I run 3) Krell FPB600, 1) FPB300, 2) Krell KAS Monoblock amps (top of rack with meters), 2) Threshold SA/4e (see handles past the rack) & an Anthem STR Power Amp (not shown on rack). The heat from the Full Power Balanced Krell is extreme. I added a second Dyson fan (one is shown in the photo)...