This is a Brand New Mad Professor Evolution Orange Underdrive (EOU) Pedal.

Like rolling down the volume on your guitar to "Clean Up' your tone...the Orange Underdrive gives you a pre-set level in pedal form.

When you roll down the volume...your tone can get dark and muddy.

The EOU brings the Sparkle back.

The EOU has Treble...Bass...and Midrange controls...in addition the the Volume Cut control.

It can also be used as a Boost by pushing the Mids and Volume up.

This is a great tool for those who Ride The Volume Knob.