I had the chance to listen to an SR-007 MK2 on my STAX setup at the Houston meet last month, first time another STAX besides my modded L300 Limited has been on it. Setup is RME ADI-2 DAC > NAD C275BEE stereo amp > Mjolnir SRD-7 > modded SR-L300 LEs. They guy who had the SR-007 MK2 was using a KGSSHV based rig that was having some issues so I suggested he try the 007 on my setup. Absolutely love the L300 Limiteds on my setup... and the SR-007 MK2 were immediatly noticed to be better in subbass impact and finer details. Subbass from my L300 Limiteds is noticeably beyond my Argon Mk3 with ZMF Lambskin pads (which I LOVE BTW and is properly driven from a modded Gustard H10 amp) in impact and overall presence, and the SR-007 MK2 are even noticeably a little beyond that. STAX are NOT bass light properly driven... Had perferred the Lambdas from my brief listening experiences before actually getting my STAX. Had previously listened to SR-007 Mk2 on a Yggy/Carbon CC setup, Stax L500 from same setup, and SR-009 on Mojo/STAX driver I can't exactly remember but was similar to a modded SRM-Xh. I actually preferred the sound of the 009 setup over that of the 007, but the L500 over either Omega. I would say it all depends on the amp you use though...the sound quality will only be as good as the amp and DAC. Being I already had an excellent stereo amp is the reason I went with a Mjolnir SRD-7 based setup to begin with and I couldn't be happier. Much cheaper route than full tilt 3rd party electrostatic and I absolutely love the lowend, fullness, and detail the NAD C275BEE amp brings out. If an excellent amp and DAC are used then I can't see anyone being dissatisfied with the sound quality of a Mjolnir SRD-7 based system. And now that I've heard the SR-007 MK2 on my setup I absolutely would love to try out an SR-009 and SR-009S on it.