 3+ only

)

Simultaneously pressing the battery check and meter brightness buttons locks the selection of the meter setting. This setting is saved on power down.

11

442/442N User Guide and Technical Information

Headphone Peak LED

Like the Channel Peak LEDs, the headphone circuit has an indicator for peak overload. This LED is very useful, since headphones can often overload before the mixer overloads. Monitoring without a visual indication of headphone clipping could mislead the operator into thinking that the output or return feeds are distorted. The

Headphone Peak LED also doubles as a clip indicator for the stereo Return A and Return B signals. If any of the

Return signals clip (after the Return gain stage), the Headphone Peak LED illuminates.

Headphone Monitoring

The 442 can drive headphones to dangerously high volumes. Turn down the headphone gain control before selecting a headphone source to prevent accidental signal extremes.

Headphone Source Selection

The rotary headphone source switch sets the audio source sent to headphones. The selections available are:

Off

L

R

M

ST

A

no signal left output only to both ears right output only to both ears summed (mono) left and right to both ears stereo - left output to left ear and right output to right ear stereo Return A to headphones

B

A|B

stereo Return B to headphones

Return A (summed) to left ear, and Return B (summed) to right ear

MS L

decoded MS Left to both ears

MS R

decoded MS Right to both ears

MS ST

decoded MS Stereo to headphones

Headphone Gain

Headphone gain is controlled by a pop up knob to remove it from the mixing surface.

Return A and B

The Return monitor switch has two positions, A and B. When switched to the A position, Return A audio is sent to the headphones, taking precedence over the Headphone Source selection. Similarly, when toggled to the B position, Return B audio is sent to the headphones. This switch can change assignments performed in the Setup

Menu.

12 v. 5.06 Features and specifications are subject to change. Visit www.sounddevices.com for the latest documentation.

Powering

The 442 can be powered from either internal batteries or externally via DC powering. The internal batteries can be used as either a primary power source or as a back-up in the event that external power is removed or depleted. The power switch selects the power source - either internal or external powering. There is a large enough power reserve to be able to switch back and forth from one source to the other without interruption of mixer signal.

The 442 is very power effi cient and can run from four-AA alkaline batteries (without phantom) for approximately eight hours. As additional load is placed on the mixer, battery life is reduced.

Internal Powering

The 442 can be powered by AA-sized (LR6) batteries of various types. Lithium cells, alkaline, and NiMH rechargeable AA battery types are all popular batteries for internal AA powering. The 442 will achieve longest battery life with use of Lithium or NiMH batteries.

External Powering

The 442 can be powered from any DC voltage from 5 to 18 VDC. Pin-4 of the locking, Hirose connector is positive (+) and pin-1 is negative (–). The external DC supply is completely isolated (fl oating) from the rest of the mixer for easy and safe interconnection to other external audio gear.

Power Metering

The battery check button indicates battery voltages of internal and external power supplies. The left meter shows the internal battery voltage and the right meter shows the external battery voltage. Since many different battery types are available for external use, the external DC metering can be customized for a given battery in the Setup Menu.

Power Consumption

The 442 can vary in the amount of current it draws. Several functions of the 442 directly affect current draw in different ways. The following list highlights the larger current drawing functions (listed from highest to lowest current draw).

1. Microphone powering - the main source of extra 442 current draw. (

See Phantom Power

) 48 V Phantom can draw copious amounts of current out of the batteries depending on what model microphone is used. Two phantom powered microphones draw twice as much current as one. Microphones vary widely in their current draw depending on type and phantom voltage applied.

2. Output drive level - higher output drive levels into multiple, low-impedance inputs increases current draw.

3. Headphone output circuit - high headphone output levels increase current draw.

Experimentation is recommended to determine battery life for each individual setup and application.

6

7

4

5

1

2

3

Setting

High

Voltage

6.0

13.0

17.0

8.5

14.0

7.0

17.0

16.3

LED Flash

Point

Low

Voltage

4.5

11.5

11.5

5.7

4.0

11.0

11.0

5.5

11.4

5.7

11.5

13.5

10.0

5.0

5.0

12.5

Power Source

Internal batteries

12 V NiCad, NiMH.

Expanded range of setting #1

6 V NiMH, Li-ion, etc.

12 V Lead Acid

6 V Lead Acid

Full range of DC input, w/ cutoff for 12 V NiCad, etc.

14 V Li-ion rechargeables

Factory Setting

13

442/442N User Guide and Technical Information

Tone Oscillator / Slate Microphone

A single 3-position switch controls both the tone oscillator and the slate microphone.

