Manufacturer DetailsMetasonix

Panel image for RK7
3U 8HP
An 8HP Eurorack version of the legendary TM-3/S-1000/R-55 VCO circuit. The entire circuit is based on two tubes: a 5696 thyratron and a 5702 subminiature pentode, both of which are military surplus tubes used in avionics. The 5696s are still available but getting scarce. Like the R-055, the RK7 has a pentode clipping stage which provides voltage control over the gain and clipping level. 5702 subminiature pentodes have always been rare and little used outside of military equipment. The RK7 is profoundly weird and erratic. Don't expect it to act perfect. Metasonix has been making products with thyratron tubes for over 20 years. Apart from the early Trautonium in the 1930s, no one ever used thyratrons as music VCO's before.
Panel image for RK8 Filterwall
3U 32HP
Six bandpass filters using vacuum tubes in simple twin T designs. Each filter is about one octave lower in range than the one to the left, with treble on the left and bass on the right. Each filter may be manually swept with its own separate tuning knob over approximately one and one-half octaves. Alternatively, all 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 capable of some conventional swept-filter effects, the module 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, while the bass filters might not.
Panel image for Rk10 Power/Control
3U 40HP
Dedicated power supply and controller power supply taken from the T1 flagship system. It includes a Tiptop audio bus board and can power up to 14 Rk modules. Older R series modules can be powered but with limitations.
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3U 8HP
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3U 22HP
Dual VCA
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3U 28HP
Tube Reverb
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3U 22HP
Supermodule VCO/VCF
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3U 22HP
R-53 Vacuum Tube Waveshaper / Ring Mod
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3U 22HP
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3U 22HP
R-51 VCA/Distortion
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3U 8HP
Tube Waveshaper/Ring Modulator
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3U 22HP
R-54 Supermodule VCO/VCF
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3U 8HP
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3U 8HP
VCA/Distortion/Preamp

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