opinion / recommendation needed - I have a mackie onyx firewire 1220 mixer. I also have an 8 channel mic /pre unit that I run through the 1220. I rarely use the 1220 to it's full capacity as a mixer and am thinking about replacing the 1220 with a firewire interface to run my mic / pres through. my mic / pre unit is quite good and I wouild like to keep it but I need a firewire only interface without all the extra bells and whistles and mic pres that the typical interface unit comes bundled with. is there such a beast that won't color my mic pres and still interface well with my DAW?