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OVERVIEW
6
1.2 FEATURES
The following is a summary of your DEQ 624’s features:
? 24-Bit Digital Signal Processing. The DEQ 624 utilizes 24-Bit resolution for accurate
processing of analog signals.
? Dual 31 Band Equalizers. Each channel of the Graphic Equalizer section of the DEQ 624 is
comprised of 31 digital EQ encoders. These digital EQ encoders are centered in 1/3
rd
octave
increments from 20 Hz to 20 kHz.
? Separate High Pass & Low Pass Filters for each channel. Each channel of the DEQ 624 is
provided separate High and Low Pass filters. The Low Pass Filter is variable from 10 kHz to 20
kHz. The High Pass Filter is variable from 10 Hz to 410 Hz.
? Expander. Both channels have separate Expanders with Ratio and Threshold controls for
minimizing system noise.
? Limiter. Each channel of the DEQ 624 is equipped with a “Brick-wall” limiter (Ratio=Inf: 1)
with a Threshold control to provide protection from extreme transients. This feature is designed to
protect the system components and the listener.
? HI Q. Selecting HI Q alters the characteristics of the equalization of the DEQ 624. The center
frequency remains fixed for both Normal Q and HI Q; however, in HI Q the effect on adjacent
frequencies is less pronounced. Normal Q is 1/3rd octave bandwidth (Q=4.32) and Hi Q is1/8th
octave bandwidth (Hi Q=11.54)
? Range. The degree of control of the digital encoders in the DEQ 624 Graphic Equalizer section
can be altered by engaging the Range control switch located in the Dynamics/Master control
section. A choice of +? / ?? dB? ??? ? ??? dB? and ??? ? ??? dB can be chosen by pressing the
Range switch. The selected Range is indicated by LED’s located at the extreme left side of the
Graphic Equalizer section. Changing the Range selection for a channel changes the range for all
EQ encoders on a channel.
? Bypass. Engaging the Bypass switch routes the signal from input to output by way of a hard-wire
bypass (On-board metering continues to monitor processed signal; not bypassed signal).
? 4 User-Programmable Presets. Four user-determined setups can be stored in the DEQ 624.
This is accomplished by storing a “snapshot” of the settings of the various controls of the front
panel of the unit into one of the four preset positions provided for this purpose. A Store switch