Clarion | APX2181 | 2009 Application Guide

Amplifiers
81
Amplifiers
2009 Amplifier Line Overview
2009 Amplifier Technologies
With a heritage of power, performance and quality that spans many decades, Clarion proudly
introduces our most sophisticated amplifier line
ever. The entire line offers the kind of power and
performance that todays customers demand.
Precise Frequency Selector Electronic
Crossover
Clarion does not ignore the need for an amplifier to look cool, but we put sound quality and
performance at the top of our list. We will not
forego musical transparency and control for size
or a cosmetic feature, instead we embrace the
latest in power supply technologies to make our
amplifiers simulatenously musical, efficient and
compact.
Clarion amplifiers are developed to compliment
one-another in terms of features, performance
and design. These features exist to help installers
complete the integration of these amplifiers into
a vehicle faster and more accurately. Likewise,
these features also help to improve the performance of the amplifier.
APX Series
Model
APX2121
APX4241
APX1301
Description
2-Channel
4-Channel
Mono
Power (4Ω)
2 x 60W
4 x 60W
1 x 300W
APX Plus Series
Model
Class Description
APX2181
AB
2-Channel
APX4361
AB
4-Channel
Power (4Ω)
2 x 90W
4 x 90W
DPX Series
Model
DPX2251
DPX1851
DPX11551
Description
2-Channel
Mono
Mono
Power(2Ω)
2 x 300W
1 x 850W
1 x 1550W
Marine Amplifiers
Model
Class Descripton
APX290M
AB
2-Channel
APX490M
AB
4-Channel
Power(4Ω)
2 x 90W
4 x 90W
82
Class
AB
AB
AB
Class
GH
GH
GH
The inclusion of an electronic
crossover in an amplifier allows
the speaker to receive on the musical information that it can produce properly. This means that
sound quality from the speaker is improved and
power handling in smaller speakers is increased
dramatically.
One drawback of an electronic crossover which
allows the crossover frequency to be adjusted
through the use of a potentiometer is that it can be
difficult to precisely set the crossover frequency .
This is because the potentiometer is nearly infinitely adjustable. Many crossover controls are only
labelled at the top and bottom of their frequency
range, making selecting a frequency in the middle
of the adjustment range nearly impossible..
Clarion provides a simple and elegant solution
for accurately setting crossover points with our
PFS (Precise Frequency Selector) crossover.
The potentiometer on the APX2181, APX4361,
DPX2251, DPX1851, DPX11551, APX290M and
APX490M amplifiers has 41 detented positions.
Using the supplied charts, you can select a specific crossover frequency, then to set it, turn the
adjustment potentiometer the according number
of clicks, and you are done.
One of the many benefits of this feature surfaces
when you are building a multi-amp system. With
conventional (Non PFS) crossover controls, you
could end up setting a subwoofer amp set to
70Hz when you were aiming for 85Hz and end up
at 100Hz on the mids and highs amp. The result
would be a system that lacks mid-bass dynamics
and makes the bass frequencies sound disconnected from the mids and highs. PFS makes
under/over-lapping of crossovers history.
Amplifiers – Technologies
Input Voltage Selector Gain Control
0.45dB - nearly half of the non-IVS amplifier.
Conventional amplifier gain (or
sensitivity) adjustment systems
have inherent limitations. These controls utilize
ganged or stacked potentiometers to allow you
to match the power production capabilities of the
amplifier to the signal strength of the source unit
that is feeding it. To allow an amplifier to be used
with as many different sources as possible, the
sensitivity range should be as wide as possible.
You might be asking yourself: Why not individual
gain controls? While individual gain controls can
offer very accurate sensitivity settings, an installer
MUST use an oscilloscope or voltmeter to properly set these controls for accurate channel to
channel output. At the very least, the installer
could tune the system by ear, but this will require
many trips from the listening position back to the
amplifier. The decision to implement IVS offers the
same result but saves the installer time when setting gains because fewer tools are required.
Because the gain control uses several potentiometers that are connected together (ganged), the
exact resistance of each of these devices may not
match the next one. The result is one channel of
the amplifier will be louder than the other. This is
called channel imbalance.
To combat channel imbalance, Clarion has impleted IVS (Input Voltage Selector) technolgoy on the
APX2181, APX4361, DPX2251, DPX1851 and
DPX11551 amplifiers.
