Pass XA30.8 vs Luxman m600-a vs Hegel H20

Thanks, Al.
Thats a relevant point and I will contact Goldenear to have a better insight into this situation. Nevetheless, I'm running them with a Mark Levinson (balanced design) and also listened to them with Gryphon (balanced as well). In either situations without problems.
One thing I noticed when I got the speakers is not only the power cords don't use the ground but that the speakers DO NOT have a ground contact (meaning that even if I use an aftermarket powercord they will not be grounded). 

Good!  So it may very well be ok to connect the speaker to a balanced amplifier.  It hadn't occurred to me that it might use a two-prong AC receptacle.  But a rear panel photo I just found via Google shows what appears to be an IEC type C18 inlet, which (as you indicated) can accept a three-prong power cord but omits the safety ground pin.

I suppose that part of their rationale for omitting the safety ground pin, in addition to perhaps double-insulating the internal AC wiring, is that in contrast to separate electronic components there is no exposed metal that might result in a shock hazard if an AC short to chassis were to develop.

Good luck.  Regards,
-- Al
 

Al,

I got feedback from Goldenear and I have nothing to fear from using a balanced amplifier. Actually they use Pass Labs amplifiers to demo the speakers very often (as was the case on the CES 2016 edition)

cheers,
João

All the amps you mentioned (with the exception of the Hegel, which I haven't heard) is world-class, IMO. I've been particularly impressed with the upper-end Luxman gear, but the Pass 30.8 (with the right speaker load, which you have) is top-notch as well. I don't think you can lose either way. The Luxman MIGHT be a hair richer-sounding than the Pass, but the 30.8 MIGHT have the edge in ultimate resolution. This is just based on my very informal listening experiences with the two of them, so take my opinion with a hardy grain of salt..

The only thing I don't like about the Hegel is that it is made in China. I only buy products made in U.S.A, Japan or Europe.