Hi guys. Where do i start.. hmm. Well, like anyone else, when i started off playing bass, i immediately noticed Ampeg as the industry standard for bass amps. I always meant to buy one eventually, but the only thing "Ampeg" i ever owned was an Ampeg 8x10 cab. I've owned GK things, Mesa things, Acoustic things, Tech 21 things, but never a head from Ampeg. One thing kept me away; EVERYONE in all of the mainstream bands uses one these days. Along with an 8x10 cabinet. I just didn't like the idea of having the same sound as everyone else. Lately, though, i've been really digging the all tube Ampeg "grind" sound. I also like the clean sounds. I like my Mesa stuff that i'm currently using, i just think that it's time for a different sound, and i want to go all tube. i've been strongly debating buying an SVT-II (pro or non pro. Is there a difference?), but i've heard that they constantly break down, are unrelyable, and cost a lot to maintain. DO you have to switch the tubes often? I realize that Ampegs have a slightly slower attack because of the tubes, but i don't really play fast music so that's not a problem. I just don't know if buying one is worth it in the end, because it costs so much money, i can't just go and pick one up on the spot. I have to be sure. Any comments about this or advice is nice. Thanks guys.