Teenage Engineering PO-28 robot – portable 8-bit lead synthesizer from the Pocket Operator series, featuring 15 melodic sounds, built-in drum machine, 16-step sequencer, 128 pattern slots, and 16 onboard effects.
The PO-28 robot is a compact 8-bit synthesizer designed for melodic and rhythmic creativity on the go. It features 15 high-quality synthesized lead sounds, a basic 16-sample drum machine, and 16 punch-in effects, including filters, sweeps, repeats, glitch, noise, and retrigger variations. The 16-step sequencer allows for real-time composition, chaining up to 128 patterns for full tracks. This synthesizer is powered by two AAA batteries and includes a fold-out stand for tabletop use.
Built on a high-quality single-layer PCB, the PO-28 includes a Cirrus Logic DAC, Knowles speaker, and Silabs EFM 32 Gecko microcontroller. It has a small yet clear LCD screen, two parameter knobs (A/B), and a tactile 16-button interface for triggering sounds and effects. Two 3.5 mm mini-jack connections allow for audio output and sync with other Pocket Operators, making it a powerful addition to any portable music setup.
KEY FEATURES
- Portable 8-bit synthesizer with lead sounds and drum machine
- 15 lead synth sounds and 16 drum samples
- 16 onboard effects including filters, sweeps, retriggers, glitch, and noise
- 16-step sequencer with parameter locking
- 128 pattern slots with chaining
- Cirrus Logic digital-to-analog converter
- Knowles speaker and Silabs EFM 32 Gecko microcontroller
- 2 x 3.5 mm mini-jack: audio out and sync
- 2 AAA batteries required
- LCD display and built-in folding stand
- Buttons for pattern, sound, glide, FX, write, play, and tempo control
TECHNICAL SPECIFICATIONS
- Sound engine: 8-bit digital
- Voices: 1 (monophonic)
- Drum machine: 16 samples
- Patterns: 128
- Sequencer steps: 16
- Effects: 16 punch-in FX
- Display: LCD
- Audio output: 3.5 mm mini-jack
- Sync I/O: 3.5 mm mini-jack
- Speaker: built-in Knowles speaker
- Power: 2 x AAA batteries
- Construction: single-layer PCB with folding stand
