severence // inside a dream patch

Published on Sep 17, 2017

"// vacuum tube noise soundscapes

// patch notes //

erogenous tones levit8 out 2 - metasonix rk1 decay cv in
erogenous tones levit8 out 7 - metasonix r54 pitch cv a
erogenous tones levit8 out 7 - metasonix r55 pitch cv a
erogenous tones levit8 out 7 - schippmann omega-phi pm depth

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severence // electron tunnel patch

Published on Apr 23, 2017 severence

"vacuum tube noise soundscapes

// patch notes

make noise maths ch4 unity - verbos electronics bark filter processor 3.7k
make noise maths eoc - make noise rene x clk
make noise maths eoc - verbos electronics bark filter processor 7.7k
make noise maths eoc - verbos electonics random sampling quantized randoms trig
make noise maths inv - ssf positronic transient gate in b
make noise maths or - verbos electronics bark filter processor tilt
make noise maths sum - ssf positronic transient gate in a
make noise maths sum - verbos electronics dual four pole lowpass cv b

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Metasonix tamed by pressure points & more

YouTube Uploaded by MrPalebluedot on Mar 26, 2011

Playlist:

1) Metasonix tamed by pressure points vol 1 - "I've tuned the metasonix R54 oscillator with Make Noise pressure points using a tuner on my iphone. The Pressure Points are tuned to ABCDEFA. The oscillator does drift a little so it may not be perfect. Also I am new to pressure points and I'm not a particularly good keyboardist anyway.

In this video the R54 is routed to the R51 VCA and then to the R52 VCF. an LFO profides some vibrato to the VCA but the full voice is metasonix."

2) Metasonix tamed by pressure points vol 2 - "I'm new to pressure points so forgive my "style". I went for a different more characteristically metasonix voice with this second video. This one is R54 to R53 with the pulsar adding grit, then into the R51 with some vibrato from an LFO to the distortion CV input."

3) Metasonix drums - "Using R51 R52 R53 & R54 as a drum machine of sorts. All sounds are 100% metasonix. The other modules used are for control voltages. There is a doepfer dual vca in the mix if you count that ;)"

4) R53.MP4 - "Metasonix R53 basic demo for ritchie. R-53 pulser as sound source R54 osc used with pulser R54 osc w/ uLFO osc as sound sources for 'ring mod'"

5) R52.MP4 - "metasonix R52 demonstration for mr ritchie. Some self oscillation followed by filtering of a uLFO saw and LFO some modulation."

6) Metasonixseq.MP4 - "Sequence metasonix r51 r52 r53 r53"

More modular vids by MrPalebluedot: http://www.youtube.com/user/MrPalebluedot

severence // ecosistema patch

Published on Mar 19, 2017 severence

experimental ambient soundscapes

// patch notes

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Metasonix Wretch Machine Videos by Smokey Quartz

Wretch Jam #1 Published on Apr 12, 2014
An experiment. Metasonix S-1000 Vacuum Tube Synthesizer and R-56 Vacuum Tube Spring-Reverb Module. No keyboard or controller, just the S-1000 ran through the R-56. A lot of the noise, feedback, and distortion is coming from the R-56. Everything is competing for the attention of those little springs in the R-56. Lo-Fi, noisey, droney, and live.

The video is from an old digital camera. The audio is recorded straight into the computer with a little bit of EQ and compression. I can't say this is representational of the S-1000 or R-56 sounds, it is just what came out tonight.

Wretch Jam #2 Published on Apr 13, 2014
Another all tube improvisation, this time with the Metasonix S-1000 synthesizer and D-1000 drum machine being ran though the R-56 Spring Reverb module. The Elektron A4 is sending some triggers to the Metasonix gear but is contributing no sounds. Everything is competing for those little reverb springs.

Video is from an old digital camera. A mono audio signal being recorded straight into the computer with a compression and EQ.

Wretch Jam #3 (with Drone Cat) Published on Apr 14, 2014
Another with the Metasonix S-1000 and D-1000 being ran through the R-56 reverb module. Storge' the cat assisted.

