Transistor Revolution MKII: Kontakt Drum Machine Based on TR-808 and TR-909

Wave Alchemy says the instrument's drum sounds were recorded from the original analog machines and combined into multi-layered samples. Each control on the panel scans smoothly through these samples, so a single knob turn can change the character of a sound in real time.

The developer also describes a pool of recorded variations for each sound that cycle at random each time a sound is played, which is intended to reproduce the small differences found in analog hardware. Velocity and controller data can be used to shape the sounds live, which gives a more expressive response than fixed one-shot samples.

The instrument includes a TR-style 16-track step sequencer with accent control, host sync, swing and shuffle, and a range of advanced parameter settings. A dedicated 10-track mixer offers individual processing, volume and pan for each drum sound, along with dual delay and reverb units using custom impulse responses.

The master section includes a multi-track tape machine, compression and master EQ. A modular preset browser can recall drum patterns, mixer channels and tape or master bus settings together, and 600 patterns are included.