I'm more of a class A kind of guy and I'm working on getting my Matchless back from a buyer who isn't really thrilled with it. That being said I love John Mayer's tone and I know he's using TR's. I was goofing around on the Two Rock website and started reading a little about the amps and came across the Onyx. Two Rock says it's the only 2 channel amp they make with seperate signal paths. I had a Fuchs ODS Mod and I know the Custom Reverb is setup a lot like that amp. What is the advantage of this over the Onyx design? Seems like the CR costs a lot more, but the Onyx makes more sense to me. Is there a reason the single eq would be better? Is it made that way for accuracy's sake, to stay true to the Dumble design? Really just curious. I know these amps are great and I have long dreamed of owning such a beast. I tried with the Fuchs Mod, but it wasn't right for me. As I'm saving my pennies I'm just curious which one I should be aiming for. Also, how do the older model TR's compare like the Jade and the Opal? They seem to be the predecessor to the CR.