I'm looking for a detailed, comfortable, spacious set of headphones for listening at work to replace my ATH-M50s, which are kind of dark, rolled off in the treble, and closed in. The reviews I've read on the AKG Q701 and K712 make them sound perfect, with the K712 offering a more comfortable headband at a significantly higher price. I listen mostly to classical, ambient, and world music (e.g., Dead Can Dance and Loreena McKennitt).
Thing is, the Q701 reviews are all of models made in Austria, and I see that the headphone is now made in China. Has this changed the sound and build quality at all? The K712 is still made in Austria, so it seems the safer choice.
I have an Asgard 2 amp, so driving them won't be a problem.
The other headphone that caught my eye was the Ultrasone 2900, but there's scant info available and it's a bit pricier than I'd like to go. There's also the now-discontinued Beyerdynamic T90.
Thanks in advance for any advice!