Now, if you thought the HD540s weren't half bad in THAT condition, you really have missed out! Life might yet serve you up another opportunity Mine retained almost all of their finest qualities tonight even through a surprisingly(!) good Pioneer VSX-D512 home theatre receiver I picked up the other day for $30. Amazingly couth and very tuneful with excellent PRaT, I'm delighted with it. The sheer joie de vivre with a set of small Gale Mini Monitors MkII on 70cm stands continues to astonish me and sounds just as fine with the Ref1s and HE400S. I hear you though, you bought the 712s for mixing and mastering, I hope they work a treat for you in that context.