Rowin Guitar Booster Pedal Clean Boost Analog Pure Signal Amplification Sound | eBay
Do You Need A Clean Boost In Your Guitar Signal Chain? – FuelRocks
Amazon.com: Sondery Boost Pedal for Electric Guitar and Bass, Mini Clean Booster Effect Pedal, True Bypass, More or Less 14dB Change for Frequencies Under 250Hz or Above 1KHz, Art Design Foot Pedal :