---
product_id: 1505055
title: "231s Dual Channel 31-Band Equalizer"
brand: "dbx"
price: "€ 639.58"
currency: EUR
in_stock: true
reviews_count: 12
category: "Dbx"
url: https://www.desertcart.de/products/1505055-231s-dual-channel-31-band-equalizer
store_origin: DE
region: Germany
---

# 4-segment LED output metering Super quiet operation, no hum Dual 31-band EQ precision 231s Dual Channel 31-Band Equalizer

**Brand:** dbx
**Price:** € 639.58
**Availability:** ✅ In Stock

## Summary

> 🎛️ Elevate your audio game — because your sound deserves the pro’s touch!

## Quick Answers

- **What is this?** 231s Dual Channel 31-Band Equalizer by dbx
- **How much does it cost?** € 639.58 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/1505055-231s-dual-channel-31-band-equalizer)

## Best For

- dbx enthusiasts

## Why This Product

- Trusted dbx brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Versatile Connectivity:** Balanced ¼” TRS and XLR inputs/outputs ensure seamless integration with any professional rig.
- • **Switchable Boost/Cut Ranges:** Tailor your tone with flexible 6 or 12 dB boost/cut options to fit any environment.
- • **Crystal-Clear Signal Integrity:** Experience phase-pure, hum-free sound that keeps your audio imaging flawless and immersive.
- • **Pro-Level Dual 31-Band Control:** Master your sound with ultra-fine 1/3-octave frequency bands for studio-grade precision.
- • **Rugged Build with Intuitive Interface:** Feel the quality in every slider and enjoy straightforward controls designed for pros on the move.

## Overview

The dbx 231s Dual Channel 31-Band Equalizer delivers professional-grade sound shaping with dual 31-band, 1/3-octave constant Q frequency bands, switchable 6/12 dB boost/cut ranges, and a 12 dB input gain. Built for demanding environments, it features rugged construction, intuitive controls, and balanced TRS/XLR I/O. Its ultra-quiet operation and precise output metering make it a trusted choice for studios, tours, and installations, ensuring your audio is always clear, controlled, and captivating.

## Description

When the pros need an EQ, they turn to db. With a proven track record that spans four decades, dB EQs are the industry standard for touring, studios, and audio installations. With the db. heritage of revered Pro EQs, the 231s meets the needs of the most demanding sound reinforcement environments, while offering the simplicity of straightforward controls. The db. 231s includes two 31-band channels of 1/3-octave equalization, 12 dB input gain, switchable 6 dB or 12 dB boost/cut range, 20mm nonconductive sliders, an intuitive user interface, and output level metering. From its extended 10Hz to 50kHz frequency response and 112 dB dynamic range to the quality componentry and meticulous attention to detail, The 231s offers exceptional sound and rugged reliability that s you will always sound your best. Sure to find a home in the studio, on tour and with installed sound venues, The db. 231s is destined to take its rightful place in the lineage of great dB signal processors that are the professional's choice in signal processing. With such affordable quality, There's no longer any excuse for compromising your sound.

