After reading this thread so far, a couple of you guys (recstar and smeggy) are scaring me just slightly more than a little.
The only time I really liked the HP2s were with Frank Cooter's set up at MOA, and with Johnny Number's HD2, even though I've always appreciated them. I've really liked the L3000 every time I've heard them, even when I was in a bratty, pouty mood at a mini-meet. After announcing to everyone that all their new gear sucked and meaning it (Transporter, Woo5, GS1000s, D5000s), I sat curled up on a sofa and listened to a baseball game and bad Creole music on a Clix2 radio, unamped, and was perfectly happy. Yep, they're that good.
Oh, I've never heard them with the Zana.