A pedal has been released that recreates the "Ultra" channel of the classic 90s amp, Peavey Rock Master! The original Rock Master preamps were popular for their power and versatility. This pedal recreates that sound in an easy-to-use format. -TransTube is a pedal that recreates the groundbreaking Peavey Rock Master(R) "Ultra" channel circuit (circa 1990). Internal HV TransTube supply from standard 9V power supply/battery Hard bypass switch (with anti-click circuitry) Pre-gain and post-gain controls Gain and mid-shift selector switch 3-band active EQ (Bottom, Body, Edge) Independently tested and approved to comply with EMC and FCC standards worldwideControls: PRE, POST, SHIFT button, BOTTOM, BODY, EDGE, GAIN button dimensions (When packed): Approx. W13.0cm D13.0cm H8.0cm Weight: Approx. 490g (Body size): Approx. W9.5cm D12.0cm H6.0cm Weight: Approx. 390g True Bypass 9V DC powered (battery or adapter, center negative)