This auction is for a used Alesis MEQ-230 is a two channel, 30 band/channel, 1/3rd octave graphic equalizer. It comes with the original power supply and you can find the manual online. There are a few marks on the casing but the front panel is in good condition.

It has relay based power-up delay switching circuit to eliminate turn-on transients in sound systems.

Each channel features 30 bands of 1/3rd octave equalization with ANSI and ISO standard center frequencies. Each band is
adjusted by a center detented fader with ±12dB of gain available, and a master fader controls system gain for that channel. Clip and
signal present LEDs, as well as a bypass switch, are also provided on each channel.

Inputs and outputs for each channel are via both 1/4" and RCA jacks. 

The unit can also be rack mounted in only 1 rack space.

FEATURES
• 2 complete 30 band 1/3 octave equalizers in 1 rack space
• Power up delay circuitry protects speakers by eliminating turn-on
transients
• ±12dB boost or cut per band
• Each channel can be bypassed individually
• Clip and signal present LEDs for each channel
• Inputs and outputs via both 1/4" phone and RCA jacks
Applications
• Feedback control in sound systems
• Feedback control in stage monitor systems
• Timbre contour of musical instruments
• Room voicing
• Special sound effects

Thanks for looking.