The gsx-mkII will sum balanced to single end, so I imagine the converse is also true. If I understand correctly, however I don't think there is much to gain going SE in to balanced out. (this is speaking of the headphone amp and active preamp. With loop out what you input on what you output;this is the definition of loop outs).
Wa5 vs gsx-mkII I'm sure I read something on the woo topic. I think maybe ask dubstepgirl?
Found it:
http://www.head-fi.org/t/428570/woo-audio-amp-owner-unite/30585#post_10752167
Thanks, I hadn't read that post yet, good info. But reading further in the thread made me re-add the Bakoon HDA-5210mk3 to my list. (the post was about the Bakoon HPA-21 though, but from all I have been reading the Japanese amp should be better for my phones).
DSG already gave me some good info here: http://www.head-fi.org/t/632948/the-headamp-gs-x-and-gs-x-mk2-thread/3405#post_10753582
Frank I compared the GS-X and Woo WA5
here
Thanks, I had already read that one though.
But his comparison with the Woo applies only for the HE-6. At the end of the comparison part he mentions that the GSX shines with all other cans.
That's a bit the problem I encounter whenever I search for comparisons on these amps, they are always tested with a HE-6, LCD or HD-800 and the phones I use are on the opposite side of the spectrum. I did find impressions on them with the TH-900 though, but never a comparison.
To recap my findings so far:
- Headamp GS-X MKII:
Advantages: about the best SS amp around, pairs very nicely with TH-900.
My worries: maybe more on the analytical side of neutral, too clean for me?
- Woo Audio WA5:
Advantages: Top tube amp, pairs well with the TH-900 as well, more to the euphonic side of neutral.
My worries: maybe background noise due to being too powerful for the TH-900?
- Bakoon HDA-5210mk3:
Advantages: always described as very good with TH-900, black background, warm mids, more euphonic than the others.
My worries: probably not on the same level of the GSX or WA5.
I don't need the most juicy amp though, just want the best quality and matching with my kind of phones.
Decisions, decisions, ...