There is just so much fail in the solid state amp. Taking a 40 year old stax design, swaping the output bipolar out
for a mosfet and then surface mounting everything with modern construction techniques, such a waste of time.
more than 40 degrees phase shift at 100hz relative to 1khz. All the bass boost (which makes it even worse)
is not going to fix that issue. At least they could have taken the srm252 design and done the mosfet outputs
to that. Would have been much better. Like another has done.
The headphones on the other hand, I kind of like. Reminds me of sr3 physically. But not built as well.
Sound quality on par with cheaper stax, and esp950. Slightly different presentation.
But when you compare $, not really a bargain as a system.
usa price with amp $1k more with the tube amp
stax 2170 price $850, price from japan $550
esp950 price $650 to $800
So buy the headphones definitely for $500 and hook them up to your favorite stax amp.