In 2003, MC-909 was released by Roland. Its sound core is based on a series of synthesizer modules "XV", and the internal memory is limited to 272 MB. The professional device includes 800 patches, 693 waveforms, and a "SRX" expansion.
Among its distinctive features there are a big new fader for changing pitch and tempo, an enlarged display with contrast settings, and 2 "D-Beam" which act as pitch/filter "sensors" (adjustable by hand movements).
Groovebox has very convenient basic sampling functions: samples are easy both to cut and "stretch" in time without affecting the pitch. In addition, it has the function of automatic synchronization. Samples can be processed with effects of compression, reverb, 2 independent multi-effects and filters (high-pass, low-pass, band-pass).
All this is much easier when connected to a computer via USB. As for the sequencer, it consists of 16 steps. The library features 693 waveforms, where you can select a vintage synth or a bass TB-303 voice, a violin, guitar or a piano.
In the center of the layout there is a mixer which includes 8 faders and 2 rows of buttons that are responsible for all instruments and rhythm parts. All samples are individually assigned to any of the available channels, and can be muted or edited independently.