I tried them on the Crack, but their sound became a bit loose (due to impedance matching issues I think). What OTL have you used them with?
I'm intrigued about the mods (although reluctant to mess with a limited edition). What sort of things get done? I feel like thicker pads to move them away from the ears a bit would be beneficial as a start (and something reversible)
Yeah I experienced the same, it was just "ok" out of my Crack but the Crack is absolutely good sounding with the 300ohm 5/6/650 Sennies.
Tried the Chazz II, few of the DV/La Figarro amp's and a custom made integrated amp that I had the correct impedence matching out of a dummy load box on taps.
The drivers in the 011's are absolute gem's, they don't do distort even on high volumes, I had a vintage 70's JVC integrated amplifier that had a hp out jack, maxed out on the bass dial's and omg, my 011's almost blasted my brain's into mush.
Yep they sure do. In some area's it gave my LCD2's a run for it's money besting them on certain aspects on different passages of the same music source used.