Frostwave Blue Ringer Ring Mod pedal by Paul Perry

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"One used Frostwave Blue Ringer Ring Mod Pedal with power supply. Great shape, barely used, works great.

The Frostwave Blue Ringer is a true bypass box, with the standard ring mod controls of a wet/dry mix and oscillator frequency. There is a level control for the input signal, as well as a second input signal (allowing Input B to become the modulation source for the main input) and a blend control, determining the mix of the internal oscillator and Input B as the modulation source.

This particular ring modulator is excellent because it is a true proponent of the effect-- it will cross-modulate two signals. You can feed absolutely anything into Input B and have it ring modulate your main input (which is fantastic for vocal effects), and allows both the second input and the internal sine wave oscillator at the same time, offering a great deal of depth and variety. Similarly, when using just the internal oscillator, lessening the mix (i.e, adding more of the nonexistent Input B) lowers the gain of the oscillator, drastically changing the effect.

There is a control voltage input in the back for controlling the frequency of the oscillator (CV only-- Frostwave doesn't accept expression pedals, and are true to their modular synth ethos), allowing for realtime pitch sweeps. This input accepts both positive and negative voltage, so it's possible to sweep down from the slowest frequency setting, lowering the frequency to a slow tremolo..."