MATRIXSYNTH

Rossum Electro-Music Linnaeus Thru-Zero State Variable Filter Ping Mode Demos

Published on Oct 18, 2019 Rossum Electro-Music

Rossum Electro-Music Linnaeus Internal & External Ping Mode Demos

Playlist:
Rossum Electro-Music Linnaeus Thru-Zero State Variable Filter Internal Ping Mode Demo
Rossum Electro-Music Linnaeus Thru-Zero State Variable Filter External Ping Mode Demo

"Following in the tradition of Evolution and Morpheus, LINNAEUS represents yet another Dave Rossum innovation in filter technology.

LINNAEUS is a stereo state variable filter that provides the unique ability to linearly modulate its resonant frequency through zero into negative frequency, while maintaining stability. With extensive voltage control of nearly every parameter, Linnaeus lets you manipulate the filter’s natural response curve in new ways, to create both subtle and dramatic timbral effects. And with a “one-knob-per-parameter” interface, LINNAEUS inspires sonic creativity that invites (and rewards) real-time interaction.

LINNAEUS’s cutoff/resonant frequency is exponentially voltage controllable from sub-audio to ultrasonic frequencies, while its resonant gain (Q) is exponentially voltage controllable from 0dB to greater than 60dB.

LINNAEUS’s channel output response characteristics are independently and continuously variable from Lowpass, through Bandpass, Highpass and Notch, to Low and High Shelving characteristics. Voltage control of the response characteristics are independently selectable for each of the two channels.

The linear thru-zero modulation is provided by an integrated modulation oscillator and/or an External Linear FM modulation input.

The voltage-controllable modulation oscillator can track the filter’s exponential frequency or operate independently. The modulation oscillator’s output waveform is continuously variable from Off through Sine, Triangle, and Sawtooth, to Square. The modulation oscillator output is summed with the external linear FM input and applied to the modulation index VCA, which controls the linear thru-zero modulation index from zero to 8X. The modulation index is, of course, also voltage controllable.

What’s with the egg?

Late in the beta testing process, our good friend and tester, Chris Meyer, raised the possibility of alternative behavior that would let LINNAEUS function as a self-contained (i.e., no input required) stereo oscillator and/or FM percussion voice with some really powerful timbral capabilities.

While we were initially hesitant to try to shoehorn the new functions into the existing interface, once Dave had prototyped them, it was clear to us all that they were just too cool not to include. So we’ve provided them in the form of alternate firmware accessed by pressing and holding the Egg button.

LINNAEUS is 16HP wide and 25mm deep.

Power requirements (max): 155mA +12V, 36mA -12V. Reverse polarity protected."

Roland MKS Series Full set - Perfect working Nice Condition

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

Roland MKS Series Full Set.

MKS-7 Super Quartet
MKS-10 Planet-P
MKS-20 Digital Piano
MKS-30 Planet-S
MKS-50 Alpha Juno
MKS-70 Super JX
MKS-80 Super Jupiter
MKS-100 Digital Sampler
MKS-900 Signal Indicator

Perfect working confirmed.
Nice Condition as see in the pictures.

FDD drive (MKS-100) not tested.

This one is in via M Me.

CLICK FOR MORE »

Vintage ARP synth : Avatar (1977)

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

"Sold as "fair", actually in good shape and fully working, but the sliders plastic caps are missing, the power switch is disconnected and power light is off, though the machine powers up, OSC 1 sometimes goes erratic for a few seconds, may need a recap ?

The guitar part was disconnected by the previous owner who used it as synth expander. Anyway, this machine asks for getting modular: arp-avatar-modular-patch-bay-kit"

CLICK FOR MORE »

Synthesizers.com Modular Synth System w/ Custom Walnut Cabinets

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

Cab 1
(2) Q960 8 Step Sequential Controller
(2) Q961 Interface
(2) Q962 Sequential Switch
(2) Q963 Trigger Buss
(1) Q120 Connector Interface
(1) Q122 Mini Jack Interface

Cab 2
(1) Q174 Midi Interface
(1) Q175 Midi Interface Aid
(1) Q118 Instrument Interface
(3) Q124 Multiples
(1) Q110 Noise Module
(1) Q127 Fixed Filter Bank
(1) Q150 Transistor Ladder Filter
(1) Q116 Ring Modulator
(1) SSL 1250 Quad LFO
(2) Q109 Envelope Generator
(1) Q107 State Variable Filter
(1) Q108 VCA
(1) Q117 Sample + Hold
(1) Q105 Slew Limiter
(1) Q113 8-CH Mixer

Cab 3
(10) Q106 Oscillator
(4) Q107 State Variable Filter
(8) Q109 Envelope Generator
(5) Q112 4-CH Mixer
(4) Q108 VCA
(1) Q144 Osc Aid
(1) Q101 Power Control

Includes Custom Oberheim Electronics 6 Voice Analog 5-Octave Polyphonic Keyboard Controller

CLICK FOR MORE »