Hi all -- my Acme Flatwound is getting zero use, so up on the block it goes. Never gigged, but recorded with it once, and it was awesome (nice to not need separate mics for a tweeter). Note this is a 4-ohm version, which IMO is a perfect mate for the 500w micro heads out there. That way you can maximize the clean headroom of the amp. I've run it with both my TecAmp Puma 500 (pictured, but not for sale ), in addition to my GK MB500. Sounds HUGE with both! Also please note, I'm still a dyed-in-the-wool Acme user, and my B1 is a mainstay -- just haven't had a use the larger Acme to date, so now it needs a good home. $399 takes it, local NYC pickup only!