Wretch Jam #4 Published on Apr 15, 2014
More reverberated, vacuum tube farts. Recorded during a total eclipse of the moon. 415.2014

Metasonix S-1000 synthesizer and D-1000 drum machine ran through the R-56 reverb module. Interrupted by kitten.

Wretch Jam #5 (with Drone Cat) Published on Apr 16, 2014
A quick drone with kitten. The Metasonix S-1000 vacuum tube synthesizer ran through the R-56 spring reverb module.

Wretch Jam #6 Published on Apr 19, 2014
Another wretched jam with the Metasonix Wretch Machine, D-1000, and R-56.

Wretch Jam #7 Published on Apr 20, 2014 Smokey Quartz·8 videos
Another hypnotically horrible Wretch jam with the Wretch Machine and R-56 spring reverb module.

Wretch Jam #8 Published on Apr 21, 2014 Smokey Quartz·9 videos
A wretched improvisation with the Metasonix S-1000 Wretch Machine and R-56 Spring Reverb module. Storge' the cat lends his support.

Metasonix R-56 Vacuum-Tube Spring Reverb

Note: Auction links are affiliate links for which the site may be compensated.
11/16/23 Metasonix R-56 + Birdkids Unicorn Boom + Gieskes VU Perc + TR-606 + Tapco 4400 + CXM 1978 video upload by Cfpp0

via this auction

"If not for Metasonix, I would never have bought any eurorack. Metasonix is a legendary company, producing legendary products. And, of them, this R-56 is amongst the rarest.

The R-56 has been out of production for years, and will never be re-released. We’ve all asked. The parts are simply not available. So these are rare, and expensive.

It’s a WTF sort of module. A spring reverb you can voltage control. It has a unique sound, even within the Metasonix realm. Customers complained about wanting MORE gain, said the great Tube Pioneer, so this module has it. That insane gain, plus the ability to feedback an electromechanical spring reverb, make it a module that requires finesse (and maybe an attenuator, or matrix mixer). If you are impatient, or unfamiliar with Metasonix‘s quirks, please pass on this listing. It’s odd. Really weird. Also it requires a lot of power for the cold inrush, power on, tube warm up, so you’ll need a nice beefy power supply like an RKP or Trogotronic.

The video in this listing’s photo section features the sound of this exact module.

More likely, you’ve been longing for this, but the blood sport that is Metasonix’s secondary market has kept you from your dark distorted springy dreams. Realize them now. Live them. Buy."

severence // mind lock patch

Published on Dec 10, 2016 severence

"// patch notes

antimatter brain seed seed out - schippmann omega-phi 1v/oct
antimatter brain seed trig out - steady state fate propagate in4

antimatter sub ring mix out - verbos electronics dual four polelowpass in

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Metasonix KV-100 "The Assblaster" demo.

YouTube via asktehdust | August 21, 2010

"Demo by Nicolas of the band Ask the Dust of the Metasonix KV-100

The Assblaster is a one of a kind tube multi-effect for guitar, synth, drum machine... really anything.
I believe this is the only video demo on youtube that shows what it sounds like with a guitar.

It's composed of 4 indepedant modules : a preamp, a filter/ring modulator, a pulser and a VCO. There's also a built-in gate that can trigger a really cool envelope follower effect with the right settings of filter and input level. Like a ll Metasonix devices it takes quite some time to see how all parts interact with each other, but once you get familiar with it there are literally thousands of possibilities.

People usually know about how great Metasonix products are to destruct any kind of audio source, and of course they are,, but there is a lot more to them. Actually I find them really usable in a recording context, cause the one of a kind texture they bring to an arrangement never fails to lift a song .
It's the exact opposite of harsh digital distortion, the fact that it's tube based makes the tones really organic and warm...perfect for fuzzy walls of sound, synth like guitars, etc...

