US Price (Linear USB): $1499
Manufacturer: Lehmann Audio
Distributed by Henley Designs
Tel +44(0)1235 511 166
I"m happy to see HiFi+ reviews appearing here, but you should take the time to find out what the U.S prices are. I can easily convert the dimensions from metric, but that won't work with the price.
You should take a look at the Lavry DA11. I drive my HD800's with the Lavry and it has NO problem whatsoever reaching uncomfortably loud levels. Most reviews I've read prefer the DA11 over the m902 in terms of both as a DAC and as a headphone amplifier.