Review: Best eq i have used to date! Buying DBX to replace others YOU CAN FEEL THE QUALITY - Purchased this unit after being frustrated with a buzz sound from my sound system, when music was paused. Disconnected my "other brand" eq and the hum went away. Purchased this DBX unit after reading many reviews. VERY HAPPY. WHen i pause the music, the system is QUIET!, the EQ allows me to adjust the sound for each environment I am in. I have now purchased 2 more DBX 15 band units to replace the "rock" EQs you see in this picture. I the HUM that I thought was a ground loop IS GONE! I spent HOURS isolating the noise. Swapping cables, running ground wires to each unit etc. All along it was the CHEAP ROCK EQs causing the issue! i have 3sets of amps and speakers depending on the environment i am in. One day i could be in a small room for a 50 person wedding. the next be playing music in a parade needing people 1 city block behind me to hear the music. ............. these DBx units are GREAT Built SOLID, you can feel the quality! The unit has some weight, the sliders require force to move them. No more do i have to reset every time i pull the cover off my road case. FINAL FINDINGS * -- BEST EQ I HAVE USEd (over 5 different brands i have tried) * --- WOrth thE MONEY * --- SUPER QUIET (very important when you hit pause on music during an event due to an injury and the whole gymnasium is silent waiting for the performer to get up) * -- MY only regret is waiting to buy a quality item like this!
Review: Signal processing perfection, incredible for the price - This wonderful EQ is worth far more than it costs. The system: Levinson #39 transport/pre-amp, Levinson #31 amp, NHT 3.3 speakers, Transparent Reference XL cabling throughout. This setup has first class imaging, and it's now in the the best acoustic setting so far. Even so, it is a suburban house with furniture, rugs and display cases. Tested with Stereophile CD 1, there were several peaks and valleys, rather large in the <60Hz range. To the ear, the soundstage would shift a lot with just a little head movement. I've run the stereo in its new home long enough to know its imaging characteristics well for a number of favorites. The dbx 215s is between the pre-amp and amp. All connections are balanced. Before turning it on, the EQ was flattened so I could compare the soundstage before and after. What I hear is remarkable. Consider: audio imaging comes from waveforms whose phase is carefully preserved end-to-end. Any signal processing must, by its nature, delay the signal to do its magic. The 215s keeps wave phase perfectly aligned at all frequencies, at least as far as I could discern by ear or on the screen. There was no difference between the imaging with the EQ in or out. This clearly has sophisticated software on a fast DSP. Back to Stereophile CD 1. I agree with another review here: 15 bands is sufficient for tuning to an acoustic environment. The pass-band transitions are completely clean and phase-pure everywhere that's been tested. I've had two hours of tuning so far and know it can be improved even more. Heck, I'm in my office typing this and <30Hz freqs are propagating into the office as clearly as in the sound room. The reflections in the sound room are asymmetrical; I suppose that's true for everyone. This was managed nicely with left / right tuning, again using Stereophile #1. As the test tones move left and right, the reflective component of each side can be heard. As you adjust the 215s you can hear the changes tune out the reflections. With not much work the system now produces a luscious, tangible, smooth sound that pulls me out of the office to hear a song I know well - in a new way. The stereo is first-tier audio equipment, surprisingly brought to a higher level of performance by this remarkable little EQ at a price point unimaginable 5 years ago. Well done, dbx.

## Features

- Dual 31-band, 1/3-octave constant Q frequency bands
- Switchable boost/cut ranges of 6 or 12 dB
- Front panel bypass switch
- 12 dB input gain range
- 4-Segment LED ladders for monitoring output levels
- Inputs: ¼” TRS and female XLR (pin 2 Hot)
- Outputs: ¼” TRS and male XLR (pin 2 Hot)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004NDHZTY |
| Best Sellers Rank | #10,328 in Musical Instruments ( See Top 100 in Musical Instruments ) #7 in Equalizers & Feedback Controllers |
| Customer Reviews | 4.6 4.6 out of 5 stars (487) |
| Date First Available | February 11, 2011 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 7.9 pounds |
| Item model number | 231s |
| Product Dimensions | 19 x 6 x 3.5 inches |
| Size | 31-band |

## Images

![231s Dual Channel 31-Band Equalizer - Image 1](https://m.media-amazon.com/images/I/61AUfqz6ZFL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: Can it be used in a car?**
A: At 19" wide and several inches deep, requiring a/c power, I can't envision a situation where it would be practical to use this product in a car. Also, electrical noise from car electronics would be a factor.

**Q: If using xlr to rca connector will it make noise?**
A: rca connectors are typically noisy on any application.

**Q: Can the rack "ears" be cut off ?  I have a very strict width limit**
A: Any ears can be cut off, but I would be very careful.  If you damage the corners, the integrity of the cabinet is gone.