IVS dramatically reduces channel imbalance by
implementing a switch that controls the gain
range: 0-0.6v, 0.6-2v, 2-8v. This switch is used in
conjunction with a narrow-range adjustable potentiometer for fine tuning. The result is a reduction in
maximum potential channel imbalance, improved
imaging and a more accurate soundstage.
The graph above shows the amount of channel imbalance from two identical amplifiers, one
with IVS and one without. The curve with the
large bump (red) is the amplifier without IVS and
reaches a maximum channel imbalance of 0.75dB
at 0.25% of maximum gain. The two overlapping
curves (Blue and Green) show the channel imbalance of an IVS-equipped amp at the 0.6-2V and
2V-8V settings. The maximum imbalance is only
Hybrid Class GH Power Supplies
Amplifier efficiency has never been more important
than it is in today's modern vehicles. Alternators,
batteries and factory wiring are smaller than ever
to produce the lightest and most fuel efficient
vehicles possible at the lowest cost.
Clarion's DPX amplifiers feature Hybrid Class GH
power supplies. This technology is the result of
years of design and testing to offer the optimum
balance of sound quality and efficiency - exactly
what a Clarion customer demands.
The operation of a Hybrid Class GH amplifier is
very simple. Traditional amplifiers use a Class AB
output device topology. Essentially, there are a set
of switching devices (transistors) for the positive
half of the waveform and another set for the negative half of the waveform. These devices operate linearly, passing more current through them
as more signal is sent to them. The drawback
with Class AB topology is that the output devices
operate in their resistive region, rarely fully on or
off. This results in a great deal of heat being generated and energy wasted. Around a decade ago,
the introduction of Class D amplifiers to the car
audio market offered a significant improvement
in amplifier efficiency at the expense of sound
quality and control. Class D amplifiers operate by
cycling the output devices fully on and off very
quickly. Adjusting the on versus off time effects
a change in output level. One of the many drawbacks of Class D amplifiers is that they require
83
Amplifiers – Technologies
large filtering networks after the output stage to
clean up the signal and remove high frequency
switching noise. Class D amplifiers can cause
significant electrical interference that can affect
radio reception.
Clarion's Hybrid Class GH technology is truly the
best of both worlds. Clarion’s DPX amplifiers use
a fully analog Class AB audio path. This meanss
tight, controlled, dynamic power output.
How does Hybrid Class GH work to improve
efficiency if the audio path is all analog? Think
of the new Dodge Hemi or Cadillac Northstar
engines. These engines have the ability to shut
down a number of cylinders to reduce fuel comsumption and heat generation when under light
loads. The power supply of a Hybird Class GH
amplifier works in the same way. A microcontroller (computer) inside the amplifier controls the
output voltage of the power supply. It keeps the
voltage just above the output level necessary
to reproduce the audio signal. This means that
although the output devices are operated linearly,
they are almost fully on - it's the power supply
voltage that changes. The result is a significant
improvement in efficiency without any effect on
amplifier sound quality.
The graph below compares the efficiency of a conventional Class AB 1500W amp to our DPX11551
1500W amplifier. You can see that around 350W
DPX11551 is ~65% efficient, whereas the conventional Class AB is merely 25% efficient. This
means, that the DPX11551 is drawing only 37A
of current, where the Class AB amp would be
drawing closer to 97A of current.
Strappable Power
The DPX1851 and DPX11551 amplifiers are both
strappable. This means, a pair of amplifiers can
be used on a single voice coil to provide additional power production for extreme SPL levels.
A pair of DPX1851 amplifiers would produce
1,600W into a 2 or 4 Ohm load, and a pair of
DPX11551 would produce 3,000W into a 2 or 4
Ohm load.
Remote Bass Control
The Clarion DPX2251, DPX1851
and DPX11551 amplifiers offer
the ability to connect an optional
Remote Bass Control module called the BC2.
This allows you to control the amplifiers output
level from the front of the vehicle. Unlike some
competitors products, this is not a bass boost
control. This was done for optimum sound quality and performance across the entire frequency
range, rather than making the bass sound
boomy.
Adjustable Subsonic Filter
Clarion’s DPX1851 and
DPX11551 amplifiers feature an
adjustable subsonic filter. This
filter is adjustable from 10Hz to 80Hz using a
potentiometer on the end panel of the amplifier.
