The Tyr clean boost adds 20dB of boost to your signal with no distortion, and no boost to particular frequencies. This is a true bypass pedal that can be powered from a 9-18V supply (center negative). Powering with a voltage higher than 9V will not increase the gain, but it will add clean headroom.
Input Impedance: 7Mohm
Output Impedance: 550Ohm
Power Supply: 9-18V Boss Style (center negative)