RMC Midi System
Poly-Drive I

The sensor saddles are preamplified & equalized separately, and fed to pins
1-6 of the DIN connector. The separate string signals are alos mixed and further
equalized to produce the Saddles Mix signal. The Mag pickups are buffered and
then can be blended with the Saddles Mix and passed through TONE and VOLUME
controls to produce a Mono Out signal fed to pin 7 of the DIN connector and
possibly to a 1/4" phone jack which can also be used to turn-on battery power if
desired. 
Poly-Drive II

The RMC Poly-Drive II is a 6 channel polyphonic preamp with 3-band equalizer and guitar/synth controls in a Direct Box format. The unit measures 3.5" X4.5" X2.25" and operates either from the onboard 9V battery or from bipolar phantom power (+/- & V.D.C.) typically provided by Roland guitar synths and compatible processors
The Polyphonic section of the preamp buffers teh separate string signals and routes them separately to the POLY OUT jack. The separate string signals are also combined in the 'DMX' feedback elimination circuit which produces a mono instrument signal. The mono signal is then equalized, passed through the INSTR. VOLUME control, buffered with a low output impedance Line Driver and fed to both the MONO OUT and the POLY OUT jacks.
Designed to complement the exceptional sound and versatility of the Acoustic Gold pickup, the POLY-DRIVE II is by far the best Active Electronics unit available for steel or nylon string acoustic guitar.
Housed in a separate enclosure for minimum instrument modification, it features 6 'factory equalized' string channels, feedback eliminator circuitry, a 3-band EQ with Mid-Range Frequency Select switch, and synth drive controls. Power can be supplied either internally by a single 9V battery or externally via the 13-pin DIN connector when the unit is connectd to a polyphonic processor, guitar/synth or MIDI converter.
The unit comes complete with a 6ft. multi-conductor cable and locking DIN instrument connector for easy operation and high reliability in demanding stage and studio applications. Longer cable lengths are also available at a slight surcharge.
Poly-Drive IV
Same circuitry as POLY-DRIVE II but without enclosure, cable & connector. For mounting inside the instrument. Supplied with oversize cover plate, jackplate & associated mounting hardware. Easy-to-follow installation instructions, drawings and diagrams.
This is the preamp found in the original GODIN MultiAc with synth access, which has been successfully acclaimed in the marketplace and obtained excellent reviews in all major guitar publications. Now you can upgrade your instruments to this level as well.