Directed Audio 750d 1500d manual TOP Panel Controls, TOP Panel Features, Control Panel Cover

TOP PANEL CONTROLS

1.Input Gain Adjustment - Controls the amplifier’s sensitivity and is used to match the input level of the amplifier to the output level of the signal source.

2.Crossover Frequency Adjustment - Adjusts the crossover point for the on-board low-pass crossover.

3.Subsonic Frequency Switch - Sets the cutoff point for subsonic

FIGURE 4—AMPLIFIER CONTROLS TOP

frequencies below 30Hz. Frequen- cies below 30Hz will be attenuated by 24db per octave.

4.Bass EQ Switch - Adds 8db of addi- tional boost to the subwoofer output when active.

5.Sub Phase Switch - Changes the phase of the subwoofer output by 180 degrees.

GAINFREQ

1

MIN

2

MAX 30Hz 250Hz

3

OFF ON	OFF ON
BASS EQ	SUBSONIC

4

PHASE

5

0180

TOP PANEL FEATURES

Control Panel Cover

The gain and filter controls are located under a control panel cover on top of the amplifier. The control panel cover must be removed to gain access to the gain and filter controls.

Remove/Install

Four Allen-head screws hold the control panel cover to the amplifier top panel, one at each corner. They can be removed with the wrench supplied in the hardware pack.

10 © 2003 Directed Electronics, Inc