EQ-A is made and published by RRS, OOO. AppBrain is an independent app data site and isn't affiliated with RRS, OOO. The app name, icon, screenshots and description belong to RRS, OOO and are shown as published on the App Store.
AppBrain's verdict
Established- Rating on App Store
- 4.77
- 22 ratings
- Last updated
- December 28, 2025
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Releases
Updates seen on the App Store- Version
- 3.0.3
- Launched
- January 2020
No changelog data
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Technology
Found in the app by AppBrain- Price
- Free
- App size
- 22.3 MB
- Content rating
- Everyone
Technologies used by EQ-A
About the app and developer
About EQ-A
EQ-A is a music app developed by RRS, OOO.
User Ratings
EQ-A is rated 4.77 out of 5 stars. The rating is based on 22 ratings.
App Information
EQ-A is freely available from the App Store. The app size is 22.33 MB. The latest version available is 3.0.3. The last update was on December 28, 2025.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since January 2020.
Developer information for RRS, OOO
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Store listing
By RRS, OOO, from the App StoreDescription by RRS, OOO Written by the developer, not by AppBrain. Click to read.
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.