via
this auction
"extraordinary Mid-70's vintage analog VCO/VCF/VCA synthesizer under digital
control is an unusually expressive instrument as it features immediately
accessible, simultaneously-available aftertouch or "Touch Sensor" (aka presssure
sensitity) MULTIPLE parameters.
EXPRESSIVENESS! TOUCH / AFTERTOUCH / PRESSURE EFFECTS! Sure, others have Pitch
Bend, but here you have, at the flick of a single switch which is ideal for
performance (thus the PRO moniker): "WOW" (res filter opening/closing), "GROWL"
(LFO LF Mod), BRILLANCE, VOLUME, and of course, VIBRATO.
OVERALL TOUCH SENSITIVITY immediately accessible. GLIDE / GLISSANDO / PORTAMENTO
also immediately available via included AUTHENTIC ORIGINAL ARP FOOTSWITCH, with
immediately available GLIDE SPEED Control too! REPEAT effect, with it's own LFO
also available, instantly.
The ANALOG VCO/VCF/VCA voices are further enhanced with digitally-routing
control through thoughtful fixed format resonant filter banks, and a HP filter,
so there are actually SEVERAL seried filters. The sounds are primarily LEAD
sounds, as this is a solo, monophonic instrument. Add a little chorusing or
delay effect externally for even richer "phatt" sounds.
THREE Octave manual uses easily accessible simple contacts for easy user
maintenance.
INCLUDED: FULL ARP SERVICE MANUAL, ARP PORTAMENTO FOOTSWITCH
The design is particularly ripe for modification, and bringing out some of the
analog controls over the VCO/VCF/VCA. We've chosen to keep the design and
circuitry intact per collector's usual preference. If you are interested in
having this already-incredible Lead Synthesizer tricked out (modified) by us,
please inquire, OR we can assist you in doing yourself, but be forewarned,
mid-70's circuits have their own peculiar idiosyncracies and exotic parts
requirements for compatibility.
HERE are two photos showing all the voices. I believe the RED voices are based
on pulse and/or square waves with even harmonic content in varying ratios and
the GREEN are based on sawtooth or highly filtered (sine or triangle wave-like
haunting sounds). Remember, this is a LEAD INSTRUMENT - monophonic, no chords.
All the power is packed in AVAILABLE EXPRESSIVENESS. Take some time to learn the
extensive expressiveness parameters available on this amazing synth and you will
create incredibly organic, heartfelt, powerful sounds."
