MATRIXSYNTH


Thursday, September 18, 2008

CGS35 Steiner Voltage Controlled HP, LP & BP Filter


YouTube via attorks
"Demonstration of Ken Stone's CGS35 Steiner Voltage Controlled HP, LP & BP Filter. Two Q106 ramp waveforms are fed into a Q112 mixer which dials are on 10. Output of Q112 is fed into LP IN, BP IN and HP IN of CGS35 Steiner Filter. Output of CGS35 goes to Q108 VCA. CGS35 is modulated by Q109 ADSR and 1V/Oct. VCA is modulated by Q109 ADSR. Knobs CGS35 from top to bottom: FREQUENCY, RESONANCE, FM1 (Q109). Left busses from top to bottom: HP IN, BP IN, LP IN. Right busses from top to bottom: FM1, FM2, OUT."

Oberheim OB-Mx

via this auction

"this 2-voice stereo analogue synthesizer is fully programmable and is controllable via MIDI. 2 VCO's.2 VCF's (Moog aswell as Oberheim), 3 LFO's. 4 Envelopes. expandable up to 12 voices."

Note the individual outs.

Jen SX 2000

images via this auction

Not the best shots again, but you definitely don't see these often. For larger shots of the Jen SX 2000, see this post.

Funny side note that nobody but myself will probably appreciate: Check out the image in the other post and note the similarity of the tiled floor and the angle of the shot. I recently noticed certain synths seem to be more photographed on certain backgrounds than others - hardwood floors, carpet, and so on. This is the second time I really noticed it. Like I said, probably only something I can appreciate... I think I've seen one too many...

Korg EXB-MOSS Z1 Synth Board for Triton


via this auction

"Korg EXB-MOSS Z1-Based Synth Board for Triton! The Triton Series can be expanded by the installation of the ultimate DSP tone generator - the 13 oscillator 6-voice MOSS (Multi-Oscillator Synthesis System) tone generator featured on the Z1. This lets you use all synthesis methods -- PCM, analog, VPM (variable phase modulation), and physical modeling ? on a single instrument. When the MOSS tone generator is installed, 128 MOSS programs are added. You can create combination programs that use multiple MOSS timbres together with HI sounds.

The MOSS sound generator consists of Voice, EG, and LFO sections. The voice section contains 2 powerful oscillator blocks OSC1/OSC2 which let you combine up to 2 of 13 types of oscillator algorithm (resonance, organ model, electric piano model, standard, ring modulation, VPM, brass model, reed model, and more), a sub oscillator, and a noise generator. The voice section also contains a filter block featuring 2 multi-mode filters that cover the range from analog synth sounds to complex sounds such as the body resonance of violin or guitar, or even human voice. To this are added 5 EG units and 4 LFO units, providing a rich variety of tonal and pitch changes for each voice.

Features
# Sound Source: 6 voices, 2 oscillators (max.) + sub oscillator + noise generator
# Oscillator Types: 13 (Standard, Ring Modulation, Cross Modulation, Oscillator Sync, VPM (Variable Phase Modulation), Comb filter oscillator, Resonance oscillator, Organ model, Electric piano model, Brass model, Reed model, Plucked string model, Bowed string model)
# Programs: 128 "

Roland VP-9000 w/ Original Box



via this auction

I believe the VP-9000 was the synth that kicked off Roland's Variphrase technology which made its way into the VariOS and then the V-Synth.

Check out this post for a link to an excellent VP-9000 resource site. Note that this post and that are the only VP-9000 posts on MATRIXSYNTH today. I post what I come across and what people send in, so that gives you an idea of how often these come up. If I remember correctly the price was very high on these and they had a number of technical issues.

Moog 50th Anniversary Watch

via this auction

bought new in 2004

ROLAND GR-300 ANALOG GUITAR SYNTHESIZER

images via this auction

KORG 770

images via this auction
"It uses Korg's genius high-pass/ low-pass filter combination and throws in some unique features (scaled noise, chorus setting on oscillator 1, 2 LFOs, oscillator cross fader, auto bend, and a flexible envelope). It also allows you to run an external sound source into its ring modulator and filter! The low key action is the best I played on a vintage synth. This 770 includes the original dust cover, owner's manual, and sound settings book (with black patch sheets)."

x0xb0x

images via this auction
"The x0xb0x is an open-source remake of the legendary Roland TB-303 analog synthesizer. This is a brand new synthesizer with non-pull components, yet its design has been fine-tuned by scores of analog enthusiasts to match the original device in every quiver. In fact in many ways it surpasses it, as it possesses modern ports like MIDI and USB.

What does it mean that the x0xb0x is open-source? It means people contributed their love and passion in creating the blueprints and have released them for everyone to see, to modify, and to reproduce. Open-source engineering leads to superior products that have fewer flaws. It is also an expression of freedom, with a capital F. I'll tell you, your hippie mom will be proud. Visit their site here.

This reification of those blueprints is true to them. No analog component has been been substituted. The rare, critical parts have been imported from England to create an uncompromised sound. Scores of enthusiasts have sought these same parts as a DIY kit, waited months for their turn on the waitlist, spent hours sorting through the five hundred components, learned to solder for their very first time, and carefully calibrated their creations through make-shift sound card scopes, hoping it would work, hoping to relive the groundbreaking sound of the TB-303. They experienced the passion, but you can save yourself the headache.

This x0xb0x has been assembled by an experienced builder and calibrated with a LeCroy 9310AL digital oscillloscope. Its sound was A/B compared to a working x0xb0x to make sure nothing was amiss."

Features:
* Pure analog voice circuitry
* Critical analog components including:
o 2SC1583, 2SC2291, 2SC945P transistors
o 2SK30AO and 2SK30AY JFETs
o AN6562 and BA6110 Op-Amps
o LA4140 Power Amplifier
o 1% Thin-film resistors
* Calibrated with high-end oscilloscope
* High-quality Lexan overlay
* Clear back panel
* Un-modded (original sound)
* Contact us for x0xio I/O and Overdrive kit
* Other features:
o MIDI Play
o PC hookup (software included)
o EEPROM for 128 banks of track memory/64 banks of pattern memory
o Computer download and upload of saved tracks/patterns
o Upgradeable firmware (preloaded latest v1.05. Will be upgraded to sokkos at customer's request)

Input/Output:
* DINSYNC (in/out)
* MIDI-in
* MIDI-out
* MIDI-thru
* CV (⅛")
* Gate (⅛")
* MIX-in (¼")
* Headphone (¼")
* Line-level out (¼")
* USB for computer interface & control

Ensoniq FIZMO Realtime Transwave Polyphonic Synth


images via this auction

"Ensoniq FIZMO Realtime Transwave Synth (serial # 10679). As this was one of the later production units, the regulator “fix” was done at the factory and replaced with the corrected MC7805CT."

Anyone confirm later Fizmo's did not have the regulator problem? If so, anyone know the cutoff point for serial numbers?
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