MATRIXSYNTH

Roland Jupiter 8 with MD-8 MIDI DCB Interface SN 413260

"This one is also a very late one or one of the last made by Roland, later than any other JP-8 i have seen,so it was probably made towards the end of its run in 1984.

The later one got all the upgraded so made it the most reliable and most desirable one for working musician or collector,here's the info from net:
"Throughout the production of the JP-8 there were several changes. Starting at serial #171700 the D/A converter on the Interface board was changed from 12-bit to 14-bit. This change was made mainly to improve tuning stability. The problem with the 12-bit digital-to-analog converter on the original JP-8 is that it could cause the autotune to be inaccurate in some instances. Some say to avoid these early JP-8's while others say they haven't experienced tuning problems. Starting at serial #242750 the LEDs of the display were changed to brighter ones. Starting at serial #282880 the JP-8 came standard with a DCB port. These newer JP-8's may be referred to as JP-8A's. DCB, or Digital Control Bus, was Roland's pre-MIDI interface that allowed the JP-8 to talk to other DCB enabled hardware, such as the Roland MC4 and MC8 microcomposers. Previous JP-8's had the option of having the OC-8 retrofit installed to give it DCB capability."

Check out more info from Wiki"

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VINTAGE ROLAND SH2000

via this auction

SN 424066

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Roland TR-707 in Original Box

via this auction

SN 519000

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Doepfer Pocket Control Mini Midi Controller

via this auction

Note the Technosaurus color scheme.

SN 211777

5 Frac synth modules with power supply in custom case

via this auction

"2 Blacet LFO 2430s-one (kit-$99) one (assembled-$139.00)
1 Metalbox/CGS digital noise (assembled $135)
1 Blacet Dual Lin VCA 2410 (assembled $129)
1 Blacet Multiatten 3010- (kit $30)
1 Blacet power supply ($129)
1 Blacet 9 slot distribution board ($29)
1 custom case ($100)
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Total $790" BIN is $400

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Acid Allstars Roland TB-303 Bassline Synthesizer with Blue LEDs

via this auction
via the listing: "I've had this unit since 1997, and it's been used on many releases over the years on labels such as Communique' Records, Acid Allstars and Acid Revolt Unit. This 303 is not mint, as i've actually USED it. I'll run down the "issues"...

The switches will need to be replaced sooner than later
I replaced the red LEDs with flat blue LEDs, and in doing this, i took a couple of the pads with them. I had to jumper them to the corresponding IC pins that power them. One worked, one didn't. Probably hit the wrong pin. It never bothered me, so i never fixed it.

The Blue LEDs are bright, but not super bright. I replaced the Resonance Pot not too long ago, so that is all nice and new. I will include the rest of the replacement pots as well with the sale. There is minimal wear around the knobs. I will also include the original manual (in VERY good condition), original power supply and silver bag. "

shape sample test

YouTube Uploaded by humbletune on Aug 28, 2011

"Just a small shape synth sampler test. You can use the internal mic, but I used the iRig and an external one..."

"--- :::: NEW :: CoreMIDI :: /NEW :::: ---

Shape is a polyphonic synthesiser allowing the user to draw the shape of the oscillator waveform. The positive side of the oscillation is represented by 32 blocks and the negative side is its mirror, generating all sorts of possible raw retroish sounds. Shape is best experienced with akai synthstation 25.

Powered by Sparrow.

+++ 16 voices.
+++ Attack.
+++ Decay.
+++ LFO envelope.
+++ Delay.
+++ Akai synthstation 25 compatible.
+++ CoreMIDI (USB or Network).
+++ On screen 25 key stylophone style keyboard.
+++ Arpeggio.
+++ Tape.

Support for Akai Pro's SynthStation25 keyboard controller is included. SynthStation25 delivers instant hardware control for improved performance capability and expression. For more information on SynthStation25, visit http://www.synthstationapp.com.

What's New in Version 1.6

+++ Email tapes (send on export on/off button in settings).
+++ Embedded file manager (email files, delete files).
+++ CoreMIDI input (tested with camera connection kit and wifi).
+++ Sequencer.
+++ myTape number setting (allows you to reset/set this unique character.)."

shapesynth - Erik Sigth
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Using Percussa AudioCubes to Control Matrix Modulation

Percussa has a post up on the potential of using AudioCubes to control modulation parameters in a Max/MSP based synth.

"For example, when you put a cube in the network, it could mean adding a pin in the modulation matrix, but it could just as well imply adding multiple pins simultaneously in different locations. Rotating the cubes could imply swapping pins in the matrix, and changing pin locations could mean changing colours for the cubes."