When using subwoofers in vented cabinets with
high tuning frequencies (above 35Hz), in or large
vented enclosures, physical power handling of
the subwoofer may easily be exceeded. The
proper use of a subsonic filter will limit the
amount of ultra-low frequency information being
passed through to the speaker, as well as reduce
the amount of power the amplifier consumes in
amplifying those low frequencies.
Forced Induction Cooling
Clarion's APX Plus and DPX amplifiers feature
forced induction cooling. This is a two-part
technology. First, the heatsink design of the
amplifier maximizes air flow across the switching devices to hit them with a blast of cool air.
Air is then injested into the core of the amplifier
and expelled through the ends of the amp. The
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Amplifiers – Technologies
second part of Forced Induction Cooling is the
computer controlled cooling fan. A thermal sensor connected to the heat sink of the amp combined with programming logic in the amplifiers
core decides the appropriate speed for the fan
to maximize cooling while minimizing noise.
electrical system noise, contributing to maximum
dynamic range.
Clarion recommends the use of twisted-pair RCA
interconnects with our amplifiers.
High Impedance Inputs
Clarion amplifiers feature high impedance RCA
input stages. This allows source unit with low
quality high impedance preamp outputs to
provide the best possible frequency and phase
response while limiting the effect of interconnect reactances on the amplifiers frequency
response.
High impedance inputs also allow you drive
multiple amplifiers from a single set of preamp
outputs using Y-Cables without as dramatic an
effect on signal quality
Mixed-Mode Operation
Clarion 2- and 4-channel amplifiers use an
inverting circuit that allows a pair of channels to
simultaneously drive multiple satellite speakers
in stereo and a subwoofer in a bridged-mono
configuration. When used in conjunction with
passive crossover components, a Clarion amplifier is capable of mixed mode operation that can
power an entire audio system.
Differential Inputs
High-impedance differential input stages separate the input signal ground from the common
chassis ground. This creates a very effective
ground-loop isolation circuit that reduces the
possibility of charging system noise entering
the signal path. The circuit also compares the
signal information on the shield to that of the
center conductor and eliminates any common
signal (noise), leaving only clear and detailed
music.
Amplifier Circuit Components
Any product is only as good as its weakest link.
When Clarion decided to reduce the physical
size of our DPX and APX Plus amplifiers, we
knew that this could not be done at the expense
of sound quality, performance or reliability.
The decision was made to design these amplifiers
for the use of surface mount technology (SMT)
devices. SMT devices offer improved tolerances
as compared to through-hole devices, and better
resist electrical interference from RF or EMI noise.
The result is an amplifier that costs a little more to
produce, but sounds better.
This advanced circuit topology ensures that
Clarion amplifiers will accurately reproduce all the
dynamics and subtleties found in today’s digital
recordings. At the same time, noise suppression
circuits work to effectively to eliminate induced
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Amplifiers – Technologies
Illuminated Heat Sink
Clarion's APX Plus and DPX amplifiers feature
an illuminated Carbon Fiber badge in the center
of the amplifer. This badge can be removed and
rotated to maintain the readability in custom
installations.
Multi-Channel Amplifiers
Clarion’s multi-channel amplifiers provide four
channels of amplification from one chassis. Each
amplifier is equipped with front and rear gain
controls and high-/low-pass electronic crossovers. This configuration provides maximum system flexibility.
A four-channel amplifier is the perfect starting
point in terms of an amplifier upgrade. This amplifier is the most flexible in terms of system expansion. It can be used to drive four full-range speakers, four full-range speakers and a subwoofer, a
mid and tweeter set or more. A four channel amp
rarely needs to be replaced as a customers system expands over the years, adding value to the
purchase.
CEA-2006 Compliant
The Consumer Electronics Associated developed the CEA-2006 standard to provide a level
playing field in which amplifier power and S/N
Ratio specificiations can be compared equally.
All Clarion power amplifer specifications adhere
to the guidelines of the CEA-2006 specification.
The CEA-2006 specification outlines the following test criteria for amplifier power output
testing. Rated power shall be measured with all
channels driven into a specified load impedance
with a distortion level that does not exceed 1%.
The amplifier shall produce this power across a
specified frequency range (commonly 20Hz to
20kHz) and be powered by a DC power supply
of 14.4V. The S/N Ratio specification is measured with respect to an output equal to 1W,
commonly 2V in a mobile audio application.
