Diamond Audio Technology D5 300.4 Owner's Manual - Page 11

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CH 3/4 INPUT SELECT

Pushing this button "IN" selects the 2 channel mode, meaning that channels

3/4 use the channel 1/2 inputs. Leaving this button "OUT" uses the channel 3/4

input in 4 channel mode.

GAIN BYPASS SELECT

Pushing this button "IN" bypasses the gain stage on the amplifier. This is used

in systems with a pre-amp section before the amplifier or to slave the amp to

a master amplifier. Leaving this button "OUT" is the default and uses the

amplifiers gains as a normal input level match.

CH 3/4 MONO SELECT

Pushing this button "IN" combines the input signal to create a mono signal of

channels 3/4 for use with subwoofer systems. Leaving the button "OUT"

defaults the amp to normal stereo mode.

HIGHPASS FREQUENCY

Turning this control sets the Highpass crossover point from 15 Hz (fully

counterclockwise) to 1.5 kHz (fully clockwise). This can be used as a subsonic

filter if needed.

HIGHPASS ON/OFF

Pushing this button "IN" engages the Highpass filter. Pushing this button

"OUT" will bypass the filter.

HIGHPASS X 10 SELECT

Pushing this button "IN" multiplies the highpass crossover frequencies times

10, 1.5 kHz to 15 kHz. Leaving the button "OUT" uses the highpass filter

normally. (see highpass frequency section above for frequency points)

LOWPASS FREQUENCY

Turning this control sets the Lowpass crossover point from 50Hz (fully

counterclockwise) to 5kHz (fully clockwise).

LOWPASS ON/OFF

Pushing this button "IN" engages the Lowpass filter. Pushing this button

"OUT" will bypass the filter.

CROSSOVER FREQUENCY DIAGRAMS

Highpass (x10)

12:00

(8.3 kHz)

11:00

757.5 Hz

(6.9 kHz)

609 Hz

10:00

(5.6 kHz)

460.5 Hz

9:00

(4.2 kHz)

312 Hz

8:00

(2.9 kHz)

163.5 Hz

(1.5 kHz)

15 Hz

9 Diamond Audio Technology