Part of the famous Rhythm Composer family with similar tr909 colors and sharing the same PCM samples.
LAPTOP plastic chassis white and orange colors-dominating design (weight 1.5Kg). The main panel features a rotary pot for Master Tempo +16 buttons for main functions +16 pads for sound trigger and Step sequencer entries + special central mixer adjusts Volume for each instruments.
It is important to specify that the pads are not dynamic but at least they transmit assignable Midi notes (NO lengtht) in special setting "Midi mode 2". Back panel has these connections: 11 separate outputs, Main Stereo outs, Headphones out, Footswitch input for Start/Stop (same as in the panel), Trigger out (+5V), Tape I/O, Midi I/O and a Sync-24 DIN.
Power supply is external with standard Roland Boss 12V DC with negative tip in center and low amperage feed around 200 mA.
WAVETABLE is on a EPROM memory at PCM 6 bits resolution for a total of 15 samples for 12 different instruments: Kick, snare, Low-mid-High Tom, Rimshot, Cowbell Claps, Tambourine, .Hi-Hat, Crash and Ride. Some samples like Crash & Hihats or Rides are straight from Tr-909 ROM, but unlike the famous techno god, you cannot edit sounds in any way (except some moddings). Anyway these samples have pretty good dynamics as the PCM path is going to DACS stages, a LowPass analog filters + Preamplifier so the overall sound is good punchy.
SEQUENCER holds up to 64 RAM patterns + 4 songs. Programming is based on classical Roland 16 steps grid (very similar to Tr-505 and Tr-626) with Shuffle and Swing option and variable quantisation resolution. This is the kind of machine you have to learn the logic and relatives key combinations, but once you tame the beast it is a real source of rhythm improvisation and live fun!
Two different notes entry modes:
- Classical Step by step with three different ACCENT velocities (OFF, Mid and Strong)
- Realtime with optional Audio Metronome.
SYNC main tempo is set from internal clock or synchronized from three external sources: Midi clock, Tape sync or Sync at 24 ppq. The DINSYNC resolution is precise and stable, in fact is is really appreciated for a live gigs chaining other machines such as Tb303 or Tr808. This protocol is useful as Sync to Midi communication bridge! a link from past technology to modern one... well, If you consider Midi as modern.
The Trigger Out signal (generated Pulse at +5V) is triggered by the RIM SHOT and it is perfect to drive some analog
arpeggiators or sequencer like Juno 60 or Roland Sh101.
MIDI If hardware sequencers are not your cup of tea just use the plain Midi triggering: the 707 manages this protocol and relative incoming Velocity levels. Good news ends here, since there are no Midi Control Changes and NO intelligent exclusives system management.
EFFECTS NONE! Use separate instruments outputs with various external boxes such as effects or dynamics outboard for a lot of creativity.
MEMORY retained with two 1.5 stilo batteries (note: you cannot use the drum machine straight on batteries as these are only for memory purposes) and if the 707 is not used for a long period, do not forget to remove the batteries to avoid acid leakage over ICs.
Save your sounds to a 64 Kb memory cartridges model "M64C" but theses are getting pretty hard to find around. a trick is to use more common 16k model M16C but it works partially and MAY cause randomly error on your TR or even behave odd. A second backup way is the analog tape I/O data dump.
Tr727 is exactly the same machine, the only difference is the blue prints and the internal wavetable with different sounds latino- oriented.
free tr707 samples set!
TR707 reset procedure
Power on while holding TRACK WRITE and TRACK #1
- sync midi I/O
- step led sequencer
-separate outputs with mixer
- poor midi
- no sound edit
Second hand price :400 euro
"Not appreciated like tr909, but the faked-techno sound is really appreciated by connoisseur! Not to mention the excellent programmer. Getting expensive everyday more."