Tone Oscillator

Tone is used to set gain structure between the 442 and the next device in the signal path. The tone oscillator uses the locking position of the switch.

By default, the tone oscillator is set to output a 1 kHz sine wave at 0 dBu to the outputs (with the outputs set to

Line Level). Tone is also sent at the same level to the direct outputs. In the Setup Menu, the tone frequency and output level can be changed. Also, the tone oscillator can be removed from the direct outputs or the tone switch can be defeated altogether.

The 442 oscillator contains a unique feature: the headphone output is attenuated by 20 dB when tone is activated. This ear-saving feature can be defeated in the Setup Menu.

With tone active, press the battery check button to cycle the left output by 20 dB (used to verify left vs. right output). Turn off the tone oscillator or press the battery check button again to stop the output cycling.

Slate Microphone

The slate microphone is used to notate scenes at the mixer location. Its audio performance is not suitable for critical recording applications; it should only be used for documenting scenes to tape. The slate mic uses the momentary switch position. In the Setup Menu, a one second 400 Hz tone can be set to precede the slate microphone.

The slate mic is sent to all outputs except the Direct Outs. In the Setup Menu, the slate mic can be disabled to prevent unintended activation.

The slate mic can function as a communication mic in addition to its normal Slate Mic function. This function is normally disabled and is turned on in the Setup Menu. In this mode, program audio at the right secondarymaster TA3 connector is disabled. Instead, the audio from the slate mic appears when the RTN A/B switch is toggled. Normal program audio is unaffected. This function can be used in conjunction with a Sound Devices

MM-1 to create a fl exible communications system with a boom operator.

14 v. 5.06 Features and specifications are subject to change. Visit www.sounddevices.com for the latest documentation.

Accessing the Setup Menu

The 442 has 18 setup options (

See Setup charts

). Setups, while not typically changed during operation, are easily accessed from the front panel.

Enter the Setup Menu

To access the setup menu perform the following steps:

1. Turn off the mixer, if already on.

2. Depress and hold the Peak/VU selection switch while switching internal power on.

Hold while powering to enter setup menu

3. The setup mode is now enabled.

The mixer will not pass audio when in the setup menu.

In setup menu the left meter (L) position indicates the selected setup. The right meter (R) position indicates the values selected for the Setup. Use the PK/VU button advance from one setup to another. If you pass up the intended option, you must re-enter Set Up Mode since you cannot go backward, only forward when selecting individual setups.

To adjust values, the meter brightness button (left) and the battery check button (right) allow you to choose among setup values. Some setups have multiple values while others have only two values.

Example

: Change the Tone Oscillator Frequency from the factory default (1 kHz) to 100 Hz.

1. Enter the setup menu by holding down the PK/VU button while powering the mixer.

2. Press the PK/VU button several times until the left meter LED is at the –8 position (see Appendix - SETUP MENU).

3. To move among parameter values, press the brightness LED and battery check LED until the 100 Hz position is selected (–14 LED).

4. Press the PK/VU button sucessively until the meters perform their scrolling dance. This sets the parameter into memory.

To save new values to memory, the PK/VU button must be repeatedly pressed until the last setup is reached. At that point the meters will scroll and the new values will be saved to memory.

User Default

(v.5+ fi rmware only) A memory location is available to store user-defi ned default settings. The user default is helpful to save a new “baseline” of settings different than the factory default settings. To save a user default hold down both the meter brightness button and battery check button while powering the mixer. The current settings will be saved as the user default. These settings can be recalled from the setup menu.

Hold while powering to save current settings as user preset

15

442/442N User Guide and Technical Information

442 Nordic Information

The 442 Nordic (442N) is identical to the 442 except for its Nordic scale PPM meter.

Setup Menus

The Setup Menus vary slightly between the 442 and the 442N. To set the limiter threshold level an additional

LED is illuminated for calculation. To fi nd the limiter threshold value, consult the chart below.

Example

: Change the Limiter Threshold from the factory default of +20 dBu to +14 dBu.

1. Enter the Setup Menu by holding down the PK/VU button while powering the mixer.

2. The Limiter Threshold setup is the fi rst position (see Setup Menu).

3. To move among parameter values, press the brightness LED and battery check LED until the left meter illuminates “10” and the right meter illuminates “4”.

4. Press the PK/VU button multiple times until the meters perform their scrolling dance. This sets the parameter into memory.

