MATRIXSYNTH

Super Rare Vintage TBS-303 MKII Bassline Mono Synth (TB-303 clone+) SN 0399058 w/ Original Box

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I've only seen one of these go up for sale back in 2007. Note the font under TBS in the upper left matches Sequential Circuits font.

Details form the listing: "What happens when you take the basic analog synthesis engine of Roland's classic TB-303 bassline, add MIDI control, and put it in a seriously heavy-duty tabletop housing?

You end up with TBS Musical Instruments TBS-303 MKII!

These are extremely rare. My guess is this is one of the very few of these that were ever sold to the US.

Per the creator's website--

The following list represents some of the main features of the TBS-303 MarkII :

Analogue circuitry is nearly equivalent to the original
Fully discrete oscillator and filter section
Build-in MIDI interface requires no external SYNC24 syncbox
Slides programmable via Note overlap
Accents programmable via MIDI note-ON velocity value (>100)
User selectable MIDI channel
Better that the original ; 'Heavy-duty' housing and professional potentiometers
The TBS-303 is on purpose build in a desktop type housing to make real time filter-control by hand easier.
Dimensions (WxHxD): 250 x 170 x 65mm

Additional cool features:

External audio input
Infinite accent button
Infinite slide/portamento button

Please check the website for additional info and audio samples.

The sound of this box is quite awesome. The top-mounted slide/accent buttons allow for additional realtime creativity. The external input lets you use this in ways that no original TB-303 can. Best of all, the MIDI implementation gives you all kinds of sequencing possibilities that you didn't have with the original.

Sure, you can make it sound just like a TB-303-- or you can use it in new and creative ways."

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Roland TB-303 Bassline Synthesizer with Social Entropy Quicksilver upgrade midi

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"This Roland TB-303 has the desirable Quicksilver upgrade by Social Entropy, which includes midi and other enhancements. The Quicksilver 303 is equipped with USB connectivity for OS upgrades and USB MIDI. Allowing the Quicksilver 303 to be directly connected to a USB host! Because all data is stored into internal EEPROM, batteries are no longer required to maintain memory. All internal memory can also be dumped using MIDI sysex messages for sharing or backup. More info"

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Roland PG-200 Controller for JX-3P / MKS-30 SN 347300 w/ Original Box

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Roland Jupiter 6 w/ Europa Mod & Hard Case SN 343566

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"Functional problem:
The 5th voice on VCO 2 is bad. Some patches it’s completely dead and other patches it sounds a little off from the other voice chips.
It was completely dead before so I replaced the amp, and voice chips."

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Percussa SSP (Super Signal Processor)

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This is the first one I've seen on the second hand market.

Ciat Lonbarde Shbobo Shnth

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"This is a unique and wonderful synth made by the electronic wizard Peter Blasser. It has preset sounds loaded but you can program your own from you computer using the FISH editor. You play it by gently squeezing the wooden bars that then send out digital information to the onboard ARM Cortex M3 32 bit processor. There are antennae on the bottom that sense flesh and distance. The buttons can also be programmed to do perform actions. The 8 red lights turned on and off to indicate activity. Or as Peter writes, 'Four bars on top feel your fingers and two woven antennae below sense flesh, complimented by a battery of buttons. There are red lights.'"

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Oberheim Xpander

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"Magnificent oberheim xpander one of considered one of the classics among polyphonic synths and in terms of modulations it is as close as you can get to a modular in classic synthesizer domain.

12 vco's (2 per each voice)
5 lfo's
15 filters.
6 outputs + stereo outputs
this thing is unique and amazing."

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Roland System 8 AIRA Plug Out Synthesizer Update Overview Video

Published on Nov 1, 2018 Gear4music

808 cowbell oscillator at 7:07? Funny.

"The Roland System 8 AIRA Plug Out Synthesizer is a 49-key professional synthesizer featuring three oscillators.

The Roland System 8 AIRA builds on its reputation and design from previous iterations, delivering remarkable flexibility, giving you the ability to access a varied palette of tones with unparalleled character and exceptional audio quality.

The System 8 AIRA features improved ACB technology, giving you more rein over your parameters and controls, giving you the ability to craft virtually any sound you desire. Also included is a built-in vocoder, arpeggiator and polyphonic 'Chord Memory' functions."

Vult Modules Series - Flux Quad Voltage Processor

Published on Nov 1, 2018 Omri Cohen

"Usually, not always, usually, you will want some sort of attenuation when using sample and hold, and sometimes, you will also want to get a smooth signal rather than a stepped one. And when you get also a clock comparator and an envelope follower with it, you will want at least 4 of those to use in your patch. Well, Flux is a four channel sample and hold\clock comparator\envelope follower, with range control and slew limiting, and a built-in modulation matrix for extra fun. In this video, I take a closer look at Flux and at all of its features, with examples built from scratch. Here are all the different patches - https://patchstorage.com/vult-modules...

Introduction - 00:33
Sample and Hold - 02:43 Example - 04:38
Comparator - 11:58 Example - 12:46
Off - 16:33 Example - 17:40"