Electro Harmonix Hot Wax Dual Overdrive PedalThis dual overdrive is a combination of two excellent sounding pedals from Electro Harmonix: The Crayon full range overdrive and the Hot Tubes, a reissue of the classic 1970's CMOS overdrive. Use them separately or together with the Crayon driving the Hot Tubes. Sounds great on guitar and bass Blend control lets you blend in your dry signal which is especially useful on bass guitar Master EQ section features Bass and Treble for increased tonal control