Mad Professor Simble Predrive

Simble Predriver is a musical tool for guitar players and excels in simplicity! It is a preamp/booster/compressor/upper harmonic enhancer.

Simble Predriver boosts the signal and compresses it without the slow attack time and it also adds harmonic overtones. This musical combination is totally adjustable with your picking attack and guitar volume pot.

You can get the sweet spot from your amp at any volume or hit your amp- or pedal overdrive into a gnarling lead tone!