Level

(in dBu)

+20

+19

Left

(top)

Meter

Right

(bottom)

Meter

20 0

10 10+8

+8

+7

+6

+12

+11

+10

+9

+5

+4

+18

+17

+16

10 8

10 8+6

10 6

+15 10 6+4

+14 10 4

+13 10 4+2

10

10

10

10+8

8

8+6

6

6+4

4

2

2+0

0

0

0

0

0

0

0

16 v. 5.06 Features and specifications are subject to change. Visit www.sounddevices.com for the latest documentation.

Setup Menu Firmware v 5.06

The chart below shows the available setups for the 442 and 442N. The fl ashing left (top) meter LED indicates the setup selected. The right meter LED indicates the available values, read from left to right.

L Meter

Position

442

(442N)

Setup Description

–30 (–30)

Output Limiter

Threshold Adjustment

Sets the output limiter threshold in dBu

–20 (–24) Input Limiter Defeat Keeps Input limiters OFF when the LIM switch is activated

–14 (–22)

–12 (–20)

Balanced TA3 Output

Level

Direct Output Level

Selects the nominal output level of the active-balanced

TA3 outputs

Selects the nominal output level of the active-balanced TA3 channel direct outputs

Setting (value on R Meter)

1 dB increments from +4 dBu to +20 dBu at Line Level output

-30 (–30) = OFF, -20 (–24) = ON

-30 (–30) = Line-Level, -20 (–24) = Mic-Level

-30 (–30) = Line-Level, -20 (–24) = Mic-Level

–10 (–18)

–8 (–16)

–6 (–14)

–4 (–12)

–2 (–10)

0 (–8)

2 (–6)

4 (–4)

6 (–2)

8 (0)

10 (2)

12 (4)

14 (6)

16 (8)

18 (10)

Tone Oscillator Freq.

Tone Oscillator Level

Selects the ƒ of the sine wave setup tone

Selects the output level of the tone oscillator in dBu

Tone @ Direct Output Selects whether tone is present on the Direct Outputs

Slate Mic Toggle

Selects whether slate mic is activated when slate toggle switch is activated

Comm Mic Function

Allows return A|B toggle to be defeated and be reassigned to send slate mic signal to right TA3 output when toggled

PFL Level to Meter Selects whether PFL level is indicated on the output meter

Monitor In Metering

Selects indication of monitor in signal level on the output meter

(post monitor gain control) when the monitor toggle is activated

-30 (–30) = 1000 Hz, -20 (–24) = 400 Hz,

-14 (–22) = 100 Hz

-30 (–30) = OFF, -20 (–24) = –20 dBu, -10 (–18) = –10 dBu, 1 dB increments to +8 dBu, 0 dBu = default.

-30 (–30) = ON, -20 (–24) = OFF

-30 (–30) = ON, -20 (–24) = ON with 1 second of 400 Hz tone preceding, -14 (–22) = OFF

-30 (–30) = OFF, -20 (–24) = ON

-30 (–30) = ON, -20 (–24) = OFF

-30 (–30) = OFF, -20 (–24) = ON

VU Reference Level Selects 0 VU to dBu reference

-30 (-30) = 0 VU = 0 dBu, -20 (-24) = 0 VU = +4 dBu, -14

(-22) = 0 VU = +8 dBu , -12 (-20) = 0 VU/Peak = +1 dBu,

-10 (-18) = 0 VU/Peak = +2 dBu, -8 (-16) = 0 VU/Peak = +3 dBu, -6 (-14) = 0 VU/Peak = +4 dBu, -4 (-12) = 0 VU/Peak =

+5 dBu, -2 (-10) = 0 VU/Peak = +6 dBu, 0 (-8) = 0 VU/Peak

= +7 dBu, -2 (-10) = 0 VU/0 Peak = +8 dBu

Split-Ear Monitor A

Split-Ear Monitor B

Return Toggle

Assignment

Headphone

Attenuation with Tone

External Battery

Voltage Reference

Changes monitoring to hear program audio in one ear and monitor A in the other ear. Return A is summed and appears in R (right) headphone and L program appears in L (left) headphone. Is only active when Return toggle switch is activated.

Changes monitoring to hear program audio in one ear and monitor B in the other ear. Return B is summed and appears

in L (left) headphone and R program appears in R (right) headphone. Is only active when Return toggle switch is activated.

Allows the three-position monitor toggle to be assigned depending on preferred monitor connection used

Reduces headphone level by 20 dB when the tone oscillator is activated

Selects the Voltage range of the battery check function with external power. Also adjusts the flashing power LED voltage

under external power.