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Product Specifications
Clarion has invested a significant amount of time
and expense ensuring that our amplifiers provide
the best possible sonic performance and excellent value. A look at the specifications associated with any of our amplifiers quickly demonstrates this dedication to purist performance.
From the extended frequency response to the low
S/N Ratios and distortion specifications, Clarion
amplifiers provide class leading performance.
Clarion takes great pride in the fact that our
amplifiers offer frequency response well beyond
the audible spectrum. This ensures perfectly
linear output with no emphasis in any region. It
also moves the phase shift commonly associated with high frequency roll-off out of the audible range. The APX4361and APX2181 feature
greater than 10Hz-50kHz frequency response
within 1dB - not the usual 3dB rating other products use.
2 Year Warranty
Clarion offers a 2-year warranty against defects
in materials and workmanship on the APX2181,
APX4361, DPX2251, DPX1851 and DPX11551
amplifiers if the product is purchased from and
installed by an authorized Clarion dealer.
PFS Crossover Charts
Please use the following charts to set the crossover frequency on the APX2181, APX4361 and
DPX2251 amplifiers.
Please use the following charts to set the crossover frequency on the DPX1851 and DPX11551
amplifiers.
Position
Position
Crossover Frequency
1....................................49
2....................................49
3....................................50
4....................................50
5....................................51
6....................................52
7....................................52
8....................................55
9....................................60
10..................................65
11..................................80
12..................................85
13..................................90
14..................................100
15..................................125
16..................................140
17..................................155
18..................................165
19..................................175
20..................................178
21..................................180
22..................................200
23..................................210
24..................................220
25..................................230
26..................................250
27..................................280
28..................................300
29..................................325
30..................................369
31..................................410
32..................................420
33..................................455
34..................................475
35..................................495
36..................................500
37..................................510
38..................................520
39..................................530
40..................................540
41..................................550
Crossover Frequency
1..................................24
2..................................24
3..................................24
4..................................24
5..................................24
6..................................25
7..................................27
8..................................30
9..................................33
10................................35
11................................40
12................................43
13................................50
14................................55
15................................60
16................................65
17................................70
18................................75
19................................77
20................................82
21................................86
22................................90
23................................95
24................................100
25................................110
26................................120
27................................125
28................................130
29................................150
30................................155
31................................160
32................................165
33................................175
34................................175
35................................180
36................................180
37................................185
38................................190
39................................195
40................................200
41................................200
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DPX Amplifier Error Codes
The APX2181, APX4361, DPX2251, DPX1851 and DPX11551 amplifiers feature computer controlled
on-board diagnostics. The chart below outlines the error message and the cause of the message.
Amp Illumination
Red End Panel LED
Blue End Panel LED
ON
OFF
ON
FLASHING
SLOW FLASH
FLASH OUT OF SYNC
OFF
Input Voltage Overload
FAST FLASH
FLASH IN SYNC
OFF
Short Circuit Detection
3 FLASHES
THREE FLASHES
OFF
Repeated Short Circuit
OFF
FLASHING
Cause
Amplifier Operating Normally
Thermal Protection Mode
Problem:
Amp is in thermal protection mode
Solution:
- Shut off system and let amp cool down.
- Check speaker load on amp, make sure it does not exceed specification
- Ensure adequate air space around the amplifier
- Ensure end panels (DPX amps) are not obstructed and limiting air flow
Problem:
Input Voltage Overload
Solution:
- Service vehicle electrical system (alternator and voltage regulator)
Problem:
Short Circuit Detection
Solution:
- Check speaker load on amp, make sure it does not exceed specification
- Check all speaker wires for short circuits
- Check all speaker wires for shorts to ground
- Replace speakers with known good units
Problem:
Repeated Short Circuit
Solution:
Resolve Short Circuit problem, disconnect amp for 15 minutes to reset.