Official description :
The Metasonix KV-100 is not called the "Assblaster" for nothing. We've taken all of our knowledge of extreme vacuum-tube audio processing and combined it into a single convenient, easy-to-use package. Inevitably, the end of the TM series will cause shit-eating, ass-fisting guitar players to whine about how "underappreciated" they are. So, we're feeding them a foot-long fecal sandwich of audio penis.


It's complete with disgusting and juvenile cartoon art by Dave Lovelace, of Retarded Animal Babies fame.

The KV-100 contains the following:

--five goddamn real new-old-stock VACUUM TUBES.
--the basic preamp stage of our TM-7 Scrotum Smasher, driving:
--the waveshaping (pulser) and ring modulation functions of our TM-1, minus the ring-modulator carrier oscillator, which then drives;
--a VCO derived from our TM-3 (it is NOT intended for use as a synthesizer pitch source, only as a special effect for signal degradation), leading to;
--an all-new wide-sweeping bandpass filter, with envelope filter function plus wah capability (external pedal);
--plus an envelope follower, which also makes a gate signal;
--and a noise gate on the output, which is always active and is driven by said gate signal.

Plus relay-based true bypass for the main circuit, plus relay controlled activation of the VCO and pulser. Controllable with manual switches or external Fender-type amp footswitches.

Plus plenty of processing inputs and outputs for control voltages. No MIDI, dammit.

Only 8 knobs allow for vast ranges of distortion and effects, from subtle to flaming-enema. It's for those filthy, nutsack-sucking guitarists. Because they deserve, and love, flaming enemas.

Yes, you can plug your damn guitar into it, Yes, you can plug line-level sources into it. Yes you can run the output to a guitar amp or any mixer. Yes, all the inputs and outputs are compatible with modular synthesizers.

Full dealers list on metasonix.com
This pedal is used by the french band Ask the Dust
Become a fan to download 2 free tracks, as well as most of our first records.
Our last EP is available on this same facebook page for 4€.

Recorded with a 63 Fender Jaguar through a Fractal Audio AXE-FX with a Shiva emulation then in a RME Fireface 400 soundcard." Metasonix KV-100 "The Assblaster" demo.

7/31/23 Metasonix RK8 Filterwall + SSL 1660 + MooSonics Vanilla VCA/Envelope + PCM 70 (gated plate)

video upload by Cfpp0

"A maiden voyage into the latest glory hole from Metasonix."

via Metasonix

"The RK8 contains six bandpass filters, which use vacuum tubes. They are simple 'twin T' designs. Each filter is about one octave lower in range than the one to the left—treble on the left, bass on the right.

Each filter may be manually swept with its own separate tuning knob, over approximately one and one-half octaves. Or ALL the filters may be swept together, using either the 'MANUAL TUNE' knob, or the CV input, which overrides the knob when a patch cable is inserted. Although it is capable of some conventional swept-filter effects, the RK8 is more useful as a complex equalization system or for unique special effects.

Resonance is separately adjustable for each filter. Usually the treble filters will resonate strongly and oscillate under some settings. The bass filters might not. It’s a strange monster.

Inputs and outputs are compatible with all Eurorack and other modular synthesizer equipment. The output peak voltage is limited to the supply rails and can’t damage other modules.

Don’t assume you know what you are getting here—the RK8 is unlike anything else ever marketed. Also don’t expect it to track VCOs. Its voltage-to-frequency curve is 'more or less' hertz-per-volt but can’t really be guaranteed. The six vactrols in each RK8 were hand-matched, but can’t be expected to remain matched, or to track together perfectly.

Again, everything about the RK8 is abnormal. It is not perfectly 'clean' and perfectly 'distortionless', and it cannot be made so. Because it uses vacuum tubes.

It is something you have NEVER seen before. It can NOT be compared to any other product, ever made, PERIOD. Do not walk into this with 'preconceptions'.

