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4

Control Functions

RCA Inputs

RCA cables from head unit or from other line level device should be connected
here. Use both inputs (L & R) for stereo; use “L” input for mono.

Remote Input

Use the supplied FEMALE quick-connector to connect the REMOTE trigger lead
from the head unit to the amplifier. Amplifier turns “ON” when head unit is turned
“ON.” One FEMALE .210" connector is supplied with amplifier.

Input Switch

In the left position, the L & R inputs go to the L & R channels of the amplifier. In
the right position, the input is for mono operation.

Input Sensitivity Control

Turn control clockwise to increase the amplifier sensitivity to incoming signals. Turn
control counterclockwise to decrease the amplifier sensitivity.

Highpass Crossover Controls 

To  use 12dB/octave crossover, move switch to right-hand position. Highpass
crossover frequency is adjustable from 20Hz to 350Hz by rotary control. (Moving
switch to left-hand position will bypass crossover functions.)

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GT-22 Top Panel Shown

GT-22 Front Panel Shown

Содержание GT-20

Страница 1: ...GT 20 GT 22 2 Channel High Current High Power Amplifiers...

Страница 2: ...es Wiring 10 Amplifier fuses 10 Wire gauge 10 Installation fuses wiring cont 11 Power B power ground GND connection 11 Remote input connection 11 Speaker output connection 11 Installation fuses wiring...

Страница 3: ...ency Response 3dB 10Hz 95kHz 10Hz 95kHz Signal to Noise Ratio A Weighted 100dB 100dB Dimensions HxWxD 21 4x77 8x87 8 57x200x225mm 21 4x121 8x87 8 57x308x225mm GT 20 GT 22 Features 2 Channel High Curre...

Страница 4: ...ft position the L R inputs go to the L R channels of the amplifier In the right position the input is for mono operation Input Sensitivity Control Turn control clockwise to increase the amplifier sens...

Страница 5: ...he highpass crossover is engaged and is cen tered on the selected crossover point The range of operation is 0 7 1 2 Status LED Indicators GREEN indicates the normal operating condition the amplifier i...

Страница 6: ...ulti position Mounting Feet The mounting feet are designed to slide in both directions to clear installation obstructions on the mounting surface WARNING Before driving the mounting screws through any...

Страница 7: ...used together without additional hardware Wire Connection Amplifier accepts stripped wire directly into the terminal blocks Speaker outputs accept 8 gauge and the DC power and ground accept 4 gauge Ti...

Страница 8: ...n correctly the electrical system of the vehicle should be professional ly checked for overall electrical capacity When used the amplifier will increase the demand on the battery and alternator Theref...

Страница 9: ...ble Never mount an amplifier in the engine compartment of a vehicle WARNING Before driving the mounting screws through any surface be sure of what is behind that sur face Check for gas tank brake line...

Страница 10: ...wedging into position Amplifier should be mounted using the movable mounting feet and the provided mounting screws Installation Fuses Wiring Installation Amplifier Mounting cont Amplifier Fuses Altho...

Страница 11: ...se the supplied FEMALE quick connector to connect the REMOTE trig ger lead from the head unit to the amplifier Crimp connector to wire from head unit that controls remote turn on refer to head unit ow...

Страница 12: ...and should be used 2 Input Sensitivity Control Turn control all the way counterclockwise minimum position In this position the amplifier will be less sensitive to the input signal from the head unit S...

Страница 13: ...350Hz Rotate Q Control fully coun terclockwise Move crossover switch to the right ON position Slowly rotate the Input Sensitivity control clockwise until maximum undistorted playing level is heard fro...

Страница 14: ...ing be left in the 0 7 position and adjusted only after the input sensitivity and highpass crossover ranges are known Small adjustments to the Q setting are all that are required to fine tune the syst...

Страница 15: ...ative to the front loudspeakers Correct electrical phase does not always mean correct acoustic phase Swap positive and negative connections at the speaker outputs where the subwoofer is connected to t...

Страница 16: ...16 System Examples System A Full range Front Speakers fuse to battery terminal to ground 6 5LF 6 5LF System B Rear Fill Speakers fuse to battery terminal to ground 6 5LF 6 5LF...

Страница 17: ...17 System Examples cont System C Single Subwoofer 2 System D Parallel 4 Subwoofers 2 load fuse to battery terminal to ground 10 5LF 2 fuse to battery terminal to ground 10 5LF 4 10 5LF 4...

Страница 18: ...eck equipment and cables leading to amplifier Verify RCA cables are of good quality with no breakage to internal shields RCA cables from source to amplifier are not run alongside power Amplifier Outpu...

Страница 19: ...ties are to use the system according to the instructions supplied to provide safe and secure transportation to an authorized Boston Acoustics service representative and to present proof of purchase in...

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