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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 FREQUENCY

Turning this control sets the Highpass 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.

X-OVER OUT

This crossover is fully independent. Signal can be parallel routed from

the CH 1/2 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

amplifier not equipped with its own on-board crossover for the ultimate in

system flexibility.

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 routed from the channel 1/2 INPUTS (X-OVER INPUT

SELECT button set to the "IN" position) or combined with the CH 3/4

INPUTS (X-OVER INPUT SELECT button set to the "OUT" position).

These signals can then be processed by the third (AUXILIARY) crossover.

This additional independent crossover can be used with a separate amplifier

not equipped with its own on-board crossover for the ultimate in

system flexibility.

D7152 and D7402 manual #135.p65

D7 CROSSOVER FREQUENCIES

Diamond Audio D7 Professional Reference Series Amplifiers feature fully

variable crossovers. The frequency control knobs (located in the tray on the

top of the amplifier) are labeled 50Hz when the knob is rotated fully counter-

clockwise (left) and 5kHz when rotated fully clockwise (right).

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

come up with the following rotational diagram:

HIGHPASS/LOWPASS

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

All pairs of Diamond Audio D7 amplifier channels are capable of being

bridged to a 4 Ohm mono output. Creation of the mono channel is accomp-

lished by using the left channel positive (+) output connection of the amplifier

for the speaker positive and the right channel negative (-) output connection

of the amplifier for the speaker negative.

8/30/2002, 2:24 PM