Meter Ballistics

Select

Default Restore

Selects the meter ballistics options available at the meter selection button.

Restores setup menu to the stored user default or to the factory default settings

-30 (–30) = OFF, -20 (–24) = ON

-30 (–30) = OFF, -20 (–24) = ON

-30 (–30) = A|OFF|B, -20(–24) = B|OFF|A,

-14 (–22) = A|OFF|A, -12 (-20) = B|OFF|B

-30 (–30) = ON, -20 (–24) = OFF

1 = –30 (-30), 2 = -20 (–24), 3 = -14 (–22),

4 = -12 (–20), 5 = -10 (–18), 6 = -8 (–16), 7 = -6 (–14)

see Powering for index.

-30 (–30) = PPM|VU|VU-PPMHold|VU-PPM,

-20 (-24) = PPM|VU-PPMHold|VU-PPM,

-14 (–22) = VU|VU-PPMHold|VU-PPM,

-12 (-20) = PPM|VU-PPM,

-10 (-18) = VU-PPM|VU-PPMHold

-30 (–30) = OFF, -20 (-24) = User Default,

-14 (-22) = Factory Default

17

442/442N User Guide and Technical Information

Setup Menu Firmware v 3 & 4

The chart below shows the available setups for the 442 and 442N. The fl ashing left (top) meter LED indicates the setup selected. The right meter LED indicates the available values, read from left to right.

L Meter

Position

442

(442N)

Setup

-30 (-30)

-20 (-24)

-14 (-22)

-12 (-20)

-10 (-18)

-8 (-16)

-6 (-14)

-4 (-12)

-2 (-10)

0 (-8)

2 (-6)

4 (-4)

6 (-2)

8 (0)

10 (2)

12 (4)

14 (6)

16 (8)

18 (10)

Description Setting (value on R Meter)

Output Limiter Threshold

Adjustment

Sets the output limiter threshold in dBu

1 dB increments from +4 dBu to +20 dBu at Line

Level output

Input Limiter Defeat

Allows the input limiters to remain OFF when the LIM switch is activated

-30 (-30) = OFF, -20 (-24) = ON

Balanced TA3 Output Level Selects the nominal output level of the active-balanced TA3 outputs -30 (-30) = Line-Level, -20 (-24) = Mic-Level

Direct Output Level

Tone Oscillator Frequency

Tone Oscillator Level

Tone @ Direct Output

Slate Mic Toggle

Selects the nominal output level of the active-balanced TA3 channel direct outputs

-30 (-30) Line-Level, -20 (-24) Mic-Level

Selects the frequency of the sine wave setup tone

Selects the output level of the tone oscillator in dBu

Selects whether tone is present on the Direct Outputs

Selects whether slate mic is activated when slate toggle switch is activated

-30 (-30) = 1000, -20 (-24) = 400,

-14 (-22) = 100 Hz

-30 (-30) = OFF, -20 (-24) = -20 dBu,

-10 (-18) = -10 dBu,

1 dB increments to +8 dBu, 0 dBu = default.

-30 (-30) = ON, -20 (-24) = OFF

-30 (-30) = ON, -20 (-24) = ON with 1 second of

400 Hz tone preceding, -14 (-22) = OFF

Note: tone not an option on firmware v3.

Comm Mic Function

PFL Level to Meter

Monitor In Metering

Allows return A|B toggle to be defeated and be reassigned to send slate mic signal to right TA3 output when toggled

Selects whether PFL level is indicated on the output meter

Selects indication of monitor in signal level on the output meter

(post monitor gain control) when the monitor toggle is activated

-30 (-30) = OFF, -20 (-24) = ON

-30 (-30) = ON, -20 (-24) = OFF

-30 (-30) = OFF, -20 (-24) = ON

VU Reference Level Selects 0 VU to dBu reference

-30 (-30) = 0 dBu, -20 (-24) = +4 dBu,

-14 (-22) = +8 dBu

Split-Ear Monitor A

Split-Ear Monitor B

Return Toggle Assignment

Headphone Attenuation with Tone

External Battery Voltage

Reference

Changes monitoring to hear program audio in one ear and monitor

A in the other ear. Return A is summed and appears in R (right) headphone and L program appears in L (left) headphone. Is only active when Return toggle switch is activated.

Changes monitoring to hear program audio in one ear and monitor B in the other ear. Return B is summed and appears in L (left) headphone and R program appears in R (right) headphone. Is only active when Return toggle switch is activated.

