I'm playing a 2009 Marshall 1974X with a 1968 G12M25 Greenback in it and it NAILS the tone of the 1975 Kiss Album Alive! I've been trying to recreate this tone for over ten years now and I think finally did it! Not Paul's and Ace's great playing of course but the tone itself! I'm using a 1973 Gibson Les Paul Custom with a 1977 DiMarzio Super Distortion in the bridge.