Boston Acoustics GT-50 manual Front and Rear Q Controls, Rear RCA Inputs, Rear Input Switch

Control Functions (cont.)

5 FRONT and REAR “Q” Controls

“Q” Control is active when the highpass crossover is engaged and is centered on the selected crossover point. The range of operation is 0.7–1.2.

dB

Q

+1.6dB

0dB

-3dB

.707 .95 1.2

t (tuned crossover frequency)

6 REAR RCA Inputs

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

7 REAR Input Switch

In the left (STEREO L-R) position, the L & R inputs go to the REAR L & R channels of the amplifier. In the right (FRONT L-R) position, the inputs are derived from the FRONT channels and sent to the REAR L & R channels of the amplifier.

67

82

STEREO FRONT

REAR INPUT

8 SUBWOOFER RCA Inputs

RCA cables marked “subwoofer” from head unit or other line level device should be connected here. Use both inputs (L & R) for dual subwoofer output from head unit. Use left (L) input only when single subwoofer output is to be connected.

78

82

9 Lowpass Slope and Crossover Controls

Select appropriate crossover slope of 12 or 24dB/octave by moving

OFFON

LOWPASS

LOWPASS SLOPE switch. Lowpass crossover frequencies are	SUBWOOFER LEVEL
adjustable from 50Hz to 350Hz by rotary control.

OFF 12dB 24dB

3 5 0

2 0 0 Hz

5 0

10SUBWOOFER Mode Switch

Move switch to left position (MONO L-R) when used with L & R subwoofer RCA outputs. Move switch to middle position (L-MONO) when used with single sub- woofer RCA outputs. Move switch to right position (NON-FADING MONO) when subwoofer signal is to be derived from front and rear channels.

MONO

L MONO

NON - FADING

MONO

5