IK Multimedia released MixBox CS, offering a suite of 70 500-series style modules. While most modular systems revolve around synthesis and music production, 500-series modules are typically only used in mix mastering. MixBox CS is a collection of mastering effects and utilities, and is notable as the first IK app I've personally ever given a shit about.
MixBox CS arrives with AUv3, as a rack for slotting 8 effects into each Audio Unit instance.

MixBox CS
Limitless sonic options, now for iPad
MixBox CS packs 70 award-winning mixing processors and creative effects into a convenient 500-series style iPad app.
Create, compare and save your own custom channel strips or multiFX chains, or choose from over 600 presets to give your creativity a kickstart. Whether in your favorite host app or stand-alone, MixBox CS combines a massive range of effects and powerful workflow to supercharge your mixes.
Every processor offers immaculate sound, from powerful digital effects to warm, authentic physical models of classic analog gear. Divided into Amps, Channel Strips, Delays, Distortions, Dynamics, EQ, Filters, Modulations, Reverbs and Saturations, it’s easy to find just what you need. Derived from IK’s award-winning T-RackS, AmpliTube and SampleTank products, they offer the same professional sound quality in a convenient, portable app.
All 70 processors can be inserted anywhere in the chain and are easily interchangeable. Each one comes with helpful controls and features for better mixing, production, and sound design.
MixBox is AUv3 compliant to work seamlessly with other music production and recording apps. It offers a freely configurable rack with slots for up to 8 processors, plus independent gain and mix controls, plus a sidechain control for dynamics processing.
Standalone, MixBox is perfect for live mixing, allowing you to set up to 8 separate racks, each with up to 8 processors. Combine and assign these to your audio device’s inputs/outputs, adjust each one’s gain and level, and you’ll have a massive digital FX rack with up to 64 simultaneous FX. It includes a selection of built-in audio demos to use as reference tracks to audition any of the modules and presets.
To get you going quickly, MixBox CS offers a comprehensive library of more than 600 presets covering everything from live mixing to sound design, for both individual processors and whole chains. You can also create and save your own presets for each individual module, the full rack, and even the whole app’s global state as a song.
With MixBox, you can enjoy supercharges mixes and FX, wherever you are.
Features
- Create your own custom channel strips
- 70 FX from T-RackS, AmpliTube & SampleTank
- Dynamics, EQs, Filters, Modulation, Channel Strips, Saturation, Reverbs, Delays, Distortion and Amps
- 4 all-new algorithms for hall, room, plate and inverse reverbs
- Chain up to 8 processors in a single instance
- Lightning-fast workflow with all controls at your fingertips
- Save and recall entire chains, instantly
- Over 600 presets for every situation, including single processor and whole-chain presets
- Stand-alone hosts up to 8 full racks for live mixing
- Audio Player module for importing and playing back audio files
- AUv3 plug-in support
Reader Comments 16
btw the link to 500-series modules (at Sweetwater) gives a 405 Not Allowed error.
Wonder if it works on new M1 Mac?
Is anyone else experiencing that? Perhaps they had a web server issue. It is loading fine on my end.
Lol. Same here!
Loads fine today!
Most guitar-based multi-effects are modeling stompboxes and may have more limited sound quality. This seems more based on studio gear, and also has some more options for routing, like side-chaining which is usually not present in those guitar chains.
Looks like IK have pulled from lots of already existing and mature studio packages, so it takes advantage of some sophisticated code that was team-developed for desktop.
Also, most of the guitar chains I have tried have pretty wonky GUIs. This is kinda pretty, I gotta admit.
But, at the risk of sounding grumpy & repetitive, the iPad's inherent latency disqualifies it for realtime effects. So as nice as this might be, it'll just be a waste for me.
I haven't used Fabfilters, but I did load one instance of SpaceCraft and one instance of Mixbox inside AUM and it was at around 40% on average based on the Mixbox preset I loaded.