Specs: 32HP width Eurorack module, with circuits protruding about 1.5″ or 38mm behind panel. The RK8 uses six 5702 subminiature pentodes, all Raytheon US military surplus from the 1980s. Power supply required is about 600 mA after warmup and 1.4 amps when started cold from +12v, and 10 mA from -12v. Low-cost power supplies are NOT recommended. A spare tube is included, although soldering equipment is needed to replace any of the tubes. They are run very conservatively and will last many, many years."

Metasonix RK8 Filterwall Demonstration 1 SD 480p

video upload by Endmusik Records

"Metasonix RK8 Filterwall prototype demo - video 1.

Modules used: Hexinverter Mutant BD9, Mutant Snare, WMD Crater and Kraken, Moog DFAM, and some live percussion samples from the 1010 music Bitbox.

This is an un-edited 13 minute session of experimentation with direct audio recording to showcase the tonality of the prototype as it processes these sounds. When audio stops and comes back in that is me bringing up a separate mixer channel of the raw audio unfiltered as a comparison, which is then muted out and the RK8 direct channel is brought back in."

Metasonix RK8

video upload by The Mephitif

"Some examples of the Metasonix RK8 Filterwall. First clip is of the Industrial Music Electronics Hertz Donut MK3 running through the Filterwall. Second clip is the Filterwall acting as a sine bank. Third clip is some bad drumbeat being processed through the Filterwall."

Metasonix Wretch Samples

Michael Weeks of www.thewretch.com and www.endmusik.com just sent me links to samples and shots of the Metasonix S1000 Wretch. He is working on the manual for the Wretch and has a protype in his studio. Very cool of him to send this our way. Thanks Michael! Links and some info below.



"A full multi-part demo, with all synths the S-1000, and all drums
processed through the waveshaper and filter: http://thewretch.com/metasonix/S1000MultiDemo.mp3

Also in the directory - http://thewretch.com/metasonix/ , there are
several other demos of more extended tweaking, just single patterns, or
pattern chains, from a future retro mobius with live knob tweaking.
And there are some other demos of just the filter section, as it is the
same circuit being used in the TM-6.

And of course - mandatory synth pron - some nice close up arty photos
of tubes!
http://thewretch.com/metasonix/S1000Closeup1.jpg
http://thewretch.com/metasonix/S1000Closeup2.jpg
http://thewretch.com/metasonix/S1000Closeup3.jpg

take care,

Michael Weeks
www.endmusik.com
www.thewretch.com"

A Minty Fresh Assblaster

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

via this auction

"One used Metasonix KV-100 Assblaster serial number 13 - a rare item, out of production and from a limited run. Barely used maybe 20 hours, virtually mint with power supply."

This one in via Brian Comnes:

"Reluctantly I am selling my Metasonix Assblaster. It's just not being used and I can use the bucks for some other items. Gotta like those graphics however. 8-)

So if you had achoice between adding an Eventide H9 pedal or getting asmall Linnstrument keyboard what would you choose.

When Buchla raised the price of the Easel AUX expander from $499 to $799 I dropped interest in that, sheesh you can get a lot of good synth stuff for $800."

You can find a demo video of the Metasonix KV-100 Assblaster here.

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HELLFIRE MODULATOR TS-21

images via this auction

Inside a TS-21

via brian c

"As you can see in the photo, this is the third unit produced. This unit is completely hand wired from point-to-point, and in EXCELLENT condition. This unit has an extra knob in the rear which is not mentioned in the owners manual, leading me to believe that this could possibly be an early prototype. The rear knob has an affect on the frequency of an oscillator, separate than the ones the L1 and L2 knobs control.

Metasonix has put its knowledge of tube circuitry to good use in the design of the TS-21. The unit is made up of three stages, each with its own tube: a preamp with a VCA, a pulse-width modulator (PWM), and an LFO-controlled waveshaper. Vacuum tubes are also used for the LFO and for powering additional circuits, giving you a total of five tubes in the device. Despite the tube count, however, the TS-21 has very low self-noise and gets only slightly warm to the touch.

