Well...it's been 4 mos since I was lucky enough to find this forum after a 12+ yr hiatus and my first post. I got a new Schecter bass and SWR cab from the wife and son as a gift...."to get back into things"....Oh how quickly things change...when you have a forum like this to learn from and help you spend your money ....since then I've purchased a 2nd bass, a new US made G&L-L2500 and two Aguilar GS112s..all I can say is I'm hooked on the "lows" again and lovin it...it's all coming back to me. anywho...it;s time to upgrade the third component of my setup - the amp. My current amp is a hybrid Hartke 3500 (350w 4ohms)...would like something that tickles the GS112s a little more, hence my search for wisdom.. trying to stay at or below $900 ...and oh yes...I love the tube sound.. From searching the forum it seems that the following are good alternatives to drive the Aggies that may fall in the price range (used): - Eden Wt-400 or 550 - mesa m-pulse 600 - Thunderfunk TFB420 - EA iAMP 500 have I not learned anything from TB?..Am I heading in the right direction? I welcome any comments or additional suggestions ...thanks!