So I've read a lot of posts lately about "clarity" when it comes to tube amps (and any other amp for that matter). Well, I think I've hit on something. I did a lot of experimenting lately with different amp/cab combinations. I borrowed gear from all of my friends just to bring it home and try it out. I think I have finally realized what a lot of you already knew. For those of you (like me) who didn't listen to the advice of others, here goes. The single largest factor that I found that will add "clarity" to your tone is....wait for it....HEAD ROOM! (What the heck are you talking about?) I've noticed for years that the best sounding PA systems that I played through had a lot more watts worth of amps in their racks than the speakers were rated for. Well now I know why. I recently (yesterday) bought a new rig. The amp is rated at almost 1 1/2 times what the cab is rated for. It has a tube preamp and solid state power. As I found during my experiment, the "clarity" is amazing! No mud! Even when I dial in the warmest, fattest tones the amp will get, still clear (and trust me...it will get warm and FAT). Every time I hooked up gear during the "lab testing" I did, that ONE FACTOR did more to clear up tone than any tweeking of the knobs, combination of speakers, even new strings! I'm assuming (and hoping) that somebody really smart is going to swoop in and tell me why this is the case. I'm not saying that if you put a really craptastic 2000W amp on top of some really craptastic 20W speakers that you will have created a tone beast. But after trying 11 different heads and 17 cabs in almost endless combinations, I feel like I've really picked up on something. I hope this will help some of you so that you won't have to drive your friends (not to mention your wives) crazy bumming gear and killing the chance of any real dinner conversation for months. Cheers! P.S. Using speakon connectors rather than 1/4" also made a difference in high powered amps. But that's a topic for another day .