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Alesis DEQ230 Digital Graphic Equalizer

Alesis    SKU: U190443


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This used DEQ830 Digital Graphic Equalizer comes with a Power Cable.


This equalizer is in very good condition with normal cosmetic wear, has been tested, and works great. Please see pictures for details on item condition.

Product Details

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.


  • 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

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