ROLAND TR-707 (1985)

Roland tr707

Trend price : 400€

Digital drum machine based on samples and step sequencer with advanced synching options.

(weight: 1.5Kg) The main panel features 1 knob, 16 buttons, 16 non-dynamic pads and a central volume mixer for each instruments.
Back panel terminal connectors:
- 11 separate outputs
- main out
- headphones
- footswitch input for start/stop
- trigger out (+5V)
- tape intrface
- Midi interface
- sync at 24 PPQ

main core is a Hitachi HD6303X CPU manages 10 channels. Each voice has one or different assigned samples from a wavetable, sounds cannot be edited in anyway but volume mixing.

ROM contains 15 samples at 6 bits resolution: kick, snare, tom, rimshot, cowbell, crash, hihat, cymbal, ride, clap and tombourine

notes can be entered by either: realtime with metronome or step mode with a 16 steps grid.
Some recording functions:
- shuffle adjustment
- swing option
- variable quantisation resolution
- 3 accent velocities off / mid / strong

the TR-707 can be synchronized to other units in 3 different manners:
- Midi clock
- tape sync
- sync at 24 PPQ
The trigger out signal generates pulses at +5V (controlled by rimoshot) and syncs arpeggiators or sequencer like Juno-60 or SH-101

- RAM 64 patterns
- RAM 4 songs

Audio demo:

Video Clip:

video clip


OK: sync-midi / sequencer / aux outs
NOT : limited Midi / no sound edit / expensive
"Now a classic digital drum machine, not to mention the excellent programmer. "



Text , review, special demos copyright polynominal.com / Eric Pochesci