Hi. Anyone here using the apogee duet? Been hearing great things about the sound quality in this thing (preamps, converters) and I have been getting the impression that this is as good as it gets for the price range and Im wondering if I should check it out. Im currently using an Echo Audiofire 4 which also is known for good preamps, but Im curious to know if theres a big difference in sound quality in these two soundcards? If anyone here has experience using the Duet and other cards, please share your opinions. Thanks!