The EP-133 K.O. II has already become a favourite in our circle for its quick sampling workflow, expressive pads, and rugged, portable build. Now, with the launch of OS 2.0, Teenage Engineering is giving users even more reasons to keep it close at hand—adding a stack of features that feel like they’ve come straight from the community wishlist.
Key Features:
- Resampling – Turn full patterns or layered effects into new samples directly inside the unit.
- Song Mode – Sequence your scenes into full tracks without leaving the device.
- Sidechaining – Create that rhythmic ducking feel or just tighten up your mix.
- Increased Polyphony – More voices means more complex ideas without dropouts.
- Improved Sampling & MIDI Tools – Including MIDI thru, hands-free sampling, and better backup options.
K.O. II in Context
When the K.O. II landed, it filled a gap between the original Pocket Operator line and more fully-featured grooveboxes. It’s compact without being cramped, straightforward without being limiting, and it encourages messing around without punishing mistakes. A few months in, we’ve seen it show up in backpacks, jam sessions, and on stages.
OS 2.0: A Welcome Expansion
Resampling is one of those tools that seems obvious once you have it. For people who build up layers, tweak effects, and want to bounce it all into a new sound for reuse—this adds a whole new dimension.
Song Mode’s a solid step forward too. For those using the K.O. II live, or trying to build proper arrangements on the go, it takes the device from an idea box to a sketchpad for full tracks.
Sidechain compression on a $300 sampler is a nice surprise, and the added polyphony makes it much easier to stack up more complex scenes without choking the audio engine.
Refinements for Real-World Setups
The new hands-free sampling mode is perfect for anyone who wants to capture live takes without fumbling for buttons—especially if you’re looping guitar phrases or one-shot vocals. MIDI thru and expanded remote control also make it friendlier in a larger hardware setup.
The updated sample tool might not be headline-grabbing, but it’s super handy for sharing projects or stretching sounds beyond their usual limits. Anyone who’s worked with lo-fi samples or odd formats will appreciate the flexibility.
Worth the Download
If you’re already using the K.O. II, this update doesn’t just tidy up loose ends—it opens up new workflows. And if you’ve been curious about grabbing one, OS 2.0 makes it an even stronger entry in the world of portable samplers.
Grab the update and more info at teenage.engineering/products/ep-133.
