# ChannelEqualizer — Three Band Equalizer

> Three-band equalizer AudioUnit Extension plugin for audio processing. (iPhone/iPad app by Ryo Togawa.)

- Source: https://appshunter.io/ios/app/channelequalizer/id1513527511 (this page in markdown: same URL + `.md`)
- Developer: [Ryo Togawa](https://appshunter.io/developer/1474193056)
- Category: Music
- Price: Free
- Rating: 4.00/5 from 22 App Store ratings · 11 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.4 · 1 MB
- Languages: American English
- Released: 2020-05-19
- Data updated: 2026-08-14
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/channelequalizer/id1513527511/reviews.md

## What is ChannelEqualizer?

ChannelEqualizer is a three band EQ AudioUnit Extension plugin, developed as an add-on for VADrumSM.

ChannelEQExtension  (AUv3)

Low Shelving
- Frequency Range: 21Hz - 1092Hz
- Gain -INF - +12dB
- High Pass Filter response: 12dB / Oct

Mid Peak / Notch
- Frequency Range: 152Hz - 2409Hz
- Gain -36dB - +24dB

High Shelving
- Frequency Range: 296Hz - 21096Hz
- Gain -INF - +12dB
- Low Pass Filter response: 12dB / Oct

Host application uses system audio input as an audio source and processed audio signal is routed to the system audio output.

## Key features

- Three-band equalizer (Low, Mid, High)
- Adjustable frequency ranges
- Variable gain control
- High-pass and low-pass filters
- AudioUnit Extension (AUv3) format
- System audio input/output routing

## Recent user reviews (10 of 11)

All indexed reviews: https://appshunter.io/ios/app/channelequalizer/id1513527511/reviews.md

### 5/5 — Hey, downvoters: this isn’t for your Spotify or Audible or anything like that!

*2026-08-03*

Unsmart complaints that an AuV3 plug in doesn’t work on their AirPods or whatever, lol: READ THE DESCRIPTION! It’s not an eq for consumer audio, it’s for pro audio users like musicians and sound designers.

Read before you downvote. It’s not a good look to talk smack when you have no idea what you’re talking about. SMH…

### 1/5 — Nul

*2024-05-16*

Àchier

### 1/5 — Can’t put ‘input’.

*2023-11-21*

Free is free I guess. 

I have a fully updated os in an iPhone 11. 

Shows my apple AirPods as ‘output’. 

Nothing shown as my ‘input’. I’ve tried with Apple Music and Amazon music. 

Am I ‘barking up the wrong tree’ with my inputs/outputs?

### 5/5 — A simple free EQ

*2022-08-14*

For me to give anything less than 5 stars would be to “look a gift-horse in the mouth,” as they say. One confusing thing, though, is labeling the maximum gain as +/-1.0 when it is, according to the documentation, 12 db for the high/low and 24 db for the mid.

### 2/5 — Doesn't work

*2022-02-26*

It's very simple and set up to do exactly what I need. Unlike other apps which require me to connect them to my music libraries from other apps this connects right to my audio. This is amazing!¡! But it doesn't work😕

### 1/5 — Not A System Audio Equalizer

*2021-10-11*

There is a suspicious lack of low cost and widely available “System Audio Equalizers” This is not one. One should be built in and have spiders that will work on sound system wide. I figured that out and I’m not even a systems engineer, how incredibly short sighted!  This app only works on the microphone, not with music, book reading or other audio applications. It’s another case of that cloying combination of monopolistic practices and extreme greed that defines this ecosphere so easily seen by the rise of “subscription models.” And perhaps these limits were externally imposed. If that were not the case, wouldn’t there be a surfeit of free or low cost System Audio Equalizers?

### 1/5 — Meh

*2021-09-14*

Never got it to connect to Bluetooth. Uninstalled.

### 1/5 — Broken

*2021-02-18*

Does not work

### 5/5 — Ochi

*2021-01-14*

This is a great app, download it and hear your music been transformed.
Thanks!

