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Metasonix RK8 Filterwall

” 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.”
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Metasonix R-53

“Rare item, excellent build, really good shape as it was never moved and rarely used.”
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Metasonix TM-5

“Metasonix TM-5, All pentode guitar preamp. Like new. Extremely rare!!

This is the most sought after of all of the Metasonix pentode hardware. And frankly, it’s the most useful and usable of them all. This device doesn’t just mangle audio, like the other Metasonix yellow boxes – it’s a very versatile preamp, can be used to add subtle analog presence to any audio! Not just for guitars!

Like new condition! I’ve only plugged it in a handful of times. It’s a beast, very fun to tweak, lots of cool features. It’s been a prized possession, but I’m entirely digital now, and don’t have use for analog effects like this anymore. Comes with power supply and original box.” Click here to visit listing on eBay

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Metasonix TM-1

“Metasonix TM-1 Waveshaper And Ring Modulator Vacuum Tube/ Valve Distortion Pedal. Condition is “Used”. Dispatched with Royal Mail 1st Class.

Small scratch to body otherwise perfect condition

Complete with nos spare tubes and uk power supply” Click here to search for synths on eBay

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Metasonix TM-1

“Very rare distortion unit which is great for real tube distortion and crazy tube effects. Unlike any other audio distortion I have heard. Comes with lots of extra NOS tubes for different tones. Reluctantly selling due to downsizing studio. Unit is serial number 127. Only used in a smoke free studio.

Lot includes:

– 1 Metasonix TM-1

– 14 extra tubes

– 1 Power supply (U.K. plug)” Click here to search for synths on eBay

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Metasonix TM-7 Scrotum Smasher

” This was purchased new and put away for over a decade. Recently found amongst a bunch of other pedals and random bits of gear wile moving. I own 3 of them along side other Metasonix gear. I had money back then and kinda went nuts on spending.
It is truly as new as it was the day it arrived from Lake Port CA, home of Metasonix. The tubes are fresh and barely even warmed up.” Click here to search for synths on eBay

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Metasonix TM-1 SE

“BRAND: Metasonix

MODEL: TM-1 SE Vacuum-Tube Waveshaper RingMod (Big City Music Special Edition)

FUNCTION: CV Controlled Waveshaper / Ring Modulator

PRODUCT DESCRIPTION: This listing is for a Metasonix TM-1 SE Vacuum-Tube Waveshaper RingMod (Big City Music Special Edition)

SPECS:

Serial #20 of 25
Super Rare
Ring Modulator Frequency Range: 200Hz – 10kHz
Can function as a modular synth unit unit or signal processor for any line level device (including a guitar run through a preamp or high-gain pedal).

ACCESSORIES INCLUDED: This item includes the original box and power supply. Otherwise, it comes as seen in photos, and does not include any additional accessories.

EXTRAS INCLUDED:

TM-M Mounting Hardware Kit – for mounting any Metasonix TM Module in a Synthesis Technologies MOTM Synthesizer rack. ”
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Metasonix S-2000 with Future Retro Mobius Sequencer

“Sad to see these go… By far the juiciest synth tones out there.

The Metasonix S-2000 is an early one, #22, and in perfect working condition. The brushed black aluminum gathers dust and fingerprints very easily, but the only wear is on the rack ears.

The Mobius has CV outputs for V/Oct and Hz/V and midi outputs and pairs perfectly with the S-2000. No visible cosmetic flaws.

The Mobius is discontinued but Future Retro are still operational.

Will not sell separately. Working adapters for both included. Thank you for looking, bid with confidence.”
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Metasonix S-1000

“Wretch machine excellent used condition with original box, manual, sticker and bin bag that it shipped in.

Uk/EU power supply.

Very few made around 96 I think, this is one of the last few.

Everything works as it should and will come with a spare set of tubes, awesome tube synth, ”
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Metasonix R-53

“Metasonix R53 tube waveshaper- ringmod

Excellent condition with only very minor rack rash.

Don’t have original box but will be well packed.” Click here to search for synths on eBay

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Metasonix R-61 Vaccum-tube VCA/Distortion

“This is a Metasonix 5-51 Vacuum-Tube VCA/Distortion for Eurorack format modular synth. This is a super fun, unique and quirky-looking module. These are not easy to find. Item has been used very little, fully functional and has little cosmetic wear. It will include the ribbon cable for power. It will include a second set of vacuum tubes to replace or experiment with (four fully working tubes total).” Click here to search for synths on eBay