Are there no Hi-fi stores near you with at least one of these headphones? In the city where I used to live (400.000 inhabitants) there were 3 stores that had at least one of these headphones.
You could also take a (small) leap of faith and go for either the VISO HP50 or the Spirit One S without listening to them. If you purchase from Amazon and you really don't like it, you can send the headphones back. I don't think you'd dislike either of those though.
The "VISO HP50" got a glowing review, but then they only rated it 8/10. Didn't make sense to me, the review said... "The Viso HP50, which sports 40mm drivers, plays it straight down the middle -- it's not bright or
bassy -- and it should appeal to audiophiles seeking an accurate sound balance."
But then I have to say, if it's true that it's accurate, as they said, then why did they give it only 8/10? Some things confuse me about reviews. Nonetheless it sounds worth a try, my local store has it listed in stock, so i'll take a listen, and they have the MT220 also, so i will compare.
I won't bother with the "Spirit One S", the review wasn't very complimentary, the review comments following... "As for the sound, these are a lovely, easy listen. It’s a balanced sound, never leaning too hard on any particular part of the frequency range; punch and accuracy of timing are good enough to convey a strong sense of life.Not too much, however – it’s a smooth, laid-back listen. The presentation isn’t particularly spacious or open. It’s not all good, however. For the money, we’d like a bit more clarity and sparkle - particularly around the treble, which feels a little closed-in. The Focals are also lacking a bit of thrust. We like the smooth sound, but we can’t help feel the Spirit One S’s character is a little too laid-back."