Untitled - Legacy Audio

3. Owners Record
4. Unit Connections
6. Front Panel Controls
8. Remote Control
9. Unit Care
10. Designer’s Note
12. Specifications
The model and serial numbers are located on the rear of the unit. Record
these numbers in the spaces provided below. Refer to them when calling
upon your dealer regarding this product.
Model No. _______________________________
Serial No. _______________________________
Date of purchase: _________________________
Thank you for selecting a Legacy Audio System. Please take a few
moments to read this brief manual to insure maximum benefit from your
electronic system.
Rear Panel Connections
Be certain the Streamline and all associated equipment is turned off
before making any connections.
A. Balanced Inputs: Signal input is made through two XLR
(balanced) type connectors and six gold plated RCA (unbalanced)
type connectors. The XLR pin configuration is as follows: ground is
pin 1, positive is pin 2, and negative is pin 3.
B. Selector Inputs: Unbalanced stereo RCA jacks.
C. Tape Monitor: Signal input and output connections for a recording
D. Processor: Signal input and output connections for a audio
processor (surround sound processor, equalizer, etc.)
E. Main Outputs
F. Balanced Outputs: Signal output to your amplifier is made through
two gold plated RCA (unbalanced) type connectors and two XLR
(balanced) type connectors. The XLR pin configuration is as
follows: ground is pin 1, positive is pin 2, and negative is pin 3.
G. AC Line Input: Insert the power cord into the AC receptacle and
then connect it to an appropriate power source. The fuse can be
removed by pulling the fuse drawer out and clipping in a new one.
Once all connections are made the power switch may be set to the
on position. The Streamline may be left on as it draws a negligible
amount of power. NOTE: The AC line voltage is preset at the
factory but may be changed upon your request.
A. Volume/Balance: Audio level is controlled by this digitally switched
pot. Clockwise rotation increases level, counterclockwise rotation
decreases level. Left to right balance adjustment is accomplished
by pressing the knob once. Tapping the knob will step it through
Main, Left or Right channel adjustments.
B. dB Attenuation: Left and right volume setting is indicated by this
decibel (dB) display. When the display reads 00, maximum gain is
available; 99 is the maximum decibel attenuation. Setting the dial at
16 dB provides unity gain. A LED is located on the display panel
that lights when the VOLUME/BALANCE control is active in the
balance mode.
C. Processor Loop: For switching in an audio processor (surround
sound processor, equalizer, etc.). This follows the Tape Monitor.
D. Tape Monitor: For switching in a recording device (tape deck, mini
disc, DAT deck, etc.).
E. Mono: To sum the left and right channels.
F. Input Selector: Primary input selection between one balanced
(XLR) input and three unbalanced (RCA) inputs. NOTE: Only one
selection may be used at a time.
Remote Control
A. Input Selector: Primary input selector that cycles between one
balanced (XLR) input and three unbalanced (RCA) inputs.
B. TAPE MONITOR (Mon): For switching in a recording device (tape
deck, mini disc, DAT deck, etc.).
C. PROCESSOR (Proc): For switching in an audio processor
(surround sound processor, equalizer, etc.).
D. VOLUME UP and VOLUME DOWN: Sound level is controlled by
this button. Volume up (+) increases level (less dB attenuation).
Volume down (-) decreases level (more dB attenuation).
E. BALANCE: (CH) Press this button to control the left or right levels.
If you wish to clean your Streamline, use diluted ammonia based window
cleaner. Do not use any abrasive cleaners or chemical solvents. Take
care not to damage the aluminum faceplate, since aluminum is a medium
hardness metal and can be scratched by the careless use of tools during
the installation.
The Streamline may overheat and the finish may fade if exposed to direct
sunlight or intense heat sources for prolonged periods. Save your box and
packing material; they may be necessary for moving or shipping the unit
for servicing by the factory.
The remote controlled Legacy Streamline Preamplifier is designed with a
level of thoroughness reserved for only the finest preamplifier gain stages.
Analytical, as well as subjective design techniques are all applied in an
open-minded fashion with musical perfection as the goal.
On the face plate, the straight forward simple controls and display provide
comprehensive functionality to the user. All input selections have LEDs to
show when they are in use. A single knob controls both volume and
balance, with an LED display to show when the knob is in the balanced
mode. Settings for the volume and balance are precisely indicated by the
dB attenuation display. The input stages use FETs which are transconductance devices, meaning that an input voltage controls an output
current. This eliminates complex interactions, reducing the chance of
cable characteristics altering the sound. Differential voltage gain provides
exceptional rejection of external noise and contributes to the inherent DC
stability of the circuit. This allows direct coupling without servo circuitry.
The class A complimentary followers used to drive the preamp output are
so linear that no feedback correction is required or used. The advantage
of this stability is that transient response is preserved into a wide range of
difficult and unpredictable loads.
The supply starts with a toroidal transformer and 14,000µF of capacitance.
A reference voltage is developed by delivering a constant current to Zener
diodes. The resulting voltage is heavily filtered and delivered through class
A followers. The non-reactive low impedance and extremely wide
bandwidth yields a perfect stable power source for the gain stages.
Rear panel connectors include XLRs which have the advantage of greater
noise rejection than RCAs. The AC power entry module has a line fuse, a
spare fuse and a power switch. Since the power draw is low, the preamp
may be left on, except when installing, changing cables, or changing
system components.
Frequency Response: 0Hz to -3dB at 200 kHz
Distortion: Less than 0.1% from 10Hz to 40Hz at 6 volts peak into 600
Ohms or higher, shunted by 1000pF or less.
Gain: 16dB
Maximum Output: 12 Volts peak
Noise: More than 100dBA referenced to 1 Volt output.
Input Impedance: 20k Ohms unbalanced, 20k Ohms balanced
Output Impedance: 50 Ohms non-reactive unbalanced,
100 Ohms non-reactive balanced
Crosstalk: 70dB at 20 kHz
Power Supply: Toroidal transformer with 14,000µF of capacitance
Dimensions: H 2.5” Faceplate, 3”Overall x W 17” Faceplate,
17” Chassis x D: 12”Overall
Weight: 18 pounds
Power Consumption: 30 Watts
© 2003 Legacy Audio
150 Locust Street.
Macungie, PA 18062
Phone: 610 965 0494
Fax: 610 965 4915
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