Teenage Engineering drops knockout update for its EP-133 K.O. II sampler, bringing much-requested features like resampling, song mode and increased polyphony

K.O. II champions update OS 2.0 - YouTube K.O. II champions update OS 2.0 - YouTube
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Teenage Engineering has announced the first major OS update for its EP-133 K.O. II sampler, released in 2023, bringing resampling, song mode, sidechaining and increased polyphony to the instrument.

Dubbed the "Champions" update, OS 2.0 significantly expands the capabilities of the K.O. II with some commonly requested features that'll undoubtedly put a smile on the face of this calculator-esque sampler's fans. First up, we have expanded polyphony: EP-133 can now handle 16 mono and 12 stereo voices, a healthy increase from the 12 mono and six stereo voices it offered on launch.

EP-133's new resampling function lets you record stacks of multiple samples with effects into a new sample, opening up a host of creative possibilities for reimagining existing patterns and making it possible to free up space for additional tracks and effects by bouncing down multiple tracks into one. You're now able to sample hands-free, too.

OS 2.0 also brings with it Song Mode, a feature that allows you to chain multiple scenes together to craft structured arrangements. 99 unique song positions can be stored, each made up of scenes containing multiple patterns of up to 99 bars. Teenage Engineering points out that this means you're now able to create a song that's up to 9,801 bars in length, making EP-133 a more useful tool for extended live performances.

Good news for fans of pumping techno, as EP-133 now offers MIDI sidechaining, meaning that you're now able to use kick drums to trigger ducking on bass sounds to create a cohesive low-end with no hassle. The length and shape of the volume ducking can be tweaked as well.

That's not all: OS 2.0 brings MIDI Thru support, so the sampler can now pass MIDI information on to other machines in your set-up, along with a host of other MIDI improvements that'll make it easier to hook up EP-133 with other instruments and gear.

To download the update and check out a full list of new features, head over to Teenage Engineering's website.

Read our review of the Teenage Engineering EP-133 K.O. II.

Matt Mullen
Tech Editor

I'm MusicRadar's Tech Editor, working across everything from product news and gear-focused features to artist interviews and tech tutorials. I love electronic music and I'm perpetually fascinated by the tools we use to make it. When I'm not behind my laptop keyboard, you'll probably find me behind a MIDI keyboard, carefully crafting the beginnings of another project that I'll ultimately abandon to the creative graveyard that is my overstuffed hard drive.

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