Allows the three-position monitor toggle to be assigned depending on preferred monitor connection used

Reduces the headphone level by 20 dB when the tone oscillator is activated

Selects the Voltage range of the battery check function with external power. Also adjusts the flashing power LED voltage under external power.

-30 (-30) = OFF, -20 (-24) = ON

-30 (-30) = OFF, -20 (-24) = ON

-30 (-30) = A|OFF|B, -20 (-24) = B|OFF|A,

-14 (-22) = A|OFF|A, -12 (-20) = B|OFF|B

-30 (-30) = ON, -20 (-24) = OFF

Meter Ballistics Select

Factory Default Restore

Selects the meter ballistics options available at the meter selection button.

Enables the factory defaults to be reset

1 = –30 (-30), 2 = -20 (–24), 3 = -14 (–22),

4 = -12 (–20), 5 = -10 (–18), 6 = -8 (–16)

see Powering for index.

-30 (–30) = PPM|VU|VU-PPMHold|VU-

PPM

-20 (-24) = PPM|VU-PPMHold|VU-PPM

-14 (–22) = VU|VU-PPMHold|VU-PPM

-12 (-20) = PPM|VU-PPM

-10 (-18) = VU-PPM|VU-PPMHold

-30 (-30) = OFF, -20 = (-24) ON

18 v. 5.06 Features and specifications are subject to change. Visit www.sounddevices.com for the latest documentation.

Setup Menu Firmware v 2, (442 only)

The chart below is provided for users with the original production 442 fi rmware. Determine the fi rmware revision by viewing the meters when the unit is powered up. The left meter indicates the fi rmware version. The meters “dance” then an LED is lit. If the second LED from the left is lit, the unit has fi rmware version 2.

-8

-6

-4

-2

0

2

4

L Meter

Position

442

-30

-20

-14

-12

-10

6

8

10

12

14

16

Setup Description Setting (value on R Meter)

Output Limiter Threshold

Adjustment

Sets the output limiter threshold in dBu

1 dB increments from +4 dBu to +20 dBu at Line

Level output

Input Limiter Defeat

Allows the input limiters to remain OFF when the LIM switch is activated

-30 = OFF, -20 = ON

Balanced TA3 Output

Level

Selects the nominal output level of the active-balanced TA3 outputs -30 = Line-Level, -20 = Aux-Level

Direct Output Level

Selects the nominal output level of the active-balanced TA3 channel direct outputs

-30 = Line-Level, -20 = Aux-Level

Tone Oscillator

Frequency

Selects the frequency of the sine wave setup tone -30 = 100, -20 = 400, -14 = 1000 Hz

Tone Oscillator Level

Tone @ Direct Output

Slate Mic Toggle

Comm Mic Function

PFL Level to Meter

Monitor In Metering

VU Reference Level

Split-Ear Monitor A

Selects the output level of the tone oscillator in dBu

-30 = -20 dBu, -20 = -10 dBu, -14 = -8 dBu,

-12 = 0 dBu, -10 = +4 dBu, -8 = +8 dBu, -6 = OFF

-30 = OFF, -20 = ON Selects whether tone is present on the Direct Outputs

Selects whether slate mic is activated when slate toggle switch is activated

-30 = ON, -20 = OFF

Allows return A|B toggle to be defeated and be reassigned to send slate mic signal to right TA3 output when toggled

Selects whether PFL level is indicated on the output meter

Selects 0 VU to dBu reference

Changes monitoring to hear program audio in one ear and monitor

A in the other ear. Return A is summed and appears in R (right) headphone and L program appears in L (left) headphone. Is only active when Return toggle switch is activated.

-30 = OFF, -20 = ON

-30 = OFF, -20 = ON

Selects indication of monitor in signal level on the output meter (post monitor gain control) when the monitor toggle is activated

-30 = OFF, -20 = ON

-30 = 0 dBu, -20 = +4 dBu, -14 = +8 dBu

-30 = OFF, -20 = ON

Split-Ear Monitor B

Changes monitoring to hear program audio in one ear and monitor

B in the other ear. Return B is summed and appears in L (left) headphone and R program appears in R (right) headphone. Is only active when Return toggle switch is activated.

Allows the three-position monitor toggle to be assigned depending on preferred monitor connection used

-30 = OFF, -20 = ON

-30 = A|OFF|B, -20 = B|OFF|A, -14 = A|OFF|A,

-12 = B|OFF|B

Return Toggle

Assignment

Headphone Attenuation with Tone

External Battery Voltage

Reference

Reduces the headphone level by 20 dB when the tone oscillator is activated

Selects the Voltage range of the battery check function with external power. Also adjusts the flashing power LED voltage under external power.

