This interface is constantly being raved about. At $500 for a two channel interface, one might expect it to be worthy of rave reviews. But I, and many other people, have experienced lots of HISS and NOISE when recording with this device. Here's my story (google "Apogee Duet and Hiss" to find hundreds more): I am getting a tremendous amount of noise and hiss from an Apogee Duet I purchased last November. I just recorded with it for the first time last night. I'm using a Rode NT2 mic plugged into Input 1 on the Duet. The Input setting is for XLR Mic (so please don't bother mentioning the +4 or -10dB settings, thank you). I brought the levels up to where I got a proper level for my acoustic guitar (no amp). I noticed a HUGE amount of hiss. I also tried what another poster said in another thread (http://discussions.apple.com/thread.jspa?threadID=1957181&tstart=0 and also http://discussions.apple.com/thread.jspa?messageID=9185926�, as well as numerous other posts in different audio forums on the net - just gooegle "apogee duet and Noise), and disconnected the mic from the input, then turned the level all the way up, and I found the source of the hiss: It had nothing to do with my room noise (which is almost non-existent), the hiss came from the Apogee. I'm really disappointed with this. Everyone is always raving about how quiet this thing is supposed to be, but I've never heard an interface so noisy before. Anyone who says their Duet is quiet, please perform the following test before responding: Disconnect the mic from the input; turn on phantom power, and put the level of the input all the way up, and listen with headphones. Do you hear hiss and static? I hear a lot, and this is obviously the source of the hiss on my recording. I can record with an acceptable level of hiss with the input level set to 43 or below. Above that, the hiss is very very noticeable. Unfortunately, 43 is too low to get a proper level for a quiet acoustic instrument. Also getting very buggy behavior with the Maestro software (version 1.7.1). I'm very disappointed with all the problems I've had with the Apogee Duet. This is obviously a very widespread problem, and ridiculous to have in what a very expensive two channel interface.