MATRIXSYNTH

Roland MKS-50 Polyphonic MIDI Synthesizer Module SN 818018

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"The MKS-50 is a rack-mount version of the Alpha Juno. It has the same synth engine and architecture, with some added features like 16 programmable chord memories, the ability to store velocity, volume, panning, de-tune, portamento and other similar parameters within each patch you create. The optional and highly recommended PG-300 will give you traditional slider type control of all editable tone parameters which include DCO (digitally controlled oscillators) LFO, bend, ENV, pulse, waveforms, noise, PW/PWM, high pass filter, VCF (filter) with freq/env/res/LFO/kybd, VCA envelope, chorus, and more...

Owner's Manual PDF:
ftp://ftp.roland.co.uk//productsupport/MKS-50/01_MKS-50_OM.pdf

ITEM DETAILS:
This MKS-50 was purchased used from Perfect Circuit Audio in January of 2013. It has been rack-mounted since purchase. There are normal scratches and wear for a 25 year old item. It is in perfect working condition. The pictures are of the actual MKS-50 up for auction. It includes the original power cable."

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LIDER-2 - RARE SOVIET ANALOG GUITAR MICRO SYNTHESIZER FX PROCESSOR

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MOOG Micromoog SN 3661 Analog Synthesizer with BASS Mod

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SN 3661 or 3667

"This is a MOOG Micromoog synthesizer that I recently had serviced and restored by Canadian Vintage Electronics. It has been outfitted with the bass mod which makes it's oscillator comparable to the Minimoog. - All keys washed and fitted with new bushings so it plays silky smooth. - New power cable and pitch ribbon. - In short this synthesizer plays and sounds better than it would have when new! Some cosmetic wear as pictured..."

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ARP ODYSSEY mk3

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"This is a great looking ARP ODYSSEY mk3 analog synthesizer that I had taken in and given a restoration and servicing by Canadian Vintage Electronics. Having dealt with many of these over the years this is one of the nicest looking and sounding I've come across, with only some minor cosmetic blemishes. Here's what I had them do to make it perform as nice as it looks: + cleaned all switches and sliders (all move freely and smoothly with no crackling) + new key bushings + bus bars polished + recapped power supply + tuned and calibrated + new slider caps.."

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MFB Module OSC-02 Triple Oscillator Eurorack Module

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"MFB Module OSC-02 - 3x voltage controlled analog oscillators, 3x waveforms (triangle, saw tooth & square) common and individual CV control, 2x pulse width modulations, internal and external hard-sync, digital ring-modulation. Width: 80mm (16TE)"

Roland GR-300 Polyphonic Guitar Synthesizer

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"Up for auction is one Roland GR-300 Polyphonic Guitar Synthesizer by the original owner. I bought this system new from Nadine’s Music in Hollywood when they were originally on Vine. It has had very little use since the 1980s. It has been tested and is in excellent working and cosmetic condition (there's a very tiny nick on the front). It still has the original protective plastic covering which was removed for the photos (see last photo)..."

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Yamaha CS01 II

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The listing has a demo video by peahix. Peahix also made some incredible Depeche Mode covers using only the Yamaha CS01 II. You can check them out here.

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Spectral Audio Neptune 2 Analog Synth 24dB Filter Input MIDI CV Gate I/O

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"Spectral Audio Neptune 2 Synthesizer with original box and power supply."

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Sequential Circuits PROPHET 5 REVISION 3.2

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via the listing: "Minor blemishes associated with normal use of a vintage keyboard. Has the larger 120 patch memory. I've been through the service manual. I've read the notes on performance and adjustment and this keyboard seems to operate within the parameters defined in the service manual. It sounds really good.. The service manual talks about temperature a great deal and performance and warm up time can have a lot to do with how hot or cold it is in your room. The studio that this item has been in since i got it is in a basement room. It stays at a very consistent 70 degrees with perfect humidity for storage. When i turn this prophet on it takes 10 seconds or so to tune itself and then goes into patch memory just like it should. I usually give it 30-45 minutes to warm up fully, and this thing sounds amazing. It tunes exactly to "A" 440hrz per the pitch reference button on the prophet and my peterson 490st strobe tuner. It also plays up and down the keyboard in tune and seems to have no problem retuning itself when needed. The pots are very clean and have good action. This item has the midi as a revision 3.2 should have. The previous owner stated that he had the keyboard re-bushed and leveled slightly. It plays very well and has no dry bushings or sticky notes.
The led lights flicker a little bit when played. This is sometimes perceived as a problem, but it's not. It actually happens on all revision 3.2 and 3.3 models. l read in the service manual that this is common for revision 3.2 because of the integrated circuit chips that were used for some of the control surfaces. The chip that controls the led display and button assemblies operates at the same frequency as the one that controls the gates on the keyboard. This means when you play the keyboard the led displays flicker slightly, not a big deal. It's within normal operation per the service manual for that to happen..."