88
Amplifiers - Specifications
DPX11551
DPX1851
1 CHANNEL HYBRID CLASS GH AMPLIFIER
1 CHANNEL HYBRID CLASS GH AMPLIFIER
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Hybrid Class GH Power Supply
Class AB Audio Path
IVS (Input Voltage Selector) Gain Control
PFS (Precise Frequency Selector) Electronic Low-Pass Crossover
(30Hz to 250Hz, 12 dB/octave)
Adjustable Subsonic Filter (10Hz to 50Hz)
Variable Bass Boost Control (0 to 15dB, 30-125Hz)
Strappable
Comlimentary Sanken Triple Darlington Output Transistors
MOSFET Power Supply Devices
Speaker Level Inputs
Double Sided FR4PC Board
On-Board Diagnostics
Gold-Plated RCA/Speaker/Power Connectors
Illuminated Amplifier Shroud
Remote Bass Control Ready (BC2 Sold Separetly)
Specifications
Number of Channels
Frequency Response (±1.0dB)
Signal-to-Noise Ratio (CEA-2006)
Noise Floor
input Impedance
Input Sensitivity
High Level Input Sensitivity
Bass Boost
Power Output @ 2 Ohms (CEA-2006)
Power Output @ 4 Ohm (CEA-2006)
Dimensions (l x w x h)
1
10 Hz to 230Hz
>63 dB
< 1mV
22 kOhms
0.2 to 0.6 V
0.6 to 2.0V
2 to 8V
0.4v to 1.2V
1.2 to 4V
4 to 16V
0 -15dB @ 45Hz
1550W
850W
16-3/4"x10-1/8"x2-3/8"
•
•
•
•
•
•
•
•
•
•
•
Hybrid Class GH Power Supply
Class AB Audio Path
IVS (Input Voltage Selector) Gain Control
PFS (Precise Frequency Selector) Electronic Low-Pass Crossover
(30Hz to 250Hz, 12 dB/octave)
Adjustable Subsonic Filter (10Hz to 50Hz)
Variable Bass Boost Control (0 to 15dB, 30-125Hz)
Strappable
Comlimentary Sanken Triple Darlington Output Transistors
MOSFET Power Supply Devices
Speaker Level Inputs
Double Sided FR4PC Board
On-Board Diagnostics
Gold-Plated RCA/Speaker/Power Connectors
Illuminated Amplifier Shroud
Remote Bass Control Ready (BC2 Sold Separetly)
Specifications
Number of Channels
Frequency Response (±1.0dB)
Signal-to-Noise Ratio (CEA-2006)
Noise Floor
Input Impedance
Input Sensitivity
High Level Input Sensitivity
Bass Boost
Power Output @ 2 Ohms (CEA-2006)
Power Output @ 4 Ohm (CEA-2006)
Dimensions (l x w x h)
1
16 Hz to 150Hz
>68 dB
< 1 mV
22 kOhms
0.2 to 0.6 V
0.6 to 2.0V
2 to 8V
0.4v to 1.2V
1.2 to 4V
4 to 16V
0 -15dB @ 45Hz
850W
460W
13-5/8"x10-1/8"x2-3/8"
89
Amplifiers - Specifications
DPX2251
APX4361
2/1 CHANNEL HYBRID CLASS GH AMPLIFIER
4/3/2 CHANNEL CLASS AB AMPLIFIER
•
•
•
•
• Class AB Audio Path
• IVS (Input Voltage Selector) Gain Control
• PFS (Precise Frequency Selector) Electronic High/Low-Pass
Crossover (50Hz to 550Hz/550Hz to 5.5kHz, 12 dB/octave)
• Variable Bass Boost Control (0 to 15dB @ 50Hz)
• Bridgeable and Mixed Mode operation
• Comlimentary Sanken Triple Darlington Output Transistors
• MOSFET Power Supply Devices
• F/R source select switch
• Speaker Level Inputs
• Double Sided FR4PC Board
• On-Board Diagnostics
• Gold-Plated RCA/Speaker/Power Connectors
• Illuminated Amplifier Shroud
•
•
•
•
•
•
•
•
•
Hybrid Class GH Power Supply
Class AB Audio Path
IVS (Input Voltage Selector) Gain Control
PFS (Precise Frequency Selector) Electronic High/Low-Pass
Crossover (50Hz to 550Hz/550Hz to 5.5kHz, 12 dB/octave)
Variable Bass Boost Control (0 to 15dB @ 50Hz)
