Dbx DriveRack PA+ Bedienungsanleitung PDF herunterladen (Seite 21)

Section 5 - Detailed Parameters

The DriveRack® PA+ offers complete editing flexibility, by offering in-depth control over every

parameter within each effect module. The following section will provide you with descriptions

and explanations of parameters within the DriveRack PA+.

5.1 Graphic EQ

The DriveRack PA+’s Graphic EQ section may be configured as a Dual Mono or linkable 28 band

graphic EQ.

EQ On/Off

Turns the GEQ on and off.

Flatten/Restore

This parameter either flattens the GEQ or restores the GEQ to the last setting before

flattening. The DriveRack PA+ allows you to leave the EQ edit window and return without

losing the edited EQ settings.

Frequency (F) 31.5Hz to 16.0kHz

This parameter allows you to select any one of the 28 available frequencies.

Gain (G) -12 to +12 dB

This parameter allows you to adjust the level of any one of the 28 bands of the GEQ in .5 dB

increments.

5.2 Advanced Feedback Suppression

The DriveRack PA+ includes the exclusive patent pending AFS® (Advanced Feedback

Suppression) feedback elimination module. Feedback is caused when a signal such as a

guitar pickup or microphone is reproduced by a speaker and is repeatedly picked up in phase

through the same pickup or microphone. The AFS uses precision frequency detection and

state-of-the-art processing to determine the exact portions of a given frequency of your

feedback that needs to be removed (instead of taking out large sections of your sound). The

AFS module of the DriveRack PA+ allows the user to optimize the elimination of feedback.

In the past, graphic equalizers were used to eliminate feedback from a system. This was an

acceptable method for eliminating feedback, but when this method was precision tested,

the result clearly showed that a single 1/3 octave EQ slider was removing approximately half

of the signal power. With AFS, the precision filters remove only a fraction of the frequency

spectrum. The diagram on the frollowing page shows AFS as opposed to competitive feedback

eliminators and conventional graphic EQs:

Section 5

Detailed Parameters

DriveRack

PA+

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Dbx DriveRack PA+ Bedienungsanleitung Seite 21