MATRIXSYNTH: Octave Plateau Cat Synthesizer SRM II Vintage Analog Synth (NOS) w/ Original Box & Docs SN G1056

Friday, April 09, 2021

Octave Plateau Cat Synthesizer SRM II Vintage Analog Synth (NOS) w/ Original Box & Docs SN G1056

via this auction

"We have been fortunate enough to acquire some New Old Stock(NOS) Cat SRM II synthesizers from Octave Plateau’s last production run in 1981. These units have never been used and were safely kept in storage since the day they were manufactured. If you’re an analog synth aficionado, don’t pass up this opportunity to buy this legendary synthesizer. Once our inventory is sold, you’ll never get a chance to get one in this condition again.

The Cat SRM II was manufactured in 1980 – 81 and is the best and final model of the Cat synthesizer series from the mid-1970s, which included the original Cat and Cat SRM. It has stable Curtis CEM3340 oscillators, an SSM 2044 filter and a digital scanning keyboard that uses a single contact per key, which is significantly more reliable than the dual-contact analog keyboard used on previous Cat models and most other analog synthesizers of the day.

We have calibrated and tested these units to assure everything works as designed. The switches, pots keyboard contacts and buss bar have been cleaned and checked. We also replaced the original press-wood sides with high-quality genuine walnut wood sides and replaced the critical calibration single-turn trimmers with high-precision multi- turn trimmers for greater stability.

SRM II features include:

Monophonic/duophonic keyboard plays two notes with memory function on second note.
Dual VCOs (CEM3340) with oscillator sync and mixable waveforms for complex tones.
Sub octaves on both VCOs for full, deep basssounds.
Four-pole LPF (SSM2044) with adjustable keyboard tracking.
Versatile modulation system to create a wide variety of sounds.
LFO (with variable delay on sine output), S&H and dual envelope generators.
White noise generator.
Extensive expansion jacks on rear panel.
Although this unit has never been used, there may be some minor cosmetic imperfections, which is how it left the factory. Please refer to the photos for cosmetic details."

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