Teenage Engineering's New EP-136: A Compact Mixer That Does It All

Teenage Engineering has released the EP-136 KO Sidekick, a small two-channel mixer that works as a DJ mixer, an audio interface for computers, and a MIDI controller all in one device. It fits in your pocket — roughly 24 x 8.8 x 1.6 cm — but packs features that would normally require several separate pieces of gear.

This is the second product in Teenage Engineering's EP line, which started in late 2023 with the EP-133 KO II. The EP-133 built on the company's earlier Pocket Operator samplers, showing how Teenage Engineering takes proven designs and expands them into more powerful versions.

What's Inside the EP-136

The device has two main audio inputs (3.5mm stereo jacks), plus an aux input, and outputs for both main speakers and headphones. Each input channel has its own compressor — a tool that automatically keeps loud sounds from getting too loud — and you can choose from three EQ curve options to shape how the audio sounds.

For power, you can use two AAA batteries for portable use, or plug it in via USB-C for continuous operation. According to Teenage Engineering's specs, when you connect it to a computer, it appears as an 8-input, 4-output audio interface. You can also chain multiple EP-136 units together if you need more mixing channels.

The device has a small color LCD screen that shows what you're doing in different modes.

Effects and Creative Tools

Built into the EP-136 are six "knock-out" performance effects — think of these as preset effects that let you dramatically transform your sound with a single touch. There are also motion control effects that respond to how you physically move or tilt the device, similar to effects on smartphone music apps but built into physical hardware.

The EP-136 includes a built-in sequencer, which lets you program repeating patterns. It also has a 2-bar looping effects automator, meaning it can automatically change effects over time without you having to manually adjust them every moment.

Using It With Your Computer

When connected via USB-C to a Mac or Windows PC, the EP-136 acts as both an audio interface (hardware that lets your computer record and play audio) and a MIDI controller (a device that sends commands to music software). This dual role means you can use it to send audio into recording software like Ableton Live or Logic Pro, while also controlling virtual effects plugins with its physical buttons and knobs. It's like having a tactile remote control for your software setup.

The Bigger Picture

Looking at how music gear has evolved over the past twenty years, this kind of consolidation makes sense. Two decades ago, doing what the EP-136 does would have required you to carry a separate mixer, an audio interface, an effects processor, and a MIDI controller — each with its own cables and power supply. The fact that all of this now fits into a device smaller than a deck of cards shows how far the technology has come.

The EP-136 also reflects a real shift in how electronic music happens today. The line between a DJ performance and studio production has blurred. Artists often switch between performing live and making new tracks in the studio, sometimes on the same day, which means tools need to work in both contexts.

For anyone making electronic music who values portability, the EP-136's combination of battery operation and computer connectivity is genuinely useful. You can make music on a train or in a café, then plug it into your studio setup without missing any core features. The question is whether the individual parts — the audio interface quality, the effects algorithms, the overall build quality — live up to devices made by companies that specialize in just one of those things.

Teenage Engineering has spent years building a devoted following through distinctive design and solid hardware. The EP-136 shows the company moving beyond being a novelty or lifestyle brand into more practical, professional territory. Whether they can keep the design appeal that made them famous while attracting musicians who just want tools that work well is still being tested in the real world.

The technical specs suggest they intend to compete seriously with established mixer and interface makers, not just occupy a design-forward corner of the market.