Diamond Audio Technology D6 Series Manuel du propriétaire - Page 9

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Diamond Audio Technology D6 Series Manuel du propriétaire

D6 1000.1/1500.1

Crossovers

The D6 1000.1 and 1500.1 feature fouth-order 24dB/octave lowpass and second-order

12dB/octave subsonic Butterworth filters. These filter networks sum to a flat response at

their -3dB break points. This results in a smooth and seamless transition from one

frequency band to the next. Butterworth filters provide maximally flat frequency

responses when compared to other filter structures.

All crossover controls are mounted on the signal side of the amplifier. The D6 1000.1 and

1500.1 crossovers are continuously variable, lowpass from 50Hz to 250Hz, and a

subsonic from 15Hz to 40Hz. The D6 1000.1 and 1500.1 also feature a phase switch that

when pushed in swaps the amplifier 180 degrees out of phase.

Gain

This control matches the output voltage of the source unit or processor to the amplifier

inputs. Rotating this control to the "MIN" mark (counterclockwise) configures your D6

amplifier to accept input voltages as high as 5V RMS. This control should be set as low

as possible.

The basic procedure for setting input gains is as follows:

1. Adjust all amplifier gain controls to just above the minimum setting (fully

counterclockwise).

2. Using the highest quality source (usually CD) play some music and slowly turn up the

source unit until you can hear distortion. Now turndown the volume until the distortion

stops. This is your maximum source unit level.

3. Turn up the amplifier gain until audible distortion starts. Turn down the gain to the

point JUST BELOW the start of the distortion.

4. Repeat step 3 for all amplifiers in your system.

Subsonic Freq.

Turning this control sets the Subsonic filter point from 15Hz (fully counterclockwise) to

40Hz (fully clockwise).

D6 1000.1/1500.1

Master/Slave

Pushing this button "IN" engages the slave circuitry of the amplifier. The amplifier will

no longer accept signal from it's main RCA inputs, it will only except signal from a

master D6 mono block amplifier through the SLAVE IN RCA input. This button also

bypasses the gain on the amplifier which is controlled by the master amplifier. When

using multiple amplifiers in a "daisy chain," all amplifiers after the master must have

this button pushed "IN" for the system to work correctly. With this button "OUT" the

amplifier will run normally alone or as the master amplifier.

Phase In/Out

Pushing this button "IN" engages the Phase switch, putting the amp 180 degrees out of

phase. Pushing this button "OUT" keeps the amp in phase. In some vehicles this can

help with the timing and overall response of your system. If your woofers are not in phase

with the rest of the system it can cause bad timing and gaps in the pass band. Unlike

some Class "D" amplifiers, this option does not allow you to use two D5 Class "D's" as

one channel. Trying this can cause damage to your amplifiers and woofers.

Lowpass Freq.

Turning this control sets the Subsonic filter point from 50Hz (fully counterclockwise) to

250Hz (fully clockwise).

Crossover Freq. Diagrams

Subsonic

Lowpass