The Wizards Sleeve Preamp is a pedal based on the Diezel VH4 amp, known for its high gain metal tones. It can be used as a standalone preamp or as a boost in front of an amp. It has a powerful gain section and can get very loud. It is recommended to use an 18v power supply for optimal performance. The pedal features 7 knobs for controlling Gain, Volume, Bass, Mid, Treble, Deep, and Presence, allowing users to dial in the desired tones.

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