The Classic pedal features the same tone circuit as you'd find on an all valve vintage SVT head. Add Ampeg character to your bass setup in the convenient shape of an effects pedal. The Ampeg Classic Analog Bass Preamp pedal is like having a choice of Ampeg amps right on your pedal board. Dial in a wide range of authentic Ampeg tones with the 3-band tone stack and highly flexible Ultra-Hi and Ultra-Lo circuits. Its the most affordable way into the pure analog bass tone of Ampeg. Delivers a wide range of authentic Ampeg tones Classic 3-band tone stack plus volume Ultra-Hi and Ultra-Lo circuits for tonal flexibility True bypass, analog design with incredible signal-to-noise ratio Roadworthy all-metal chassis construction 9V DC supply or battery capable (not included)