Simply because I don't totally trust its preamps etc...they do a good job but for my main card I want something definitely good. And it's usb and I prefer firewire because I have too many usb gadgets as is. And something metal, sturdy, not a flat mixer style dust gathering thing. Also, if one wants to employ the zooms portability aspect, it would feel strange to remove the only soundcard. I'd prefer to have a good fixed soundcard for the daw and just use the zoom as a recorder. Which it does marvelously well too. I suppose it's just a gut feeling. I don't really have any issues with the r16...it's certainly been worth every penny so far.

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