Control Functions

3

 

 

9

 

7

 

6

 

5

 

 

 

 

 

 

STEREO

MONO

OFF

ON

 

 

OFF

ON

OFF

ON

 

 

 

 

FUSE 4 x 25A

INPUT

L

SUBWOOFER LEVEL

LOWPASS SLOPE

 

LOWPASS

 

HIGHPASS

 

 

 

 

 

 

 

 

 

 

12dB

12dB 24dB

 

350

 

350

 

 

 

 

 

 

 

 

 

 

ST

MONO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

200

Hz

185

Hz

 

 

 

 

 

 

 

 

 

 

 

 

 

50

 

20

 

MONO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.2

 

1.2

L

R

B+

B+

GND

GND

 

 

 

 

INPUT SENSITIVITY

2.6

 

0.95

Q/HP

 

 

 

 

 

 

I NPUT

REMOTE

SUBWOOFER LEVEL

 

 

 

5

 

0.7

SPEAKER OUTPUT

 

 

 

 

 

 

 

 

 

 

12.6–14.4VDC

GROUND

 

 

 

 

 

4

 

 

8

 

 

 

 

 

 

 

 

 

 

 

 

 

GT-28 Top Panel Shown

1

 

 

 

 

 

 

 

STATUS

MONO

12.6–14.4VDC

GROUND

 

 

9

 

 

B+

B+

GND

GND

 

L

R

 

 

 

ON

10

 

 

 

 

 

SAFE

 

 

 

 

2

 

 

 

 

 

 

GT-28 Front Panel Shown

1 RCA Inputs

1

RCA cables from head unit or from other line level device should be connected

 

here. Use both inputs (L and R) for stereo; use “L” input for mono.

2

2 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.

3 Input Switch

STEREO

MONO

INPUT L

In the left position, the L and R inputs go to the L and R channels of the amplifi- er. In the right position, the input is for mono operation.

4 Input Sensitivity Control

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

control counterclockwise to decrease the amplifier sensitivity.

5 Highpass Crossover Controls

To use 12dB/octave crossover, move HIGHPASS 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.)

0.2

INPUT SENSITIVITY 2.6

5

OFF

ON

 

HIGHPASS

 

350

185

Hz

20

4

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Image 4
Boston Acoustics GT-28, GT-24 manual Control Functions