Hey there, I'm new to the forum and am glad to be a new member. I am a long time member of the Les Paul forum and look forward to "meeting" everyone here. To start...I play classic rock, 70's-80's metal, blues. I own a Les Paul and a Strat with a humber in the bridge (ala EVH). I also own a Marshall 2061x head, a Marshall 1960a cab and have the Ultimate Attenuator. So yesterday I had the chance to play several different heads in a shoot out. I had the guitar center sales guy set up 4 heads in a circular kind of set up and I went to town for about an hour I had a: new JVM 2 channel 100w head New Vintage Modern Used and pretty beat up tolex JCM 900 head (was $799) EVH 5150 III white tolex head I jammed each one for about 15 min then went back and forth. I soon realized that I didnt need to hear the Vintage Modern. It was just really lacking balls and that Marshall Grind. The clean was muddy. I then stopped playing the JVM mainly because it seemed a little to like a modeling amp. It has the tone there but seems processed in some way...its weird...just didnt sound organic if that can even apply to amps... I then went head to head with the JCM 900 and the EVH 5150 III head. Now, keep this in mind. I am still waiting to try a few JCM 800s (2203, 2004 and 2005). I gave up on the Jubilee thing because I dont feel like spending a premium for the collectability factor. Guitar Center has a mint one for $2,500. They can ship it to my local store to play it but I passed it up on the big price tag. I figured that the JCM900 would be a decent surrogate for the 800 series...might not be a good assumption but it was all I had at the time. So, the JCM900 had an okay clean channel. The lead channel was tight, and really full with lots of growl. It was much more mid rangey and bright as compared to the EVH 5150 III. I really liked the 900's tone and was impressed for its 80s metal tones. The EVH has a really nice clean channel and when you throw a little gain on it it gives sweet bluesy tones. The second channel was really thick, crunchy and loads of sustain. I felt it was giving me that hot rod marshall tone for days. The third channel was a little much for me outside of soloing. But, it can be fun! So, after all that I decided I wanted the EVH 5150 III. I played it all day today and was really impressed with the wide variety of tones. It's articulate and has the 80s metal sounds in there...as well as many others. That was why I decided to get it instead of the 900...versatility and range. So here are my questions... Anyone own one or play one? Thoughts on it compared to the JCM800 or 900s? Also, can I use the Ultimate Attenuator with my EVH 5150 III? I can return the amp within the next few weeks and will be going to NYC to play several 800 models (2203, 2204, 2205). I can always go another direction but I am quite impressed so far. No amp does it all as we know...so I would like your opinions.