Analogue Solutions RM NoiseBug Price : $110.00 Related Items: Analogue Solutions Modules are the same physical size and use the same power connectors as Doepfer a100 modules. They will mount in Doepfer eurorack cases and are 100% compatible when patching. The red stripe on the power ribbon is red line down if used with Doepfer cases. Included is a eurorack power ribbon and eurorack screws. Analogue Solutions screws available upon request. Width 6HP Manufacturer Description: Ring Modulator Width 6HP A Ring Mod is a great module for producing sound effects and metallic type sounds. You usually need to use this with 2 VCOs. The newest edition to Analogue Solutions arsenal of eurorack modular effects is now in a inexpensive 6 HP size! Ring modulation is a signal-processing effect in electronics performed by multiplying two signals and the output sum and difference of frequencies produce a signal rich in overtones, suitable for producing bell-like or otherwise metallic sounds. Controls & Sockets: 2 inputs, 1 ring mod out