GUPtech GrindR Douche Edition — Preamp / Boost
GUPtech GrindR Douche Edition — Preamp / Boost
Fit and constraints
Intended use
Constraints
To use it
Questions
What voltage, polarity, and current does this exact revision require?
Ask before you buy via contact. Confirm power, condition grade, and included items against the listing photos.
Are the original box, power supply, and any model-specific accessories included?
Ask before you buy via contact. Confirm power, condition grade, and included items against the listing photos.
Does this listing match the exact revision and finish shown in the source photos?
Ask before you buy via contact. Confirm power, condition grade, and included items against the listing photos.
Description
The GUPtech GrindR Douche Edition combines a 20dB clean boost with a switchable preamp featuring bass and treble controls. The left footswitch toggles between preamp and bypass modes, while the right switch selects between two EQ voicings: original Grind or 33. In preamp mode, bass and treble controls activate; in bypass mode, you adjust level and EQ type only. Requires 9V DC center-negative power (exceeding 9V will damage the unit).
Seller notes: GUPtech GrindR Douche Edition — Preamp / Boost.