I just had the opportunity to play thru one of these today. I A/B'd it with the TC Electronics Head both going thru the same 2-12 TC Electronics cabinet. AMAZING!!!! Tight, Clean, Warm, and No Noise in a 1/2 rack unit and $699 vs. $999 for the TC. http://www.swrsound.com/products/search.php?partno=4415000000 I feel a bad case of G.A.S. coming on.