Each all-analog circuit features different input/output impedance, internal voltage and behaves differently on the volume / output knob, producing its own sonic signature, so that you can find the one that suits your rig and playing style.
rm: our own silicon interpretation of the 60s classic germanium treble booster. Using a unique setup of paralleling 2 low gain silicon transistors we’ve managed to produce a sound that will convince even a NOS OC44 enthusiast. Use it to push an already overdriven amp or add presence and bite to a dark sounding setup.
ep: JFET preamp – gain stage based on the preamp circuit of a tape echo unit of the early 70s run on true to the original specs 24V DC power supply via an internal voltage boost. This tone enhancer is known for its magical coloration and the added focus and detail it gives to your sound.
ma: op-amp boost based on a clean and “transparent” volume booster of the late 70s / early 80s. This circuit is a “reference” to louder solos. Use it to run long signal chains with its low output impedance or drive your amp harder into natural saturation.
mf: based on a late 90s ultra-transparent, high input impedance MOSFET boost. This interpretation doesn’t crackle but still retains the massive clean boost with pristine highs sonic identity of the circuit it was modelled after.
We have added tone shaping modifications, individual to each circuit, that you can switch at will via the white and black button modifiers.
White button modifier operates only on rm and ep circuits, black button modifier operates only on ma and mf circuits.