Factory Default Restore Returns the 442 to the factory defaults settings

-30 = OFF, -20 = ON

1 = -30, 2 = -20, 3 = -14, 4 = -12, 5 = -10, 6 = -8 see POWERING for index

-30 = OFF, -20 = Reset

19

442/442N User Guide and Technical Information

Specifi cations

Measurement Settings

(unless otherwise specifi ed): Gain controls for the channel being measured at mid point, all other channel gains fully down; pan controls centered; low-cut off; inputs in 'MIC' position; outputs in LINE position. Mic input driven with 150 ohm source. Outputs measured with 100k ohm load. Temperature at 25°C

Maximum Gain, typical (Trim, Fader, Master, Phones, RTN A, RTN B fully up):

XLR, Multi-pin Outs @ LINE Setting

XLR, Multi-pin Outs @ –10 Setting

XLR, Multi-pin Outs @ MIC Setting

Balanced TA3-type Outs @ LINE Setting

Balanced TA3-type Outs @ MIC Setting

Tape Out, TA3-type and 1/8”

Mono Mic Out

Headphones, ¼” and 1/8”

XLR Input MIC Setting

81 dB

67 dB

41 dB

81 dB

41 dB

67 dB

41 dB

101 dB

XLR Input LINE Setting

41 dB

27 dB

1 dB

41 dB

1 dB

27 dB

1 dB

81 dB

-

RTN A, B

-

-

-

-

-

-

30 dB

Inputs

Impedance

(Ohms)

XLR - MIC setting 2k

XLR - LINE setting 16k

RTN A, B (3.5 mm/

TA3/Multipin)

Mix In

20k

4.2k

Type For use with: Max Input Level

transformer-balanced <600 ohm mics transformer-balanced <2k ohm outputs unbalanced, stereo unbalanced, stereo

0 dBu (0.78 Vrms)

+40 dBu (80 Vrms)

<2k ohms outputs

+24 dBu (12.4

Vrms)

442 Mix Out (1.8k) +6 dBu (1.5 Vrms)

20 v. 5.06 Features and specifications are subject to change. Visit www.sounddevices.com for the latest documentation.

Outputs

XLR & multi-pin,

LINE

setting

XLR & multi-pin, –10 setting

XLR & multi-pin,

MIC

setting

TA3-type, LINE setting

Impedance

(ohms actual)

85

3.2k

150

1k

TA3-type, MIC setting 1k

Direct Outs, LINE setting

Direct Outs, MIC setting

Tape Outs, 3.5 mm and TA3-type

Mono Mic Out

Headphones, 3.5 mm and ¼”

1k

1k

1.8k

150

Type

transformer-balanced transformer-balanced transformer-balanced impedance-balanced, pin-2 driven impedance-balanced, pin-2 driven impedance-balanced, pin-2 driven impedance-balanced, pin-2 driven unbalanced, stereo >6k ohm inputs unbalanced, mono

For use with:

>=600 ohm inputs

>10k ohm inputs +6 dBu (1.5 V rms)

>600 ohm inputs

–20 dBu (0.078

Vrms)

>3k ohm inputs

>3k ohm inputs

>3k ohm inputs

>3k ohm inputs

>600 ohm inputs

Max Output Level

+20 dBu (7.8 Vrms)

+20 dBu (7.8 Vrms)

-20 dBu (0.078

Vrms)

+20 dBu (7.8 Vrms)

–20 dBu (0.078

Vrms)

+6 dBu (1.5 Vrms)

–20 dBu (0.078

Vrms)

+20 dBu (7.8 Vrms)

21

442/442N User Guide and Technical Information

Frequency Response:

20 Hz to 30 kHz, +0.2, –0.5 dB, –1 dB @ 5 Hz and 50 kHz typical

Equivalent Input Noise:

–126 dBu (–128 dBV) maximum. (22 Hz - 22 kHz bandwidth, flat filter, trim control fully up)

Input Clipping Level:

0 dBu minimum (trim control fully down)

Line Output Clipping Level (1% THD):

20 dBu minimum

18 dBu minimum w/600 ohm load

Dynamic Range:

115 dB minimum (trim fully down)

THD + Noise:

0.007% typical (1 kHz, +4 dBu at line out)

0.09% max (50 Hz - 20 kHz, +18 dBu at line out, fader fully up)

Output Noise:

