RMC Poly-Drive I

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Poly-Drive I  miniature onboard polyphonic preamp  

Super-Compact 6-Channel Polyphonic Active Electronics

Complete with all necessary hardware including pots, switches, connectors and jackplates as well as easy-to-follow wiring instructions.

Summary of Audio Functions

The 6 pickup signals from the RMC sensor saddles are preamplified & equalized separately. The buffered string signals are fed to pins 1 through 6 of the built-in DIN-13 connector. These buffered string signals are also mixed together and further equalized to produce the Saddles Mix signal. 

The Mag pickups are buffered using the internal Mag Buffer circuit. The buffered magnetics signal can be combined with the Saddles Mix signal using a BLEND control (pot). 

This combined signal is then passed through TONE and VOLUME controls to produce a Mono Guitar output signal which is fed to pin 7 of the DIN-13 connector and also to a 1/4" PHONE JACK.  The Phone Jack turns-on battery power when a regular (mono) guitar cord is inserted.

  • Internal for best instrument appearance
  • Super-Compact format: 0.9"h.  X  1.25"w.  X  1.5"d.
  • Retro-fits easily in all standard solid-body guitars
  • Excellent tracking with all Guitar to MIDI converters, including :
    Roland GR-50, GR-09, GR-1, GI-10, GR-30 & GR-33
    Yamaha G50       Axon NG-66, NGC-77 and AX-100
  • Excellent performance with the Roland VG-8, VG-88, VG-A7 and VG-99
  • Built-in 13 pin DIN output jack & mounting hardware
  • Built-in Active PIEZO MIX for blending with MAG sound
  • Built-in Magnetic Pickup (signal) buffer
  • Power: Phantom via 13-pin jack or onboard battery
  • Versatile functional design provides Ribbon Cable connections for onboard control of  MAG/PIEZO Blend,  Guitar Volume,  Guitar Tone,  Synth Volume,  Sw1/Sw2  and  Synth/Mix/Guitar 3-pos. selector switch
  • User-definable onboard controls :  preamp can function without connecting battery, controls or switches
  • Studio Quality performance 90 dB S/N typical


A little name dropping. The list of well-respected RMC guitar players is truly exceptional and includes:

Romero Lubambo
Paul Meyers
Earl Klugh
Jeff Linsky
Pat Metheny
Oscar Castro-Neves
Lee Ritenour
Ottmar Leibert
Paulo Bellinati
John Pizzarelli
Fareed Haque
John McLaughlin
Ken Hatfield
Al Dimeola
Leona Boyd
Allan Holdsworth
California Guitar Trio


two years from date of purchase

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  • 5
    Polydrive 1

    Posted by François Paradis on 2nd May 2022

    Excellent! installation complétée, livraison rapide, excellent service à la clientèle.