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NAMM 2013: Metasonix-S-2000 Vacuum-Tube Synthesizer

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

via this auction

"Up for Buy It Now is the New Metasonix-S-2000 Vacuum-Tube Synthesizer. One Picture taken at the 2013 NAMM Show, others added 1/26/13!

I played it a the NAMM show and was impressed by it's user friendly design. It's a very dynamic sounding synth. Totally unique in a world of synths. You will be amazed at it's sound!

Metasonix took 20+ years of experience in vacuum-tube electronic music, and used it to make the most exciting instrument in the history of Metasonix. The S-2000 is not merely a new repackaging of old designs. It is a revolution, and a game changer.

The S-2000 was made to be as easy to use as possible. Just plug in power, plug in an amplifire, wait 30 seconds for the real new-old stock vacuum tubes to warm up, and start playing it. The built-in 400mm ribbon controller is instantly responsive, and needs no special treatment. No trimpots, no fiddling with MIDI interfaces or fighting with fistfuls of cables. The miseryhas been engineered out.

The simplicity might fool you. The S-2000 has enough controls and enough flexibility to keep the musician busy for years of sonic exploration.

The S-2000 contains:

Two all-tube oscillator/filter "Operators", with resonance variable from flat responce to deep oscillations. Waveshape is variable from clean sine wave to a distinctive distorted square/pulse wave. Resonate both for FM sound effects.

An all tube VCA (Voltage Controlled Amplifier)

Three Contour Generators:

C1 Attack-Release types feeds the VCA

C2 Attack-Decay type feeds the "Operator" 2 Sweep and optionally the VCA, and may be set to retrigger automatically.

C3 is the same as C2, but feeds the "Operator" 1 CV Input.

Plus a built-in and highly-sensitive ribbon controller, which triggers C1-C3 when the Ribbon is touched. Two Modes are available, continuous open for pitch bending (Theremin Style), and single-touch for discrete held pitches. The Ribbon gives more than 3 octaves of pitch range.

By setting the the two "Operators" properly, it's possible to get a range of classic synthesizers sounds. By setting them a little differently, you get sounds no one has ever heard before.

The S-2000 is made for use anywhere. It weighs only 1.25 kg (less than 3 pounds). Use it stand alone, or mount in a standard 19" EIA Rack. (It is 3U high but only protrudes 1 inch, or 25 mm behind the panel). It runs from a standard 12v DC adapter (one is included that can work on any mains power source on earth.

It's built like a proverbial tank. The front panel is a massive anodized aluminum slab with legends deeply engraved and paint-filled, and the electronics are protected by a tough, fully shielded steel enclosure with nearly indestructible powere coat. The tubes are very commonplace types, easily available from any vacuum-tube distributor. Metasonix offers a full set of replacement tubes, pretested and known good, via it's distributors, at a very reasonable extra charge.

The Input connection for the SpectraSymbol Ribon is accessible, so that any size SpectraSymbol ribbon controller may be plugged in and used - right up to their 1-Meter length. Need more resolution? No problem.

External Inputs and Outputs are available. CV and Gate Outputs from the Ribbon are accessible from the front-panel jacks at all times. The CV-Gate Inputs can be used by switching the CV/Gate selector switch (CV can be varied from 1.5v to 7v for more than 3 octaves of range, tunable with the front-panel tuning knobs) The audio input feeds into "Operator 1, so that both "Operators" can be used as Bandpass Filters in Series. The S-2000 is hand-made in California, by real people.

So: Purchase with cconfidence. And play with confidence. Because you're playing at the leading edge with the New Metasonix-S-2000 Vacuum-Tube Synthesizer. "

Something Metasonix This Way Comes

Just when you thought you've seen it all... :)
via Dave:
"Eric Barbour, a.k.a. Metasonix, is up to no damn good again. I created art for Eric's TX-2 Butt Probe manual, and the graphics & manual for the TM-7 Scrotum Smasher. And now, the latest piece of hardware I did creative production for... well... I just don't know what to say.

As a tease, I'll be posting new daily images (usually one per day, occasionally two) on umop.com until all is revealed at the NAMM Show on January 17th.

