Diamond Audio Technology D5 300.2 Manual del usuario - Página 10

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CROSSOVER

All Diamond Audio D5 amplifiers employ one of the most flexible internal

crossover sections currently available in mobile audio. They feature second-

order 12dB/octave 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 D5

300.2 and 600.2 crossovers are continuously variable, lowpass from 50Hz to

5kHz, highpass from 15Hz to 1.5kHz(subsonic) or 1.5kHz to 15kHz using x10

button. Each pair of channels has an individual network that can be

configured to Highpass, Lowpass, Bandpass or All-pass by simple switch

selection. When switched off, they are completely out of the audio path. These

crossovers also feature a mono/stereo switch that when pushed in to mono will

series the two crossovers to a fourth-order 24dB/octave filter for subwoofer

systems. An 0-10dB adjustable Q is also available on the D5 300.2 and 600.2

along with a gain bypass for systems with external signal processing.

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 D5 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:

Adjust all amplifier gain controls to just above the minimum setting

(fully counterclockwise).

Using the highest quality source (usually CD) play some music and

slowly turn up the source unit until you can hear distortion. Now turn

down the volume until the distortion stops. This is your maximum

source unit level.

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

the gain to the point JUST BELOW the start of the distortion.

Repeat step 3 for all amplifiers in your system.

AUX. OUTPUT SELECT

Pushing this button "IN" selects the Aux. outputs to use the crossover settings

on the amplifier. Leaving this button "OUT" bypasses the crossover and selects

the Aux. outputs to run full range.

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