FET Acoustic Compressor
Studio FET Compressor & Plugin
$5.99
FET Acoustic Compressor brings the warm, musical character of classic FET compression — voiced in the tradition of the Cali76 by Origin Effects and the vintage 1176 circuit it's based on — to your iPhone and iPad.
Dialed in for acoustic guitar, but equally at home on electric guitar, bass, vocals, keys, or any source that benefits from that signature FET feel. Whether you're tracking at home, mixing in a DAW, or running signal live through Loopy Pro or AUM, FET Acoustic Compressor gives your sound the punch, presence, and glue it needs.
Voiced for feel
The compression curve, soft knee, and gentle FET saturation are tuned for the transients and dynamics of acoustic strings — but that voicing translates beautifully to any instrument that needs a compressor with character. It sits, it glues, it breathes.
Full control, intuitive layout
- IN — Drive the input and push into compression
- ATTACK / RELEASE — Fast enough to catch a pick attack; slow enough to let the body bloom
- RATIO — 2:1 to 20:1 for everything from gentle leveling to heavy squash
- OUT — Trim your output level
- DRY — Blend in parallel compression for the best of both worlds
- SC HPF — High-pass the sidechain so low-end doesn't trick the detector
- Gain Reduction Meter — See exactly what's happening in real time
All-In mode
Tap the RATIO label to activate All-In — the infamous "all buttons simultaneously" trick from vintage 1176-style compressors. Ratio jumps to 100:1, the knee tightens, and asymmetric FET saturation adds the gritty, pumping character that's made this mode a go-to for aggressive sounds. A secret weapon hiding in plain sight.
Factory presets to get you started
- Compressed Fingerstyle
- Dynamic Fingerstyle
- Pop Strumming
Built for the mobile studio and stage
- AUv3 plugin — use in GarageBand, AUM, Loopy Pro, Cubasis, and any AUv3 host
- Low latency — optimized for live performance and real-time processing
- 4x oversampled processing for clean, artifact-free compression
- Designed for iPhone and iPad
*Cali76 is a trademark of Origin Effects Ltd. 1176 and UREI are trademarks of their respective owners. GarageBand is a trademark of Apple Inc. AUM is a product of Kymatica AB. Loopy Pro is a product of A Tasty Pixel. FET Acoustic Compressor is not affiliated with, endorsed by, or sponsored by any of the above companies.*
Ratings & Reviews
FET Acoustic Compressor 1.0.1 — What's New
Fixed a rare click at the end of sustained notes
Some users noticed a brief static "zip" sound at the tail end of a ringing note, most audible through IEMs. This has been fixed.
Improved CPU efficiency
The compressor now uses less processing power, giving you more headroom for the rest of your signal chain.
New About panel
Tap the logo at the top of the plugin to see version info and a link to shelbybark.com. Tap x to close.
The developer, Shelbybark LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Shelbybark LLC
- Size
- 8.8 MB
- Category
- Music
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later.
- iPhone
- Age Rating
4+
- 4+
- Copyright
- © 2026 Shelbybark, LLC
