Its a bit overkill maybe..lol. Older El Whappo on bottom and a Newer Neo Whappo Jr on top. Driven by Crest CA-09 using BH-420 as a preamp. Damn this thing shakes the house!!!! Definitely won't be over-run by any guitar amps though!!! As you might be able to tell from the pic, I am mainly a guitar player..I joined this great site when I decided to do a bassment studio/jam room. I needed to learn what was hip in the bass world, what better place than where all the pros and afficiandos hang and talk bass gear!! I wanted something that couldnt be over run by my big Sonor drumset and Guitar amps I have...and yet stay clean sounding. Think I got it! Im a pretty thrifty shopper and almost always buy used high end gear..so for reference for those on a similar misson..the stack ran me $2250 for the Cabs/CA-9/BH-420 ..I think I did pretty good. I want to say how great a resource this site is and how cool the people are. Thanks everyone for all your great and informative posts!!