The first three images are attached, and can be linked here:

http://umop.com/metasonix/01.jpg
http://umop.com/metasonix/02.jpg
http://umop.com/metasonix/03.jpg

Latest daily images will appear here: http://umop.com/metasonix.htm"

Three Five Five Metasonix

Published on Apr 15, 2012 7numan7·70 videos

"An "outdoor performance" featuring 3 Metasonix R55 Thyratron VCOs being controlled by a MakeNoise Pressure Points / Brains sequencer that I am playing like a keyboard (with some of the steps triggering chords, and others playing all 3 VCOs in unison), with the Touch-Gate output from the Brains triggering a Circuit Abbey ADSR Jr envelope generator (that modulates a Metasonix R51 patched as a VCA and triggers another ADSR Jr that modulates a Metasonix R52 VCF).

Enjoy!"

True Grit (R-53)

Published on Jun 9, 2012 7numan7·70 videos

"Some sounds from a Metasonix R-53 Pulser-Waveshaper + RIng Modulator module, that is made from tubes, patched into itself (ie, only one module is used in this recording).

Enjoy!"

Ghosts Within Tubes (R-51)

Published on Jun 10, 2012

"Sounds from a Metasonix R-51 Vacuum-Tube VCA/Distortion module patched into itself.

Enjoy!"

METASONIX HELL TIME - Something New from Metasonix?

"This Saturday, July 11, 6pm at Robotspeak

FREE

Yes, the owner and founder of Metasonix, Eric Barbour, will give an in-person demonstration of the hot new Metasonix vacuum-tube effect, the KV100 "Assblaster"!!

Plus other all-tube Metasonix products!!

If you'd like to try it out, bring your favorite instrument! If you have a modular or other analog synthesizer, bring it and we'll have an Analog Party! With patch cords and control voltages and the whole shebang!!

BONUS! Eric has finished a top-secret prototype for a possible new product for next year! It hasn't even been on Matrixsynth or shown to Metasonix dealers yet, so show up if you wanna be the FIRST IN THE WORLD to see this unique and insane breadboarded mess of wires!!

This demo is for ONE NIGHT ONLY!!! Don't miss it!

YES, WE WANT YOU TO POST VIDEOS AND PICS ONLINE....SO....
!!!!!!!!BRING YOUR CAMERA!!!!!!!!!!"

Three Five Five Metasonix

Published on Apr 15, 2012 7numan7·70 videos

"An "outdoor performance" featuring 3 Metasonix R55 Thyratron VCOs being controlled by a MakeNoise Pressure Points / Brains sequencer that I am playing like a keyboard (with some of the steps triggering chords, and others playing all 3 VCOs in unison), with the Touch-Gate output from the Brains triggering a Circuit Abbey ADSR Jr envelope generator (that modulates a Metasonix R51 patched as a VCA and triggers another ADSR Jr that modulates a Metasonix R52 VCF).

Enjoy!"

True Grit (R-53)

Published on Jun 9, 2012 7numan7·70 videos

"Some sounds from a Metasonix R-53 Pulser-Waveshaper + RIng Modulator module, that is made from tubes, patched into itself (ie, only one module is used in this recording).

Enjoy!"

Ghosts Within Tubes (R-51)

Published on Jun 10, 2012

"Sounds from a Metasonix R-51 Vacuum-Tube VCA/Distortion module patched into itself.

Enjoy!"

Metasonix R-54 Soy Sos Demos

YouTube Uploaded by soysos on Jan 27, 2011

Playlist:

Metasonix R-54 Soy Sos demo 1
"Showing off some of the subtle and not so subtle tones of the Metasonix R-54.
Source is 3 sawtooth waves from the ARP 2600. Pittsburgh Modular VILFO and Timetable as clock and clock divider. Bottom horizontal row of the Tiptop Audio Z8000 is the sequencer for pitch to the ARP. First is manual sweeps of tuning, resonance and overdrive. Then adding in sample and hold from the Doepfer A-148 to filter tuning CV in. The trick for me is an attenuator for dialing in just the right amount of CV. Our kitty Lao (or Boyfriend as he is known) makes his very first video appearance!

