[linux-audio-user] Edirol UA-25: Any issues?

Hi, I'm looking for a device, mainly to get better audio quality as my Aureon offers (16Bits only), and to record some acoustic guitar and mics. AFAIK the Edirol UA-25 works plug and play with snd_usb_audio, but still some questions: * I read it is bus powered; but I wonder how can it get 48V phantom power from the USB bus?!? * I read somewhere on the web that there was a little hiss on the inputs. Can anyone confirm this, and is it OK or too much? * Can I use both outputs at the same time to connect all of them to different destinations? Do they appear in ALSA/JACK as 2 or 4 different ports? * Last but not least: Does it run at full duplex (2 ins and outs at the same time), and what latency can it provide (the lower the better :) ? Best regards ce