XP Booster--Clean Boost
Uses the highest quality parts available with a discrete FET design and low impedance output, the XP Booster provides up to +20dB of unadulterated boost with multi-dimensional, shimmering highs and lows, and no ear fatigue. The internal DIP switches let you choose the boost frequencies, and EQ settings.

Features:
Small Size, Big Sound
Single Knob Controls
Internal DIP swithes
Input Impedance: 1M ohm
Output Impedance: 1k ohm
Dimensions (W/D/H): 92mm X 38mm X 36mm
Weight: 128g
True Bypass Switching
Power Consumption: 9VDC or 18v
AC Adapter (Optional): 9VDC or 18v, Negative Tips (Regulated recommended)