Special thanks to Metasonix and Zerosum!"

Metasonix R-54 Soy Sos demo 2
"Source is ramp wave from the Bubblesound uLFO. MFB SEQ-01,Pittsburgh Modular Timetable and Doepfer A-166 Logic as clock and clock divider. 16 step vertical row of the Tiptop Audio Z8000 is the sequencer for pitch to the uLFO. First is manual sweeps of tuning, resonance and overdrive. Then adding in envelope from the Doepfer A-143-1 to filter tuning CV in. The trick for me is an attenuator for dialing in just the right amount of CV. Percussion voice is Z3000 FM'd with Harvestman Polivoks in self oscillation through 2 channels of the Make Noise QMMG (LPG and high pass) Our kitty Lao (or Boyfriend as he is known) makes his 2nd video appearance!"

Metasonix R-54 Soy Sos demo 3 vs the Geiger Counter!
"Digital wavetables battle against tube!
See previous descriptions....
Now with more BRUTAL!!!
This time uLFO triangle input level to WMD Geiger Counter varied through QMMG in LPG mode. This is sort of like digital waveshaping before the R-54."

Metasonix R-55 Thyratron VCO Vacuum Tube Oscillator Eurorack Module

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

via this auction

bigcitymusic special edition on the bottom.

"For Sale: (1) Metasonix R-55 Thyratron VCO synthesizer module in eurorack modular format. This was a limited edition module that was only sold at Big City Music and is not longer available. Includes M3 screws and power supply ribbon cable. From Metasonix:

The R-55 is essentially one of the VCOs in the legendary S-1000 Wretch Machine in a 22U Eurorack module. It produces the notorious "sharkfin" sawtooth waveform of thyratron VCOs, replete with the weird pitch variations and apparent ﾓnoisinessﾔ of a thyratron oscillator.
Turn up the overdrive control, and the oscillator output clips the output amplifier pentode tube, for a unique soft-clipped square-wave sound. The simplicity of the R-55 will fool you--its behavior is erratic and weird, it always sounds broken, and the waveform is deviated in every way. You don't even need to feed it Hz/v CV; just run a square-wave or pulse signal from a conventional VCO into a pitch CV input, and it will force the R-55 to track along with the other VCO.

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*Custom One of a kind. 4U rackmount Metasonix KV-100 Assblaster "Brony edition" *Signed on back.

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

via this auction

via this seller: "This is a beyond special collectors items and I will probably only list it for a day or two so here goes..
Cosmetically & functionally perfect. Original lunchbox not included - this has been converted to a sweet 4U rackmount unit, custom-made to Metasonix's spec (and signed by the man himself! See pic's) kept in a clean, smoke-free space.

This is completely custom and is the only one ever produced as far as I'm aware.

Would fit wonderfully in a Buchla, or Serge rig that has an extra row. Its normal 19" rackmount size (84hp) so it fits in anywhere you need it.

If you're here, you probably know what this thing sounds like. It's a beast. Nothing else does what this thing can do. Consider pairing with your modular, to drive the VCO frequency, etc. It's a blast.
The last and final batch of the original Kv-100 sold out at instantly BigCityMusic for $2799.00

Comes with original power supply.

Specifications: Audio input accepts unbalanced guitar, microphone or line signals.
Output 600 ohms unbalanced.
1/4" jacks for all I/O.
Extra inputs: carrier audio input for ring modulator, CV inputs for VCO pitch and filter sweep.
Extra outputs: envelope CV out, VCO waveform out, pulser waveform out.
Frequency response: yes.
Distortion: yee-haw.
Filter sweep range: <100Hz to >12 kHz.
Uses Jameco 167151 AC adapter for power in 120v countries. Power inlet: 2.1mm coaxial jack. Unit ships with AC adapter for USA.

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