### 2/5 — Doesn’t work with Airpods 2

*2020-11-09*

It can detect output device but it can’t connect. 
disappointed. :(

## Frequently asked questions about ChannelEqualizer

### What is ChannelEqualizer?

ChannelEqualizer is a three-band equalizer AudioUnit Extension plugin designed to enhance audio processing within compatible host applications. It allows users to adjust low, mid, and high frequencies with precise control.

### What are the frequency ranges for ChannelEqualizer?

ChannelEqualizer offers a frequency range of 21Hz - 1092Hz for the low shelving, 152Hz - 2409Hz for the mid peak/notch, and 296Hz - 21096Hz for the high shelving.

### What gain levels can be achieved with ChannelEqualizer?

The gain for the low and high shelving bands ranges from -INF to +12dB. The mid peak/notch band offers a wider gain range of -36dB to +24dB.

### Does ChannelEqualizer have ads?

No, ChannelEqualizer does not contain advertisements. It is a free application without any in-app purchases or ad support.

### What devices is ChannelEqualizer compatible with?

ChannelEqualizer is supported on iPhone, iPad, and iPod devices. It requires iOS 4+ and is rated for ages 4 and up.

### How often is ChannelEqualizer updated?

The latest version of ChannelEqualizer is 1.5, last updated on January 15, 2026. This indicates a relatively infrequent update schedule.

### What is the user rating for ChannelEqualizer?

ChannelEqualizer has an average rating of 3.7 stars based on 21 ratings. This suggests a mixed but generally positive user reception.

### Can ChannelEqualizer be used offline?

As an audio processing plugin that relies on system audio input and output, ChannelEqualizer is designed to function within a host application. Its offline usability would depend on the host application's capabilities.

## Version history (last 5 releases)

### 1.5 — 2026-01-15

Version 1.5 contains improvements and bug fixes.
- Support iOS 26 and iPadOS 26.

### 1.4 — 2023-09-18

Version 1.4 contains improvements and bug fixes.
- Support iOS 17 / iPadOS 17.

### 1.3 — 2022-09-09

Version 1.3 contains improvements and bug fixes.
- Support iOS 16 / iPadOS 16.

### 1.2 — 2021-09-17

Version 1.2 contains improvements and bug fixes.
- Support iOS 15 / iPadOS 15.

### 1.1 — 2020-09-18

Version 1.1 contains improvements and bug fixes.
- Support iOS 14 / iPadOS 14.

## Apps similar to ChannelEqualizer

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Boom: Bass Booster & Equalizer](https://appshunter.io/ios/app/boom-bass-booster-and-equalizer/id1065511007) | 3.8 (4,350) | Free | Music |
| [Bass Booster & Music Equalizer](https://appshunter.io/ios/app/bass-booster-and-music-equalizer/id1527331911) | 4.2 (1,321) | Free | Music |
| [Bass Booster EQ + Volume Boost](https://appshunter.io/ios/app/bass-booster-eq-plus-volume-boost/id1484073254) | 4.2 (19,497) | Free | Music |
| [Bass Booster - Audio Equalizer](https://appshunter.io/ios/app/bass-booster-audio-equalizer/id1471431235) | 4.3 (4,703) | Free | Music |
| [Equalizer Fx: Bass Booster App](https://appshunter.io/ios/app/equalizer-fx-bass-booster-app/id1084228340) | 4.2 (27,893) | Free | Music |
| [Equalizer+ HD music player](https://appshunter.io/ios/app/equalizer-plus-hd-music-player/id777191669) | 3.8 (9,346) | Free | Music |

## More apps by Ryo Togawa

- [VADrumSM](https://appshunter.io/ios/app/vadrumsm/id1474193057)
- [ChStrip](https://appshunter.io/ios/app/chstrip/id1518510831)
- [TfxEcho](https://appshunter.io/ios/app/tfxecho/id1523777426)
- [TfxMod](https://appshunter.io/ios/app/tfxmod/id1524639578)
- [TfxReverb](https://appshunter.io/ios/app/tfxreverb/id1529840178)

All apps by Ryo Togawa: https://appshunter.io/developer/1474193056

## Related topics

[harman kardon speaker](https://appshunter.io/ios/topics/harman-kardon-speaker)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-14.*