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Linear Power PA-2 AudioPath Enhancer Operation & Installation Manual

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F O R
AUDIOPATH ENHANCHER
After countless hours of analyzing the performance of existing car audio systems,
it became obvious to the engineers at LINEAR POWER™ that certain areas of
the audio spectrum consistently needed help. Something was needed to provide
optimum performance to the system whether you were listening while cruising
down the highway or sitting in traffic. A product you could use without having to
stare at tiny menus till your head exploded from trying to figure out whether you
were adjusting right rear time delay or the "Q" on the parametric EQ band
centered at 50Hz. An EQ that wouldn't blast you with screeching maximum
volume mids because you hit a bump in the road while you were trying to adjust
it. Enter the LINEAR POWER™ PA-2
improve the dynamics, clarity, versatility and overall performance of any mobile
electronics audio system. Hey, and such a novel idea... YOU CAN USE IT
WITHOUT LOOKING AT IT. Enjoy the Music!!
The PA-2
is a combination line driver/4-band EQ preamplifier with internally
©
patched or externally patched fader capability. Two stereo inputs with electronic
source select are available for systems with two audio sources. Up to six audio
outputs are available at one time to provide in-dash control of multiple amplifiers
in your installation. There are separate input gain controls for the left and right
channels, a green power LED to indicate the preamplifier is powered up, and a
red clip LED to indicate 5Vrms output level. The PA-2
is housed in a rugged, half-din chassis with plug-in power connections.
T H E
L
O
V
MODEL PA-2
(1998-MSRP $399.00)
OPERATION
INSTALLATION MANUAL
INTRODUCTION
. Your new preamplifier will dramatically
©
PRODUCT OVERVIEW
© 2008 Linear Power, Inc. - ALL RIGHTS RESERVED
LINEAR POWER™ is a trademark of Linear Power, Inc.
E
O
F
M
U
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has a backlit display and
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S
I
C
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Summary of Contents for Linear Power PA-2 AudioPath Enhancer

  • Page 1 INTRODUCTION After countless hours of analyzing the performance of existing car audio systems, it became obvious to the engineers at LINEAR POWER™ that certain areas of the audio spectrum consistently needed help. Something was needed to provide optimum performance to the system whether you were listening while cruising down the highway or sitting in traffic.
  • Page 2 The signal from the main output is sent to the fader control in this configuration. See Figure 1B for the internal shunt settings. For systems using an external crossover such as the LINEAR POWER™ X0-2 © (Figure 2a), the PA-2 can be configured for externally patched fader capability ©...
  • Page 3 © 2008 Linear Power, Inc. - ALL RIGHTS RESERVED LINEAR POWER™ is a trademark of Linear Power, Inc.
  • Page 4 © 2008 Linear Power, Inc. - ALL RIGHTS RESERVED LINEAR POWER™ is a trademark of Linear Power, Inc.
  • Page 5 The maximum output level on the front fader and rear fader outputs is set by the volume control. sub: 45Hz +/- 16dB EQ CONTROLS; bass: 190Hz +/- 12dB mid: 3.5kHz +/- 12dB treble: 14kHz +/- 12Db © 2008 Linear Power, Inc. - ALL RIGHTS RESERVED LINEAR POWER™ is a trademark of Linear Power, Inc.
  • Page 6 100mV RMS to 10V rms. To minimize system noise, avoid routing signal cables near power wires, power connections, speaker wires, engine alternator, or fire wall of the vehicle. © 2008 Linear Power, Inc. - ALL RIGHTS RESERVED LINEAR POWER™ is a trademark of Linear Power, Inc.
  • Page 7: Input Gain Adjustment

    EQ controls where you have set them and repeat steps 1 and 4. The clip indicator should flash occasionally on musical peaks to obtain the optimum performance with LINEAR POWER™ Amplifiers. GENERAL TROUBLESHOOTING NO SOUND: Check all signal connections.
  • Page 8: Service Or Repair

    3 4 5 5 L A N E L L L A N E, P E A R L, M S 3 9 2 0 8 (6 0 1) 9 3 2 – 8 4 7 7 © 2008 Linear Power, Inc. - ALL RIGHTS RESERVED...
  • Page 9: Specifications

    3 4 5 5 L A N E L L L A N E, P E A R L, M S 3 9 2 0 8 (6 0 1) 9 3 2 – 8 4 7 7 © 2008 Linear Power, Inc. - ALL RIGHTS RESERVED...
  • Page 10 © 2008 Linear Power, Inc. - ALL RIGHTS RESERVED LINEAR POWER™ is a trademark of Linear Power, Inc.