The Metropoulos Amplification Supa Boost three-band EQ and boost running at a high internal voltage by a company known for their high-gain amps refining the Plexi tone. The pedal’s FET transistors add an additional gain stage to your chain.

The first Metropoulos pedal!  George took the boost circuit from the Metro-Plex, expanded on the tube emulation and added the tweaked plexi tone stack (Treble, Middle and Bass).

Custom designed power supply converts a standard 9V tip negative (Boss style) power supply to high voltage to power the FETs.  Requires only 200mA.


The Supa-Boost is a “clean” boost pedal, it does not distort the signal.  Instead, it becomes like an extra gain stage in your amp, pushing it to do more of what the amp already does.  Add up to 20db of gain and frequency shaping to your signal before it hits the amp.  You’ll hear even order harmonics stack up even without adding signal gain. You’ll also find your amp retains more clarity when rolling back your guitar volume.

True bypass operation.

The Supa-Boost will wake up dull, lifeless sounding amps.  Or it will pummel great amps into new sonic territory.  It is like the best tube screamer ever for tightening up your tone and pushing it forward.