MATRIXSYNTH

Waldorf 10 voice expansion card for Wave XT synthesizer

via this auction

Perfect Circuit Audio (RSS)

VEXP 1.0. Note the Solder Side label on the bottom.

Update via Qwave in the comments: "The expansion board added _20_ voices to the normal 10 voices of a Waldorf XT(k). So you had either the normal 10 voices or 30 voices. The very same expansion board was needed to upgrade the oldest versions of the Waldorf Qs from 16 to 32 voices."

Crumar Bit 99 - Vintage Polyphonic Synthesizer On the Sidewalk

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"This is a very warm sounding analogue synth with digitally controlled oscilators. It's great for pads/strings/basses but at the same time is also capable of sounding very 'digital/FM' like.

It has a certain uniqueness to its sounds which I think is down an unusual 'summing' that happens between the oscillators whenever you play a key, i.e. you can hit the same note in succession and the tone can change slightly on each key press. It is touch sensitive and the keyboard can be split or layered to play 2 different patches, although this does reduce the 6 voice polyphony to 3 for each patch."

Hmm... Anyone know if there is anything unique in regards to the Bit 99?

Analogue Solutions Red Square Semi Modular Analog synth

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"This is made by Analogue Solutions, and is now discontinued. it's a powerful 2 VCO/1 sub osc semi modular design which is great for interesting effects but also great basslines and leads. It can also be used as an effects processor and a MIDI to CV converter. You can play it via midi or via external cv/gate signals from another synth."

Elektron Sidstation C64 Sid synthesizer

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"Elektron Sidstation synthesizer. Based on the the 6581 SID chip in Commodore 64 computers (this uses a real SID chip, not an emulation). This has the last OS installed and comes with a PSU and manual."

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ELEKTRONIKA EM 05 Analog Soviet Synth String Machine

via this auction

"Here is some information from w_w_w_ruskeys_net:

Electronica EM - 05 is a polyphonic strings/piano EMI. It has 2 sound types: orchestral and piano. Keyboard's range is 5 octaves. The instrument has a black metal case. Controls on the front desk change sounding during playing. There is a possibility to connect an external sustain's pedal."