Power, performance, and value!

The DEQ830 from Alesis is a digital, 8-channel graphic EQ housed in a one-space, rack mount enclosure. The EQ offers 30 bands of equalization, linkable or independent, with 12dB of cut or boost. The unit operates at Constant Q, a process in which the range of frequencies affected by a single band stays the same regardless of the amount of cut or boost.

Although the unit functions in the digital domain, analog-style controls are provided for instant editing of any band or combination of bands. Any of the 30 bands can be viewed on eight discrete channels at the switch of a button and any changes stored in 100 user programs. A Real-time Analyzer (RTA) mode with selectable metering allows for visual feedback of incoming and outgoing audio signals.

Audio quality is preserved using 24-bit analog to digital and digital to analog conversion with internal processing carried out using 28-bit word lengths. The DEQ830 can operate at either a +4dBu or -10dBV setting.

Features

Eight channels of independent or linkable digital graphic EQ with analog-style controls for instant editing of any band or combination of bands, plus the ability to store programs
30 center frequency bands per channel, spanning 25Hz to 20kHz in 1/3-octave increments
12dB of boost or cut with center detente
Individual Channel Level adjustment per program
100 user-definable programs, each of which holds eight channels of EQ settings
100 user-definable curves, each of which holds 30 bands of EQ settings
Individual channel level adjustment per program along with master level adjustment
LOCK function for the "set and forget" situations that prevents accidental reprogramming
AUDITION mode for automated program comparison
LINK button for quick creation of matched EQ curves
Over 350 band gain LEDs, making it easy to read EQ curves from a distance
Real-time Analyzer (RTA) mode for visual feedback of incoming and outgoing audio signals, with selectable metering modes
Signal and Clip LEDs along with easy-to-read 7-segment numeric LED display
Enhanced 24-bit sound quality with 28-bit internal processing
ADAT Optical input/output with auto-sensing of incoming digital audio
MIDI in/out for program changes and sys-ex storage

Specifications

Filter Type: Graphic, constant Q
Number of Channels: 8
Inputs

Analog: 8 x 1/4" TRS phone
Digital: 1 x TOSlink ADAT optical
MIDI: 1 x 5-pin DIN

Outputs

Analog: 8 x 1/4" TRS phone
Digital: 1 x TOSlink ADAT optical
MIDI: 1 x 5-pin DIN

Maximum Input Level: +19dBu
Frequency Bands: 30 x 8, ISO spacing
Bandwidth: 1/3 octave
Range (Boost/Cut): +/-12dB boost/cut
Maximum Output Level: +19dBu
Frequency Response: 22Hz to 22kHz, +/- 0.5dB
Dynamic Range: Not specified by manufacturer
Noise: S/N: >100dB, A-weighted
Power Requirements

100~240VAC/50-60Hz
15W maximum

Dimensions (WxDxH): 19 x 5 x 1.75" (483 x 127 x 45mm)
Weight: 3 lbs (1.4kg)
Specialties: 100 user programs

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