**Q: How is this compare to dbx 1231? Which model make less electrical noise?**
A: hum noise depending how you are feeding all your equipment, for the money I haven't had any noise issues but this is not a traveling rig, eb tec Hum ex units would be advisable as a back up

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best eq i have used to date! Buying DBX to replace others YOU CAN FEEL THE QUALITY
*by M***N on November 22, 2023*

Purchased this unit after being frustrated with a buzz sound from my sound system, when music was paused. Disconnected my "other brand" eq and the hum went away. Purchased this DBX unit after reading many reviews. VERY HAPPY. WHen i pause the music, the system is QUIET!, the EQ allows me to adjust the sound for each environment I am in. I have now purchased 2 more DBX 15 band units to replace the "rock" EQs you see in this picture. I the HUM that I thought was a ground loop IS GONE! I spent HOURS isolating the noise. Swapping cables, running ground wires to each unit etc. All along it was the CHEAP ROCK EQs causing the issue! i have 3sets of amps and speakers depending on the environment i am in. One day i could be in a small room for a 50 person wedding. the next be playing music in a parade needing people 1 city block behind me to hear the music. ............. these DBx units are GREAT Built SOLID, you can feel the quality! The unit has some weight, the sliders require force to move them. No more do i have to reset every time i pull the cover off my road case. FINAL FINDINGS * -- BEST EQ I HAVE USEd (over 5 different brands i have tried) * --- WOrth thE MONEY * --- SUPER QUIET (very important when you hit pause on music during an event due to an injury and the whole gymnasium is silent waiting for the performer to get up) * -- MY only regret is waiting to buy a quality item like this!

### ⭐⭐⭐⭐⭐ Signal processing perfection, incredible for the price
*by A***R on October 29, 2019*

This wonderful EQ is worth far more than it costs. The system: Levinson #39 transport/pre-amp, Levinson #31 amp, NHT 3.3 speakers, Transparent Reference XL cabling throughout. This setup has first class imaging, and it's now in the the best acoustic setting so far. Even so, it is a suburban house with furniture, rugs and display cases. Tested with Stereophile CD 1, there were several peaks and valleys, rather large in the <60Hz range. To the ear, the soundstage would shift a lot with just a little head movement. I've run the stereo in its new home long enough to know its imaging characteristics well for a number of favorites. The dbx 215s is between the pre-amp and amp. All connections are balanced. Before turning it on, the EQ was flattened so I could compare the soundstage before and after. What I hear is remarkable. Consider: audio imaging comes from waveforms whose phase is carefully preserved end-to-end. Any signal processing must, by its nature, delay the signal to do its magic. The 215s keeps wave phase perfectly aligned at all frequencies, at least as far as I could discern by ear or on the screen. There was no difference between the imaging with the EQ in or out. This clearly has sophisticated software on a fast DSP. Back to Stereophile CD 1. I agree with another review here: 15 bands is sufficient for tuning to an acoustic environment. The pass-band transitions are completely clean and phase-pure everywhere that's been tested. I've had two hours of tuning so far and know it can be improved even more. Heck, I'm in my office typing this and <30Hz freqs are propagating into the office as clearly as in the sound room. The reflections in the sound room are asymmetrical; I suppose that's true for everyone. This was managed nicely with left / right tuning, again using Stereophile #1. As the test tones move left and right, the reflective component of each side can be heard. As you adjust the 215s you can hear the changes tune out the reflections. With not much work the system now produces a luscious, tangible, smooth sound that pulls me out of the office to hear a song I know well - in a new way. The stereo is first-tier audio equipment, surprisingly brought to a higher level of performance by this remarkable little EQ at a price point unimaginable 5 years ago. Well done, dbx.

### ⭐⭐⭐⭐ What a happy SURPRISE ..
*by A***Y on February 20, 2024*

I installed this Eq at home .. And for an Audiofile I was quite skeptical and even in doubt that I would be satisfied .. To my surprise, this unit did exactly what I wanted to do and more .. I wanted initially to buy a room correction unit from McIntosh .. But this little guy did exactly that .. Zero hum or hiss and super clear sound … low mid and hi are just superbly separated and defined .. No need to consider really expensive audio equipment .. Well done dbx really well done ..

## Frequently Bought Together

- dbx 231s Dual Channel 31-Band Equalizer
- Cable Matters 2-Pack Premium Short XLR to XLR Cables - 3ft, Male to Female Microphone Cable, Oxygen-Free Copper (OFC) Mic Cord, Black
- dbx 266xs Professional Audio Compressor/Gate Dynamic Effects Processor with Sidechain Insert. For Portable, Tour, Studio. 1U Single Rack Space, Silver

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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-02-09*