Mad Professor Royal Blue Overdrive USED - VG - no Box no PSU Oktav We design our professional-grade products

We design our professional-grade products to inspire you on whatever musical quest you seek — house rocker

The EXP jack provides further external control options when you connect a DVP volume pedal to adjust the loop’s output level or an MXR Tap Tempo Switch to engage Play Loop Once mode

This all new TAD 6V6GT-STR combines the exceptionally sweet voiced NOS 6V6GT like the RCA or GE 6V6GTY with up to date demand to withstand the higher operating voltages due to raised AC supply

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Troop™ mode blends all 3 overdrives in parallel

Mad Professor Royal Blue Overdrive USED - VG - no Box no PSU Oktav We design our professional-grade products