Diamond Audio Technology D7401 Installationshandbuch

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1. Specifications and Dimensions

LOWPASS ON/OFF

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

"OUT" will bypass the filter.

LOWPASS FREQUENCY

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

counterclockwise) to 5kHz (fully clockwise).

HIGHPASS ON/OFF

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

"OUT" will bypass the filter.

HIGHPASS FREQUENCY

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

counterclockwise) to 1.5kHz (fully clockwise).

Note: By engaging both Highpass and Lowpass filters and setting the desired

crossover points, a Bandpass filter can be created:

AUXILIARY CROSSOVER

Signal can be parallel routed from the INPUTS (X-OVER INPUT SELECT

button set to the "IN" position) or be directly sent to this crossover via the

AUX. X-OVER INPUT RCA jacks(X-OVER INPUT SELECT button set to

the "OUT" position). This configuration allows the AUX crossover to be used

with a separate stereo amplifier not equipped with its own on-board crossover

for the ultimate in system flexibility.

D7 CROSSOVER FREQUENCIES

Diamond Audio D7401 features fully variable crossovers. The frequency

control knobs (located in the tray on the top of the amplifier) when rotated all

the way to the left are labeled 50Hz Lowpass and 15Hz Highpass. When

rotated all the way to the right are labeled 5kHz Lowpass and 1.5kHz

Highpass.

To make basic setting of the crossover frequencies a little easier, we've

come up with the following rotational diagram:

LOWP ASS

FREQUENCY

Notice that the outer most circle of numbers (1:00, 2:00, etc.) represent

numbers as they appear on the face of a clock. The number underneath each

"hour" designation on the simulated clock face is the approximate crossover

frequency at that position.

BRIDGING

The D7401 is a mono-block (one channel) amplifier. There is no need to

"bridge" the outputs. The two sets of outputs are paralleled inside the amp for

installation convenience. This allows for a 4 Ohm load to be wired to each set

of outputs and the amp will see a 2 Ohm load. This also allows for a 2 Ohm

load to be wired to just one set of inputs (either one).

Note: It is important that a 2 Ohm minimum total speaker impedance load is

observed! If an impedance load of less than 2 Ohms is used, you will

eventually damage your amplifier and void your warranty.