Bridgeable and Mixed Mode operation
Comlimentary Sanken Triple Darlington Output Transistors
MOSFET Power Supply Devices
Speaker Level Inputs
Double Sided FR4PC Board
On-Board Diagnostics
Gold-Plated RCA/Speaker/Power Connectors
Illuminated Amplifier Shroud
Specifications
Number of Channels
Frequency Response (±1.0dB)
Signal-to-Noise Ratio (CEA-2006)
Noise Floor
Channel Separation
Input Impedance
Input Sensitivity
2
18 Hz to 30kHz
> 86 dB
< 1.5mV
> 70dB
22 kOhms
0.2 to 0.6 V
0.6 to 2.0V
2 to 8V
High Level Input Sensitivity
0.4v to 1.2V
1.2 to 4V
4 to 16V
Bass Boost
0 -15dB @ 45Hz
Power Output @ 4 Ohm Stereo (CEA-2006)
180W x 2
Power Output @ 2 Ohms Stereo (CEA-2006)
300W x 2
Power Output @ 4 Ohm Mono (CEA-2006)
600W x 1
Dimensions (l x w x h)
12-3/4"x10-1/8"x2-3/8"
90
Specifications
Number of Channels
Frequency Response (±1.0dB)
Signal-to-Noise Ratio (CEA-2006)
Noise Floor
Channel Separation
THD@ Rated Output
Input Impedance
Input Sensitivity
4
10 Hz to 50kHz
> 86 dB
< 2mV
>70dB
0.05 %
33 kOhms
0.2 to 0.6 V
0.6 to 2.0V
2 to 8V
High Level Input Sensitivity
0.4v to 1.2V
1.2 to 4V
4 to 16V
Bass Boost
0 -15dB @ 50Hz
Power Output @ 4 Ohm Stereo (CEA-2006)
90W x 4
Power Output @ 2 Ohms Stereo (CEA-2006)
160W x 4
Power Output @ 4 Ohm Mono (CEA-2006)
320W x 2
Dimensions (l x w x h)
12-1/4"x10-1/8"x2-3/8"
Amplifiers -Specifications
APX2181
APX1301
2/1 CHANNEL CLASS AB AMPLIFIER
1 CHANNEL CLASS AB AMPLIFIER
• Class AB Audio Path
• IVS (Input Voltage Selector) Gain Control
• PFS (Precise Frequency Selector) Electronic High/Low-Pass
Crossover (50Hz to 550Hz/550Hz to 5.5kHz, 12 dB/octave)
• Variable Bass Boost Control (0 to 15dB @ 50Hz)
• Bridgeable and Mixed Mode operation
• Comlimentary Sanken Triple Darlington Output Transistors
• MOSFET Power Supply Devices
• Speaker Level Inputs
• Double Sided FR4PC Board
• On-Board Diagnostics
• Gold-Plated RCA/Speaker/Power Connectors
• Illuminated Amplifier Shroud
• Class AB Audio Path
• Adjustable Low-Pass Crossover
(30Hz to 300Hz, 12 dB/octave)
• Selectable Bass Boost (0dB, 6dB, 12dB)
• MOSFET Power Supply Devices
• Speaker Level Inputs
• Double Sided FR4PC Board
• Gold-Plated RCA/Speaker Connectors
Specifications
Number of Channels
Frequency Response (±1.0dB)
Signal-to-Noise Ratio (CEA-2006)
Noise Floor
Channel Separation
THD@ Rated Output
Input Impedance
Input Sensitivity
2
10 Hz to 50kHz
> 86 dB
< 2mV
>70dB
0.05 %
33 kOhms
0.2 to 0.6 V
0.6 to 2.0V
2 to 8V
High Level Input Sensitivity
0.4v to 1.2V
1.2 to 4V
4 to 16V
Bass Boost
0 -15dB @ 50Hz
Power Output @ 4 Ohm Stereo (CEA-2006)
90W x 2
Power Output @ 2 Ohms Stereo (CEA-2006)
160W x 2
Power Output @ 4 Ohm Mono (CEA-2006)
320W x 1
Dimensions (l x w x h)
10"x10-1/8"x2-3/8"
Specifications
Number of Channels
Frequency Response (±1.0dB)
Signal-to-Noise Ratio (CEA-2006)
THD@ Rated Output
Input Impedance
Input Sensitivity
Bass Boost
Power Output @ 2 Ohm (CEA-2006)
Power Output @ 4 Ohms (CEA-2006)
Dimensions (l x w x h)
1
10 Hz to 300Hz
> 70 dB
<0.1 %
22 kOhms
0.2V to 5.5V
0, 6dB, 12dB
400W x 1
300W x 1
