# EQ-A — Classic British EQ > Classic British EQ emulation for audio production with extensive controls. (iPhone/iPad app by RRS, OOO.) - Source: https://appshunter.io/ios/app/eq-a/id1492043981 (this page in markdown: same URL + `.md`) - Developer: [RRS, OOO](https://appshunter.io/developer/1486125568) - Category: Music, Utilities - Price: Free with in-app purchases - Rating: 4.80/5 from 20 App Store ratings · 10 written reviews indexed - Age rating: 4+ - Requires: iOS 10.0 · 22 MB - Languages: American English - Released: 2020-01-02 - Data updated: 2026-08-20 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/eq-a/id1492043981/reviews.md ## What is EQ? EQ-A AUv3 plug-in — comes as time-limited Demo-version for you to try. It gives you 5 minutes of Free play time. (You can reload the EQ-A AUv3 plug-in as many times as you want, thereby you get the Demo period again and again.) Unlimited version of EQ-A AUv3 plug-in comes as In-App Purchase. The EQ-A based on Classic British EQ from the '70s. With a surprisingly wide range of tonal variations, the EQ-A is an invaluable and professional audio tool with great flexibility and excellent sonic ability. Features: • Standalone and AUv3 plug-in; • Precise port of Rack Extensions plug-in; • Modeled vintage EQ; • Four bands of classic British equalization (the mid frequency EQ sections are «peaking», while the high and low frequency sections are «shelving»); • Each band offers 4 selected frequency centers; • 15 dB of boost/cut per band; • Three high pass filters at 18 dB per octave and three low pass filters at 12 dB per octave; • Stereo (Mono), Mid or Side EQ modes; • Saturation On/Off-button; • The main of the EQ section allows four frequencies at any one time, switchable to one of four frequencies: Low Filter (Shelf): 50, 80, 100, 150 Hz; Low-Mid Filter (Bell): 250, 500, 1k, 2k Hz; High-Mid Filter (Bell): 3k, 5k, 7k, 9k Hz; High Filter (Shelf): 8k, 10k, 12k, 15k Hz; • Undo/Redo; • A/B comparison; • 2x/4x/8x Upsampling; • Macro controllers; • Built-in Gain Match; • Scalable GUI. A series of three high pass filters at 18 dB per octave and three low pass filters at 12 dB per octave are arranged at the ends of the EQ section. They are unique in that the switches can be pushed in simultaneously, offering distinct cut filter combinations with unusual filter curves. The EQ-A extends the features of the original hardware and joins the flexibility of the digital world to the character of the analog processing. Allows you to choose between equalizer modes (Stereo, Mid, Side) and remove analogue saturation from the processing circuit to deliver pure digital sound. ## Key features - Classic British EQ emulation - Four bands of equalization - High-pass and low-pass filters - Stereo, Mid, or Side EQ modes - Saturation On/Off - Undo/Redo and A/B comparison - Standalone and AUv3 plugin ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | RRS EQ-A Unlimited | $4.99 | one-time | ## Recent user reviews (10 of 10) All indexed reviews: https://appshunter.io/ios/app/eq-a/id1492043981/reviews.md ### 5/5 — professional Equlizar *2025-06-07* high quality output ### 5/5 — Sounds expensive/3D quality *2023-01-06* Don’t really know why this plugin company isn’t more popular than it is. The plugins sound excellent! I’m using them in GarageBand iOS. I bought several and do not regret it at all. They are true to the hardware they are emulating, and they have a very 3D/expensive quality to them in terms of sound. 5 stars! ### 5/5 — Great apps… *2022-10-14* …from this dev. Go RRS! These guys kill it with every app they make. IMHO they are underpriced. Sound great, easy to use, get them all! New synth kicks! ### 5/5 — Great EQ *2021-04-20* This is a wonderful EQ for iPad music creators get it and try it out Free as standalone and if you like it buy it to use it in Cubasis and GarageBand. ### 4/5 — Crashes in GarageBand *2020-05-17* Using an iPhone 8/GarageBand. For the most part I’m enjoying this app. The drum presets sound fantastic. Everything sounds great, but there’s a couple presets that keep crashing either just the track its being used in or crashes the sound of the entire song. Both have happened quite a bit in the 24 hours I have been using it. I have to restart GarageBand, sometimes twice to get sound functionality back. I believe this happens when trying to apply any of the guitar presets, there’s a few others I’ll have to keep note of when it happens again. There’s a strange dull muted pluck