MATRIXSYNTH

Roland TR-606 Drumatix Analog Drum Machine

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Roland System 100 101 w/ Hard Case

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"Overall, the synth is in superb working condition. The front panel is very clean, with hardly a mark to be seen, just small blemishes. The side panels are really tidy with only minor marks. The back panel is very clean with only minor marks to the paintwork.

All knobs, sliders and switches are present, original and function correctly.

The unit has been fully tested and the oscillator tuning and scaling confirmed and the key contacts are all sound.

Included as part of the sale is the original Roland hardcase for the synth."

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Roland System 100 Model 104 Analog Sequencer

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"Vintage Analog Roland System 100 Model 104 sequencer from 1976 (serial# 46x...). All original, fully functional and recently serviced. This is a 2(!) independent channel, 12 step sequencer that also has parallel CV outputs with gives you 24 steps. Eurorack fans: check out the specs page: lots of possibilities. Optically VG+ for this 41 year old classic."

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Roland Sh-09

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Kronos sampling bank

coyotesynth
Published on Aug 13, 2017

"This is a short teaser of our coming Kronos Analog Sampling bank, with an example of a sound sampled from a Jupiter 8 processed through an Eventide Eclipse FX Processor. Drums are made with samples of the Elektron Analog Rytm, which is a part of the bank."

Ladik S-143 4-note pattern sequencer w. random modes

RuprechtM
Published on Aug 13, 2017

S-143 (4HP) Eurorack 4-note sequencer, 8-beats and 16-beats patterns, random patterns (with and without step repetition, step LEDs glows at half brightness in random modes)

rack from left:
L-111 LFO - used as clock (second L-111 not used)
P-010 switchable mult - for clock
S-143 4-note seq - not used
P-060 switches - 2 lowest switches used for switching bank1/2 and 8/16 beat patterns
S-143 4-note seq - used for generating CV for VCO
D-250 patterns generator - used for generating drum triggers
D-333 ROM player - snare
D-010 twin-t drums - BD and block
O-111 VCO - bass
F-510 VCF - bass
C-041 dual envelope - for VCF
A-011 dual VCA - not used
M-133 3ch slider mixer (1-bass, 2-snare, 3-BD+block)
A-310 headphones amp - one for control listening, second for audio output

GRP Eurorack Videos by AudioCentralMagazine

AudioCentralMagazine
Published on Aug 13, 2017

Playlist:

1. Grp VCO Euro Rack
"The Grp VCO Euro Rack. 00.00 = Octave 01.10 second VCO 01.26 waveforms 02.20 two oscillators 03.20 hard sync 04.36 fm lin & exp 06.38 three oscillators 07.36 sub oscillator"

2. Grp Synthesizer 24 dB Low Pass Filter
"The Grp Synthesizer 24 dB Low Pass Filter Euro Rack. 00.31 = Cutoff & Resonance 01.02 pole select 02.34 distortion 03.09 envelope & lfo modulation 04.41 resonance cv modulation with lfo 06.07 audio rate frequency modulation from vco sine wave."

3. Grp 12 dB State Variable Filter
"Grp Synthesizer 12 db State Variable Filter Euro Rack. 00.17 Cutoff, Resonance & Env Amount 01.34 Input overdrive 02.00 mode selection w. lfo mod 03.18 resonance enveloped 04.09 distortion & resonance 05.50 add sub oscillator 07.19 short envelope 08.18 auto oscillation 09.57 notch."

4. Grp Voltage Controlled Amplifier Euro Rack
"Grp Synthesizer Voltage Controlled Amplifier in Euro Rack Format. On this video: changing linear & exponential response, audio rate AM, initial gain."

5. Grp Envelope Follower Euro Rack
"Acidlab MIAMI goes into Grp Envelope Follower Euro Rack. Gate out fires an ADSR for lowpass filtering MIAMI sound; Env Foll out goes to SVF BandPass Filter for emphasizing snare & hats."

6. Grp Fixed Filter Bank Euro Rack
"Fixed Filter Bank is receiving three sligthy detuned saw oscillators."

7. Grp Stereo Out Module
"Grp Stereo Out Module is receiving a kick (LP full resonance enveloped) on CH 1, a snare (noise highpassed plus click) on CH 4, seq 1 saw&sqr on CH 2 and seq 2 sqr wave on CH 3. Ch 2 and 3 are hard panned L-R; ch 1 and 2 have pan pot control. WARNING! on this video, L and R are INVERTE (nice, isn't it? :-D ). Sequences courtesy of Grp R24 Step Sequencer 8x3."

8. Grp Sample & Hold Euro Rack
"Grp Sample & Hold is controlling: VCF Cutoff, VCO Frequency (w. e w.o. hard sync), sh clock rate, smooth/stepped."

9. Grp Synthesizer Low Frequency Oscillator
"Four Grp Low Frequency Oscillators; each one drives VCA Gain amplifying a filtered oscillators. LFO rates are uncorrelated and each LFO can vary its waveform from ramp to triangle and from triangle to saw."

10. Grp Envelope Generator Euro Rack
"From left to right: first eg on PWM, second eg on cutoff frequency, third eg on cutoff frequency (with double ratcheting gate), fourth eg on amplifier."

11. Grp Mixer Euro Rack
"The inverted Oscillator ("-" out of the left mixer) is subtracted (e.g., added with minus sign) to lowpass filter output... instant high pass filter. :-)"