11-7/8"x11"x2-1/4"
91
Amplifiers - Specifications
APX4241
APX2121
4/3/2 CHANNEL CLASS AB AMPLIFIER
2/1 CHANNEL CLASS AB AMPLIFIER
• Class AB Audio Path
• Independantly Adjustable Front and Rear High/Low-Pass
Crossovers (30Hz to 300Hz, 12 dB/octave)
• Selectable Bass Boost (0dB, 6dB, 12dB)
• MOSFET Power Supply Devices
• Speaker Level Inputs
• Double Sided FR4PC Board
• Gold-Plated RCA/Speaker Connectors
• Class AB Audio Path
• Adjustable High/Low-Pass Crossovers (30Hz to 300Hz, 12 dB/
octave)
• Selectable Bass Boost (0dB, 6dB, 12dB)
• MOSFET Power Supply Devices
• Speaker Level Inputs
• Double Sided FR4PC Board
• Gold-Plated RCA/Speaker Connectors
Specifications
Number of Channels
4
Frequency Response (±1.0dB)
20 Hz to 30kHz
Signal-to-Noise Ratio (CEA-2006)
> 75 dB
THD@ Rated Output
<0.1 %
Input Impedance
22 kOhms
Input Sensitivity
0.2V to 5.5V
Bass Boost
0, 6dB or 12dB
Power Output @ 4 Ohms Stereo (CEA-2006)
60W x 4
Power Output @ 2 Ohms Stereo (CEA-2006)
80W x 4
Power Output @ 4 Ohms Mono (CEA-2006)
180W x 2
Dimensions (l x w x h)
11-7/8"x11"x2-1/4"
Specifications
Number of Channels
2
Frequency Response (±1.0dB)
20 Hz to 30kHz
Signal-to-Noise Ratio (CEA-2006)
> 85 dB
THD@ Rated Output
<0.1 %
Input Impedance
22 kOhms
Input Sensitivity
0.2V to 5.5V
Bass Boost
0, 6dB or 12dB
Power Output @ 4 Ohms Stereo (CEA-2006)
60W x 2
Power Output @ 2 Ohms Stereo (CEA-2006)
80W x 2
Power Output @ 4 Ohms Mono (CEA-2006)
180W x 1
Dimensions (l x w x h)
7-1/8" x 11"x2-1/4"
92
Processors - EQS746 / MCD360
EQS746
MCD360
1/2-DIN GRAPHIC EQUALIZER/CROSSOVER
3-WAY ELECTRONIC CROSSOVER
• 7-Band Graphic Equalizer
• Front panel selectable Main/Auxiliary Inputs
• Front/Rear output with fader and subwoofer output with
subwoofer level control
• Selectable Subwoofer Low-Pass Frequency at 60 or 90 Hz
• 6-Channel/7-Volt RCA Line-Level Output
• Auxiliary input sensitivity
• Blue Illumination
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Specifications
Power Source:
Frequency Response
Signal-to-Noise Ratio
Output Voltage
Center Frequencies
Specifications
Power Source:
Frequency Response
Signal-to-Noise Ratio
Separation
High-Pass Frequency Range
Dimensions (w x h x d)
14.4V DC Negative Ground
10 Hz to 50 kHz
100 dB
7.0 Vrms
50Hz, 125Hz, 125Hz,
315Hz, 750Hz, 2.2kHz,
6kHz, 16kHz
7" x 1-1/8" x 4-1/16"
18 dB/Octave Slope-Variable Crossovers
Front, Rear and Subwoofer Outputs with Level Controls
Built-in Bass EQ
Super-Flexible Design
Remote Subwoofer Level Control
Crossover-Frequency Multiplier Switch
2/4/6 Channels of Input
Separate Front and Rear Crossover Points
14.4V DC Negative Ground
10 Hz to 50 kHz
>100 dB
60dB
32 Hz to 8 kHz, Front
32 to 400 Hz, Rear
Subwoofer Equalizer Center Frequency 25 to 100 Hz
Subwoofer Equalizer Boost
0 to 18 dB
Output Voltage
5.0 Vrms
Ouput Impedance
100 Ohms
Input Impedance
20k Ohms
Crossover Slope Rate
18dB/Octave
Crossover Characteristics
Butterworth
Ouput Gain
1:2 (+6dB)
Distortion
0.01% THD at 1V
Dimensions (w x h x d)
5-1/2" x 1-3/4" x 5 -1/2"
93
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