Built with a wide gain spectrum and independent, Custom Audio Electronics-designed clean boost offering up to 20dB, the MXR Boost/Overdrive brings boutique quality and decades of MXR pedal-building technology for a multi-foliate effect. Intended to be able to sweep from a warm, bluesy boost straight on to a metal buzz saw, the Boost/Overdrive is essentially three pedals in one, saving on board space and funds.