MATRIXSYNTH: Crumar Stratus

Monday, July 21, 2008

Crumar Stratus

images via this auction
"Recently discovered at a 40+ year old music store where it has been in storage since it left the factory. Everything works. It is an extremely versatile and powerful 49 key 2 oscillator 6 note polyphonic analog synth that uses CEM chips, the same type inside the most sought-after vintage analog polysynths, so there's a very similar sound. The LFO can be routed to the VCOs, the VCF or the VCA. Available waveforms are square and sawtooth. There is a knob controlling rate and depth, and a simple ramp generator, controlling how fast the modulation affects the sound, with knobs for slope and delay. There's also an organ section with 4 drawbars and separate volume controls to determine the volume of each of 4 octaves, which can be used simultaneously with the synth sounds. The filters sound really great - the very desirable warm analog sound. The LFO can do FM, wah or tremolo. The LFO section also has adjustable slope and delay, which many similar synths didn't have. There's a button that causes the LFO to automatically do 1 octave square wave pitch modulation, which is a really useful feature. The oscillator glide can be set to single or multi trigger. There's an oscillator pitch envelope as well. Otherwise, it has all of the standard polysynth features. One unique feature is the ability for the voices to alternate between square and sawtooth waveforms at the same time. This is a cool synth that can sound really nice and would make a great addition to a vintage synth collection, as it is in pristine cosmetic and working condition. Includes the factory demo templates for Honkye Tonkye Strings, Brass Poly Decay and Filter Sweeping Inverted Envelope.
Check out the original factory demo and spec info at: link"

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