The Holy Grail of Mesa preamps. Built when the Mark III was just coming out, artists wanted a single preamp that would capture both the hallowed IIC+ in addition to the newer III. Really two circuits in one with separate tone controls, EQ, etc.

Includes the original FU-2A Footswitch and Midi Mod. The rack ears are newly fabricated - not all came with rack ears and they are no longer made.

"Each channel offers two modes and a pre-assignable 5 band graphic equalizer. Channel 1 is very similar to the Mark IIC, while Channel 2 is very much like the Mark III. These were the premier guitar amps for the last five years, winning the praise of such guitar giants as Steve Lukather, Lee Ritenour, Michael Landau, Stevie Ray Vaughn, and many more. We found that many of these players used more than one amp and switched between them for different sounds. A great idea but very heavy and bulky to move requiring custom made switching systems. Thus, the need for the Quad. Two incredibly versatile amps in one taking up a mere three spaces in your rack."