Fender Prosonic Amp

condition. Just serviced before Xmas with 2 new power valves I can't find the footswitch for it but they're easily got online. .It has a great `Fender` clean channel and great `lead` channel. It is an extremely loud amp and sounds fantastic . I am selling as I don`t need the power.It isn't any way as heavy as a Twin as it has 2 x 10 speakers,which are staggered to reduce size. These amps are very difficult to find. Made in USA. The Prosonic introduced several features that had previously been seldom, or never before, seen in Fender amplifiers. Its most unusual feature is the switchable rectifier and power amplifier bias scheme, allowing on-the-fly changes of operating mode and output power (as well as subjective tonal differences). This feature, originally found on Randall Smith's Mesa Boogie amplifiers, allows the Prosonic to achieve a versatility very rarely seen from mass-market instrument manufacturers. The Prosonic's rear-mounted RECTIFIER/BIAS switch lets the user select from the following three options: Solid-state rectification with fixed bias (marked "S.S. AB2"). Listed at 60 Watts R.M.S. Tube rectification with fixed bias (marked "AB2"). Listed at 50 Watts R.M.S. Tube rectification with cathode bias (marked "A"). Listed at 30 Watts R.M.S. Unlike many amplifiers marketed as "Class A", the Prosonic truly functions as a Class A power amplifier in the "A" position. Class A refers to the amount of current flowing through the power tubes with zero audio signal, with Class A meaning maximum current flow even with zero signal. This makes the tubes run hotter, and gives the power section even more gain at the cost of tube life and noise. The Class-A designation for guitar amplifiers is often a misnomer, as heralded amps such as the Vox AC-30 also do not operate in a true Class-A mode. While the Prosonic featured cathode bias in the Class A mode and fixed bias in the Class AB mode, not all class A tube amplifiers are cathode-biased, and not all fixed biased ampli