Directed Audio 1200T manual Amplifier Controls Top

AMPLIFIER CONTROLS TOP

1.ESP Port - Allows programming of the amplifier using the Bitwriter®.

2.Subsonic Frequency Hz - This control adjusts the subsonic filter cutoff (between 15-50 Hz).

3.Subsonic Filter - The IN position places the subsonic filter into the system, the OUT position takes the filter out of the system.

4.Crossover Frequency Hz - Adjusts the crossover point (50-550 Hz) for the on-board active crossover.

5.Crossover Slope Switch - Controls the roll-off rate of filter for the on- board active crossover. Switchable between 12 or 24 dB per octave. The 12 dB position functions for both mono and stereo inputs. The 24 dB position functions for mono, low pass mode only.

6.Input Gain Adjustment - Controls amplifier sensitivity and is used to match the input level of the ampli- fier to the output level of the signal source.

7.Bass Boost Adjust - 0 to 15 dB of additional bass boost. Rotating control clockwise increases bass boost.

Amp Mode Switches

8.Mono/Stereo Switch - This switch works in conjunction with the Crossover Slope switch, refer to item 5 above.

9.Crossover Select Switch - High attenuates low frequencies and is used for mid-range speakers and tweeters. Full does not attenuate any frequencies and is for full range speaker systems. Low attenuates high frequencies and is used for subwoofers speakers.

NOTE:	The 24 dB position is intended only for use with the Mode switch in the Mono position and the the Crossover switch to
	Lowpass position. If 24 dB is selected for other operating modes, asymmetrical operation of the 2 channels will result.

10 © 2004 Directed Electronics, Inc