Roland MC-307 Groovebox
The new MC-307 is the Groovebox aimed at DJs. Like the other MC's, it is a robust pattern-based sequencer/sound module with 800 patches, 40 rhythm sets and 33 effects. However there's a new "Turntable Emulation" mode which affects the pattern tempo and pitch in much the same way as a turntable's speed fader. There are even Hold and Push buttons which let you emulate the slowing, speeding, stopping or flicking of a record by hand. This lets you control and 'beat-mix' your Groovebox just as if it were a vinyl record!
The MC-307 has all the familiar sounds of a Roland Groove product, plus many new sounds, patterns and effects. There is also a new Grab switch with multi-effects (including Isolator) for creating interesting rhythmic effects. It does not, however, have the D-beam controller as the MC-505. But it does have a nice big backlit LCD display unlike any previous Groovebox.
The sequencer comprises of 7 instrument parts plus one rhythm track. Each is mute-able for dropping sounds in and out of loops on the fly! Perfect for DJs working the energy on the dance floor! The Real-time Phrase Sequencer (RPS) offers 470 instant patterns in all sorts of dance music styles!
For DJs, the MC-307 gets 5-stars. It's the ultimate performance tool for any dance music DJ! However, as a for the rest of the synth-community the MC-307 is nothing we haven't already heard before and will be of little use, especially when compared to the MC-505. The MC-307 has already been used by BT.
- Demos & Media
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Audio Clip 1 - Here are some cool techno and trance song and pattern demos.
Manual - Roland has made manuals for most of their products available as free PDF downloads.
- Specifications
- Polyphony - 64 voices
- Oscillators - 16MB sounds comprising 800 dance-oriented synth and drum instruments
- Sequencer - Sequencer:
8-parts; 240 preset patterns, 470 RPS, 200 user; 50 songs; 40,000 notes memory
Arpeggiator:
43 preset, 10 user patterns - Drums - 40 Rhythm sets plus 20 user
- Effects - 33 types; 3 independent, synchronizable effects processors
- Memory - 800 presets plus 256 user
- Keyboard - 16 pads
- Control - MIDI
- Date Produced - 2000
- Websites of Interest
- Resources & Credits
Images from Perfect Circuit Audio.
Errors or Corrections? Send them here.


Another great thing is the turntable emulation. It's great if you send out MIDI clock from the 307 to your synthesizer and then everything is synced right up and easily adjustable on the fly. Couldn't be easier.
If I lost this box I would run out and buy another one in a heartbeat. Put the time in and use it for it's strengths and you may just find it to be an integral part of your setup.