Teenage Engineering has officially rolled out OS 2.0, the first major software update for its compact yet powerful EP-133 K.O.
II sampler.Launched in late 2023, the $299 EP-133 K.O.
II quickly became a smash hit among beatmakers thanks to its compact, intuitive design, and nods to classic samplers like the Akai MPC 3000. Now, nearly a year and a half later, OS 2.0 is here to push the K.
O.II to new heights with a list of “knockout features” that broaden its capabilities and improve performance across the board.READ MORE: Is Frank Ocean teasing a comeback? Mysterious Instagram account and cryptic Billboards send fans spirallingOne key feature of TE’s latest update is resampling, which lets users sample any sound source on or off the device, process it through effects and make a brand new sample from it.
Hand-free sampling is also possible now, which means you can record instruments that require both hands (like a piano) without needing to hit record manually.The new OS also brings increased polyphony from 12 mono and six stereo sounds to 16 mono and 12 stereo sounds, allowing for denser and more expressive arrangements.Other key features include a new song mode, which makes it easier to “chain scenes and create longer, more structured track arrangements,” and sidechaining, which allows “one sound to control the volume of another” – perfect for controlling those kick and bass grooves.
For users with sprawling setups, extended MIDI support is another major win. With MIDI through and the ability to pair up to 16 devices simultaneously, the K.O.
II becomes a true centerpiece for multi-unit workflows.In our recent review of the K.O.
II (where it scored a 7/10), we highlighted the sampler’s affordable price and standout character. While it lacks the deep sculpting tools and seamless DAW integration of pricier rivals like Roland’s SP-404 MkII or Ableton’s Push/Move, it shines in personality and design.“Style can’t cover awkward feature navigation, a steep learning curve, and tiny storage,” we noted – but with OS 2.
0 addressing some of those original limitations (like the missing song mode), the K.O.II may now strike a more compelling balance between form and function for users drawn to its playful aesthetic.
Still, the K.O.II’s launch wasn’t without hiccups.
Soon after its release in November 2023, users began reporting issues with the effects fader – a problem that quickly gained traction online as “Fadergate”. Teenage Engineering co-founder David Eriksson later addressed the issue, pointing to a combination of flawed packaging dimensions and insufficient protection.“The size of the box is 10 inches, so some stores thought it was a 10-inch vinyl package and so shipped it without padding,” he told MusicTech.
“But it was also our little design flaw, we didn’t have any protection, and if something hit the packaging straight on the fader, it would break. Now that’s been changed. So we have new packaging – now, we’ve been throwing it like a frisbee at work, at the walls, like over and over.
And now it doesn’t break.”Download the new OS update and view the full release notes at Teenage Engineering.The post Teenage Engineering’s EP-133 K.
O.II just got its first major OS update – here’s what’s new appeared first on MusicTech..
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Teenage Engineering’s EP-133 K.O.II just got its first major OS update – here’s what’s new

OS 2.0 brings resampling, hands-free recording, extended MIDI support, and a major boost in polyphony to the beloved sampler.The post Teenage Engineering’s EP-133 K.O.II just got its first major OS update – here’s what’s new appeared first on MusicTech.