–100 dBu (–102 dBV) maximum (22 Hz - 22 kHz bandwidth, flat filter, master gain fully up, faders fully down)

Common Mode Rejection Ratio:

120 dB minimum at 80 Hz, mic input

100 dB minimum at 10 kHz, mic input

L/R Gain Matching, Mic in to Line Out:

+/- 0.1 dB

High-Pass Filters:

Sweepable 80 Hz to 240 Hz, 12 dB/oct at 80 Hz,

6 dB/octave at 240 Hz

Mic Powering (each mic selectable):

Dynamic (no power applied),

12 V Phantom - though 680 ohm resistors, 10 mA per mic available,

48 V Phantom - through 6.8k resistors, 10 mA per mic available,

12 V T-Power - through 180 ohm resistors, 10 mA per mic available

Input Limiters:

Affects the output of the mic preamps only ('Trim' stage),

+18 dBu threshold, 20:1 limiting ratio,

1 mS attack time, 200 mS release time

Temperature:

Operating: –20°C to 60°C, 0 to 95% relative humidity;

(non-condensing)

Storage: –40°C to 85°C

Audio Connectors:

10-pin Hirose multipin (see pg. 18 for pin assignments) to mate with Hirose #RM15TD-10P,

TA3M to mate with TA3F-type

Output Limiters:

Affects the outputs of the mixer.

Threshold selectable from +4 dBu to +20 dBu,

1 dB steps, 20:1 limiting ratio, 1 mS attack time,

200 mS release time.

Power supply:

Internal ±16 V (bi-polar) regulated audio rails,

3.2-8 V range internal batteries,

Isolated (floating) external DC input jack, 5-18 V

Locking 4-pin Hirose connector, pin-4 = (+), pin-1 = (-),

Use gold Hirose #HR10A-7P-4P (DigiKey# HR110-ND) or silver Hirose #HR10-7P-4P (DigiKey# HR100-ND) for locking mating DC connector.

Metering:

40 segment, sunlight-viewable

Selectable Peak, VU, or Peak (with or without peak hold)

+ VU ballistics.

Weight:

2.0 kg, (4.5 lbs) unpackaged with four AA batteries

Dimensions:

53 mm x 165 mm x 279 mm (H x W x D)

2.1” x 6.5 x 11"

22 v. 5.06 Features and specifications are subject to change. Visit www.sounddevices.com for the latest documentation.

Block Diagram - Inputs and Outputs

23

442/442N User Guide and Technical Information

Block Diagram - Monitoring

24 v. 5.06 Features and specifications are subject to change. Visit www.sounddevices.com for the latest documentation.

Accessories

Several high-value accessories are available for the 302 mixer, including a carry-case, cables, and power accessories. For a full list of Sound Devices products and accessories, visit our web site www.sounddevices.com/

products

.

CS-4

Production case with high-quality strap for use with 442 Field Mixer with integrated acessory compartment and NP-type battery compartment. Built for

Sound Devices by CamRade..

CS-W

XL-H

XL-K1

XL-K2

XL-NPH

XL-WPH2

The CS-W is a removable accessory case for the CS-4 Production Case. The

CS-W is designed to hold wireless transmitters and receivers and provides the appropriate cable routing for interconnection of wireless, mixers, and recorders.

Built for Sound Devices by CamRade.

Bare Hirose connector, (Hirose p/n HR10-7P-4P) to mate with locking 4-pin DC power jack.

Knob accessory kit for 442. Replaces the fader knobs with visual and tactile position-indicating knobs. Kit of four, 2-black 2-gray. Includes colored inserts.

442-specifi c.

Knob accessory kit for 442. Replaces the fader knobs with visual and tactile position-indicating knobs. Kit of four, 2-black 2-gray. Includes colored inserts.

442-specifi c.

NP-type battery cup with 12-inch cable with Hirose 4-pin locking power jack at equipment end. For use with 302, 442N, 442, and MixPre.

Universal, in-line AC-to-DC power supply with detachable IEC power cord.

Input: 100–240, 50/60 Hz; output 12 VDC, 30 W on Hirose 4-pin connector..

XL-1 / XL-1A

XL-2

XL-2F

XL-3

XL-4

XL-10

TA3-F to TA3-F Interconnection cables for 302-to-302 and 302-to-442 linking;

24-inch (XL-1A package of 2).

TA3-F to XLR-M (male) cable; 25-inch; connects balanced TA3 to XLR inputs; package of two cables

TA3-F to XLR-F (female) cable; 25-inch; connects balanced TA3 to XLR inputs; package of two cables; 442-specifi c.

