Korena
Product detailSKU #1294516231294

dbx231s Dual-Channel 31-Band Graphic Equalizer

dbx
dbx 231s Dual-Channel 31-Band Graphic Equalizer
1/8

Independent shopping perspective

The Korena take

Two channels of 31-band graphic EQ for stereo mains or two monitor mixes. The choice when you need fine control of specific frequencies.

dbx 231s Dual-Channel 31-Band Graphic Equalizer product detail
Product studydbx 231s Dual-Channel 31-Band Graphic Equalizer
dbx 231s Dual-Channel 31-Band Graphic Equalizer alternate view
Alternate view

Strong match

Who this is for

  • Ringing out feedback frequencies on live monitor wedges
  • Stereo main tuning in a room with problem resonances
  • Two-mix systems where each side needs its own curve

Consider the trade-offs

When to look elsewhere

  • Small racks — this takes two spaces, not one
  • Anyone who only needs one channel; the 131s costs less
  • Set-and-forget installs where broad tone shaping is enough

What matters in use

The specifications, translated

Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.

dbx 231s Dual-Channel 31-Band Graphic Equalizer construction detail

Detail 01

31 bands per channel

Third-octave spacing lets you pull down one problem frequency without dragging its neighbors with it.

Detail 02

±6dB / ±12dB range switch

±6dB doubles your slider resolution for careful room tuning. Save ±12dB for genuinely difficult rooms.

Detail 03

Interchannel crosstalk <-90dB

The two channels stay independent, so a deep cut on one side does not smear into the other in a stereo setup.

Detail 04

3.5 inch H, 19 inch W

Two rack spaces. Plan for that — the dual 15-band 215s does two channels in one space.

Detail 05

50Hz 12dB/octave low cut

Removes stage and HVAC rumble on a switch, so you keep all 31 sliders for actual tone work.

Detail 06

THD+N <0.003%

Clean enough to leave permanently in the signal path without adding audible grit to the mix.

Final check

Know before you order

  1. 01Needs two rack spaces and about 6 inches of clearance behind the panel
  2. 02Heavier than the single-channel and 15-band models at 6.2 pounds
  3. 03Confirm your rack cabling — connections are XLR and 1/4 inch TRS
dbx 231s Dual-Channel 31-Band Graphic Equalizer close-up

Product questions

Before you decide

Straight answers to the questions shoppers most often ask about this product.

01What is the difference between this and the 215s?

Both are dual channel. This has 31 bands per channel for finer frequency control but takes two rack spaces; the 215s has 15 bands in one space.

02Can I use it in stereo?

Yes. Two matched channels with better than -90dB crosstalk between them, so left and right stay separate.

03Will it help with feedback?

Third-octave sliders let you cut close to the offending frequency rather than scooping a wide region, which keeps more of the mix intact.

04Does it need a special power supply?

No. It takes a standard IEC cable and runs on anything from 100 to 240 volts, 50 or 60Hz.

Reference

Full specifications

The complete catalog record, organized around the decisions musicians make when comparing gear.

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Category Source
detail
Tier
new
Korena Special
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