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7

Tuning The Amplifier - Front And Rear Speakers

WARNING!

A distorted signal from the head unit sent to the amplifier can cause

loudspeaker failure at higher listening levels.

6) Input Sensitivity Control (Gain)

Slowly rotate the control clockwise (refer to the diagram on page 3) until 
maximum undistorted playing level is heard from the speakers. Listen closely for
bottoming from the speakers. If detected, rotate the input sensitivity control 
counterclockwise until it is eliminated. 

7) Crossover Controls

To achieve higher undistorted playing levels from the front or rear speakers, the
Highpass crossover must be engaged. Rotate the crossover control fully clockwise
(refer to the diagram on page 3). The highpass crossover point is now set at
200Hz. Q-Tune should be set to off. 

Slowly rotate the input sensitivity control clockwise until maximum undistorted 
playing level is heard from the speakers. Listen closely for bottoming from the
speakers. If detected, rotate the input sensitivity control counterclockwise until it is
eliminated.  Slowly rotate the highpass crossover control counterclockwise while 
listening for bottoming. You are lowering the crossover point, which means that
more bass signal is being sent to the speakers. If bottoming is detected, rotate the
input sensitivity control counterclockwise until it is eliminated and/or rotate the
Highpass crossover control clockwise to raise the crossover point.

Connection Diagram: 

akers - 80Hz Highpass

s 35Hz Highpass, and Q of 1.2

Содержание GTA 1105

Страница 1: ...High Performance 5 Channel Amplifier GTA...

Страница 2: ...x 4 N A 4 Ohm Mono 250 Watts x 2 250 Watts x 1 2 Ohm Mono N A 400 Watts x 1 Impedance Stability 2 St 4 Mono 2 Frequency Response 3dB 10Hz 50kHz 10Hz 150Hz Signal to Noise Ratio 90dB 90dB A Weighted T...

Страница 3: ...0Hz cont variable GTA RSL Port Remote Gain Speaker Output Block Front and Rear Speakers Speaker Output Block Subwoofer Status LED Blue Normal Red Fault Mode Fuses Replace with same value only refer to...

Страница 4: ...system Wire Routing Do not run the power wire near any low level signals or audio cables such as the RCAs from the head unit Noise can be introduced into the amplifier when this occurs It is helpful...

Страница 5: ...Tighten the 12v and GND terminals with the supplied 4mm hex wrench to secure the wire into the terminals If the power wire must be routed through a drilled or existing hole use a nylon panel grommet...

Страница 6: ...nt to the speaker outputs If over excursion is detected from speakers move the switch to HP and slowly rotate clockwise until over excursion is eliminated 4 Head Unit The head unit should have all con...

Страница 7: ...Rotate the crossover control fully clockwise refer to the diagram on page 3 The highpass crossover point is now set at 200Hz Q Tune should be set to off Slowly rotate the input sensitivity control clo...

Страница 8: ...ad units this will be at the end of the volume control range WARNING A distorted signal from the head unit sent to the amplifier can cause speaker failure at higher listening levels 3 Input Sensitivit...

Страница 9: ...s You may find while setting the Q Tune that over excursion may be detected in the subwoofer s lowering the Q Tune input sensitivity or raising the highpass crossover point will eliminate this Minor a...

Страница 10: ...longside power Amplifier Output Distorted Music not Recorded with Intentional Distortion Verify Source output to amplifier is not distorted Amplifier input sensitivity is correctly adjusted Amplifier...

Страница 11: ...Notes 11...

Страница 12: ...e is a trademark of Boston Acoustics Inc Specifications are subject to change without notice 2010 Boston Acoustics Inc All rights reserved Covered by patents issued and or pending 142 003890 0 Boston...

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