Teenage Engineering EP-133 K.O. II Firmware 2.5 - USB Audio, Auto-Chop and Arpeggiator for Beat Producers

The EP-133 K.O. II running OS 2.5, now with USB audio and equal-length auto-chop onboard.

1. USB audio in/out -- connect the K.O. II directly to your DAW or phone as a class-compliant audio interface, no extra hardware needed.
2. Equal-length auto-chop -- slices a sample into even divisions automatically, built for chopping breakbeats in one move.
3. Sample reverse -- flip any sample on a pad without leaving the device.
4. Arpeggiator -- arpeggiate samples in one-shot or legato mode from keys mode, added after repeated community requests.
5. Improved timestretching -- heavily stretched samples no longer double or skip, ported from the EP-1320.

USB audio is the headline addition. Until now, getting audio out of the K.O. II into a DAW meant running a cable into a separate interface. With 2.5, the device appears as a class-compliant audio host over USB -- stereo in and out. You can record the K.O. II output straight into Ableton Live or FL Studio without extra routing, and feed samples in from a phone or tablet in the same session.

The auto-chop feature has the most direct application for DnB producers. Chopping a break on the K.O. II previously required manual slice points. Now, equal-length auto-chop divides the sample into even divisions -- load an Amen break, pick your division count, and the pads are ready to play. Combined with the improved timestretching, stretched breaks should track tempo more cleanly at DnB tempos without artefacts on longer loops.

Worth noting: the 40-second mono sample cap is not a storage increase. Switching a pad to mono doubles available record time from 20 to 40 seconds -- useful for longer texture beds or drop atmospheres without eating into polyphony any further than necessary.