3.5 mm to TA3-F link cable for MixPre/MP-2 Tape Output to 302 Mix In;

20-inch.

Bag of four (4) TA3-F-type connectors.

Hirose 10-pin to two-XLR (balanced L/R) and 3.5 mm plug (442 Stereo Return

A) breakout cable; includes in-line 20-foot extension cable; 442-specifi c.

25

442/442N User Guide and Technical Information

CE Declaration of Conformity

According to ISO/IEC Guide 22

Sound Devices, LLC

300 Wengel Drive

Reedsburg, WI 53959 USA declares that the product, 442 Production Field Mixer is in conformity with and passes:

EN55103-1, 1997

EN55103-2, 1997

EMC-product family standard for audio, video, audio-visual and entertainment lighting control apparatus for professional use.

Part 1: Emissions

EMC-product family standard for audio, video, audio-visual and entertainment lighting control apparatus for professional use.

Part 2: Immunity

EN55103-1 Phenomena 2, 3, 1997

EN55103-2 Phenomena 3, 1997

EN61000-4-2 (2001)/

IEC61000-4-2 (2001)

Magnetic emissions at 1 meter 50 Hz – 50 kHz

Magnetic immunity 50 Hz to 10 kHz

ESD, ±4 kV contact, ±8 kV air discharge

EN61000-4-3 (2001)/

IEC1000-4-3 (2001)

EN61000-4-4 (2001)/

IEC61000-4-4 (2001)

EN61000-4-4 (2001)/

IEC61000-4-4 (2001)

EN61000-4-5 (2001)/

IEC61000-4-5 (2001)

EN61000-4-6 (2001)/

IEC61000-4-6 (2001)

IEC61000-4-11(2001)

Radiated RF immunity, 10 V/m, 80% 1 kHz amplitude modulation

AC power ports: EFT Burst, I/O lines, ±0.25 kV to ±1.0 kV, power line ±0.5 kB – ±1 kV

EFT Burst, I/O lines, ±0.25 kV to ±1.0 kV, power line ±0.5 kB – ±1 kV

Surge ±1 kV differential mode (line-to-line), ±2 kV common mode (line-to-ground)

Conducted RF immunity, 3 V, 80% @1 kHz amplitude modulation

Voltage dips and short interruptions at test voltage level: 0% V unominal @ 70% V unominal @ 25 period

Tested by L. S. Compliance, Inc. Cedarburg, Wisconsin

December 16, 2001

Matthew Anderson

Director of Engineering

Sound Devices, LLC

26 v. 5.06 Features and specifications are subject to change. Visit www.sounddevices.com for the latest documentation.

Warranty and Technical Support

Warranty

Sound Devices, LLC warrants the 442 Production Mixer against defects in materials and workmanship for a period of ONE (1) year from date of original retail purchase. This is a non-transferable warranty that extends only to the original purchaser. Sound Devices, LLC will repair or replace the product at its discretion at no charge.

Warranty claims due to severe service conditions will be addressed on an individual basis. THE WARRANTY

AND REMEDIES SET FORTH ABOVE ARE EXCLUSIVE. SOUND DEVICES, LLC DISCLAIMS ALL OTHER

WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS

FOR A PARTICULAR PURPOSE. SOUND DEVICES, LLC IS NOT RESPONSIBLE FOR SPECIAL, INCIDEN-

TAL, OR CONSEQUENTIAL DAMAGES ARISING FROM ANY BREACH OF WARRANTY OR UNDER ANY

OTHER LEGAL THEORY. Because some jurisdictions do not permit the exclusion or limitations set forth above, they may not apply in all cases.

For all service, including warranty repair, please contact Sound Devices for an RMA number and send the 442, along with proof of purchase date to:

Sound Devices, LLC

Service Repair RMA # XXXX

300 Wengel Drive

Reedsburg, WI 53959 USA

Technical Support / Bug Reports

For technical support and bug reporting on all Sound Devices products contact:

Sound Devices, LLC

E-mail: [email protected] web: www.sounddevices.com/contact_support.htm

Telephone: +1 (608) 524-0625 / Toll-Free in the U.S.A.: (800) 505-0625

Fax: +1 (608) 524-0655

Sound Devices hosts a support forum for 7-Series recorders. The URL is:

www.sounddevicessupport.com

FCC Statement

This device has been tested and found to comply with the limits for a class B digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.

However, there is no guarantee that interference will not occur in a particular installation.

27

442 & 442N - Printed in U.S.A.

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