of some sort when the crashing occurs. Hope this helps/hope to hear back soon. ### 5/5 — Good one *2020-04-11* Updated review MM4C ### 5/5 — Bargain *2020-01-19, version 1.0.1* Sounds great ! Well worth the asking price. ### 1/5 — free *2020-01-10, version 1.0.1* If you're going to make an app and say it's free make it free don't make it every five minutes you can't use it what a joke.What are you actually giving away that's free nothing.Well all you have to do is say in the front is not free you have to buy an in app purchase.thats all.People are thinking they're getting something free then download it only have it delete it again ### 5/5 — Great EQ Port from the desktop music world *2020-01-06* Awesome to see this come to iOS / AUv3! Can’t wait to see even more from this developer! Easy to use and sounds GREAT! ### 5/5 — Good stuff *2020-01-04* Keep em coming. Very useful EQ. Thanks ## Frequently asked questions about EQ ### How can I try EQ-A for free? EQ-A offers a time-limited demo version that provides 5 minutes of free play time. You can reload the plugin multiple times to re-access the demo period. ### What does the unlimited version of EQ-A cost? The unlimited version of EQ-A is available as an in-app purchase. Specific pricing details can be found within the app's store listing. ### What kind of equalization does EQ-A offer? EQ-A features four bands of classic British equalization. The mid-frequency sections are peaking, while the high and low frequency sections are shelving, each with four selectable frequency centers. ### Can EQ-A be used on different devices? Yes, EQ-A is supported on iPhone, iPad, and iPod. It functions as both a standalone application and an AUv3 plugin. ### Does EQ-A have ads? No, EQ-A does not contain advertisements. The app is free to download with an optional in-app purchase for the full version. ### How often is EQ-A updated? The latest version, 3.0.3, was last updated on December 28, 2025. This indicates a recent update, suggesting ongoing development and support. ### What are the EQ-A's filter capabilities? EQ-A includes three high-pass filters at 18 dB per octave and three low-pass filters at 12 dB per octave. These filters can be combined for distinct cut filter effects. ### What is the age rating for EQ-A? EQ-A has an age rating of 4+, making it suitable for a wide range of users. ## Version history (last 5 releases) ### 3.0.3 — 2025-12-28 - Fixed parameters Automation bug. If you like EQ-A plug-in, please support us by rating this app in the App Store! ### 3.0.2 — 2025-12-27 - Fixed inconsistent Routings switching bug. If you like EQ-A plug-in, please support us by rating this app in the App Store! ### 3.0.1 — 2025-11-28 - Fixed plug-in startup crash in legacy iOS. ### 3.0.0 — 2025-11-16 - Implemented Gain Matching (GM) feature; - Implemented Macro-Controllers feature; - Implemented serial Groups chain feature; - Implemented User Presets feature; - Implemented SIMD optimization (experimental); - Minor bug fixes and improvements. ### 2.5.0 — 2022-11-27 - Implemented Saturation adjust knob; - Implemented GUI Scale on Pinch feature; - Implemented Presets Drop-down Menu; - Fixed parameters tweaking crash bug in some DAWs. ## Apps similar to EQ | App | Rating | Price | Category | | --- | --- | --- | --- | | [Zero Chorus](https://appshunter.io/ios/app/zero-chorus/id1056863629) | 4.2 (21) | Free | Music | | [Fair Limiter](https://appshunter.io/ios/app/fair-limiter/id6503627515) | 4.7 (7) | Free | Music | | [DubFilter](https://appshunter.io/ios/app/dubfilter/id979648058) | 4.7 (71) | Free | Music | | [GliderVerb](https://appshunter.io/ios/app/gliderverb/id887408942) | 4.6 (85) | Free | Music | | [TB GonioMeter](https://appshunter.io/ios/app/tb-goniometer/id6444903624) | 4.6 (23) | Free | Music | | [Zen AutoPan](https://appshunter.io/ios/app/zen-autopan/id6478596185) | 4.6 (14) | Free | Music | ## More apps by RRS, OOO - [EQ560](https://appshunter.io/ios/app/eq560/id1486125569) - [EQ550](https://appshunter.io/ios/app/eq550/id1507132030) - [EQ550b](https://appshunter.io/ios/app/eq550b/id1507176549) - [PolyIvoks Filter](https://appshunter.io/ios/app/polyivoks-filter/id1507649629) - [RRS EQ3](https://appshunter.io/ios/app/rrs-eq3/id1507895144) All apps by RRS, OOO: https://appshunter.io/developer/1486125568 ## Related topics [eq crossfader reverb et music](https://appshunter.io/ios/topics/eq-crossfader-reverb-et-music) --- *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 2026-08-20.*