Hey Guys, I used to own a Quad and it was completely bad ass. I was especially fond of the 1st (top) channel- rhythm 1 and Lead 1. I also owned a Mark IIC later on in life. The Quad manual says that channel 1 of the Quad closely resembles the Mark IIC. My experience hasn't shown that. My 100w Mark IIC was thinner and gainier than my channel 1 quad sounds, and the clean wasn't as good either. About 2 weeks ago I played a Mark III that reminded me of the channel 1 on the Quad- oddly enough... Does anyone have any strong opinions (backed up with experience) about which Mark amps sound closest to channel 1 on the Quad. I'm thinking about trying to get that sound again. Thanks!