A creative new approach to sampling, the first release from Teenage Engineering's EP Series is an evolution of the PO-33 K.O! Pocket Operator. Sample, program, sequence and produce in one comapact, retro box.

*** OS 2.0 firmware update- April 2025 ***

Resampling
Song mode
Sidechain
More polyphony
More MIDI

K.O. II just got its first major OS update! Teenage Engineering have managed to pack a ton of new knockout features like resampling to remix and chop sounds, sidechain for groove control, song mode to arrange tracks of up to 9,801 bars, an optimized playback engine with increased polyphony, plus extended MIDI support.

Resampling

Sample any sound source on or off the K.O. II, process it through effects and make a brand new sample from it.

Song mode

Song mode adds the ability to chain scenes and create longer, more structured track arrangements.

Sidechaining

Sidechain allows one sound to control the volume of another, perfect for kick and bass groove control.

More polyphony

Teenage Engineering have managed to increase K.O. II's voice count, now supporting 16 mono or 12 stereo voice polyphony.

More MIDI

Pass notes between units with MIDI thru, keep your gear in sync and pair up to16 devices simultaneously.

Supplier's Notes:
Get ready for Round 2

Meet the next evolution of the world's most sold sampler. Based on the legendary PO-33 K.O!, the new EP-133 K.O. II adds more power, more sampling capabilities, a fully reworked sequencer and brand new punch-in 2.0™ effects. Introducing a workflow that lets you go from idea to track faster than ever. It's pocket operators gone pro.

The champ is here

A versatile machine with an impressive set of features, K.O. II is the new champion in and outside the studio. Unrivaled by anything in its class, this is the sampler you've always wanted.

Record sounds around you, sample your voice, favorite synths, vinyl records or whatever audio that you've got on your phone.

Sequence your samples and loops. Make use of the curated selection of drums, bass and keys that come pre-loaded on your K.O. II.

Tweak and automate things like filter, pitch and more... add stereo effects, compressor and next generation punch-in effects.

Knock out features

9 projects each with 80,000 notes
Projects contain 4 groups, each with 99 patterns
Patterns have 12 tracks for samples and midi
Variable pattern length per group (1 to 99 bars)
12 mono / 6 stereo voice polyphony
Use groups to mix and match patterns on the fly
Record and automate all 12 fader assignments
Sequence in free time or quantized with swing
Assign any pad to one of 16 midi channels
Loop mode from OB-4 with length and slide
12 pressure and velocity sensitive pads
Instantaneous time correction and erase
Slice samples live or automatically
Stereo / mono sampling at 46.875 kHz / 16-bit
Punch-in 2.0: effects (pressure sensitive)
Arrange quickly using the instant commit feature
32-bit float signal chain, 24-bit ADC / DAC
Sync io for ext. Gear. 8th, 16th note or sync24
6 built-in send FX and a master compressor
Drag and drop samples using the sample tool

The sequencer engine of the K.O. IIO provides an intuitive, fast way of building up beats and variations using 4 groups x 12 patterns. Like most DAWs, you can instantly swap patterns per group, experiment with different combos to find what beat and bass lines work together. The commit button helps you freeze a point in time and move on, adding a verse or a break. It all happens in real time while playing.

Built-in mic and speaker
USB-C
Midi output
Midi input
Sync output
Sync input
Audio input
Audio output
4x AAA batteries

One-two punch

Vintage style keys with a modern touch, combining tactility with pressure sensitivity.

10" EP format

Comes in a limited edition 10" collector's box

Tech specs:

K.O.II highlights

Sampling frequency: 46 kHz / 16-bit
Internal signal chain: 32-bit
999 sample slots
64 mb memory
Preset samples
High resolution sequencer
Built-in FX
Fader and pressure sensitive pads
Six stereo voices, twelve mono
Runs on 4x AAA batteries with the option to be powered via USB-C

Dimensions and weight

240 mm x 176 mm x 16 mm
9.45" x 6.93" x 0.63" inches
620 g / 22 oz

Stereo input

24 bit
SNR: 96 dba
Analogue gain: 0 - 12 dB
Max level: 8 DBU, 2.0 VRMS

Stereo headphone / line output

24 bit
SNR: 98 dba
Max level: 5 DBU, 1.4 VRMS

MIDI input and output
TRS type A, MMA compliant

Sync input and output
Sync 8 ppm, 16 ppm, 24 PPQN
Start / stop