I've been recording for fun for a few years and was a little frustrated by how inferior my stuff sounds to real pro studio stuff. I have a Firebox, GT55 condenser, Shure beta58a, sm86 condenser, pg58, Cubase sx3, waves plug-ins, Joe Meek vc3 and Presonus tube pre. I stumbled across a deal on a UA LA610 pre/compressor/eq channel strip for $800 and thought I'd take the plunge and try to upgrade my sound- basically get a better signal into the box in the first place. I am pleased enough so far with the LA610 but I still wonder if new converters would help me out. I see I can get a Mytek adc 96 for $500 on eBay. I mean it is starting at that and that's about all I'd be willing to pay for something that I don't know the true condition of. Anyway, could I buy this and hook it up with an S/PDIF in to my Firebox and suddenly have a pro interface? I doubt it is this easy. I mean, it sounds like the converters in this thing are even better than the RME Fireface. Can I just bypass upgrading to a Motu or RME, grab a deal on used converters, hook them with a simple cable to my Firebox and be in business? I'm a little confused about "clocks". I understand they are important. I guess this thing has one built in while the Firebox uses the clock in the PC? I read the manuals to the Firebox and this Mytek, but I still don't totally understand if they can work together or if the Cubase s/pdif is all I need or whether I should have an optical cable or something- which the Firebox doesn't have anyway. The Mytek can convert two channels? I guess since it is digital, I can get two channels in through the S/PDIF in cable even though it is only one cable in? Would the Mytek be a 1/8 S/PDIF pin out to my female S/SDIF in on the Firebox? Yes, I've looked at the diagrams? I just have never seen this stuff in operation before. Would a vocal recording setup look something like this: mic to UA LA610, mic cable out to Mytek ADC 96, S/PDIF out of Mytek into back of Firebox into computer. If I have a second pre, can I play an acoustic guitar and mic that and put it into the other Mytek channel and record it simultaneously? Obviously, ideally, I'd record guitar and vocals at separate times, but basically, could I record two channels at once through the Mytek? That's all I really need. I've heard some comparisons between a Digi 002 with the built in converters and a Mytek adc 96 with vocals and acoustic guitar on this forum or another and I thought the difference was quite clear. I really have simple needs but I want a single recording channel that is as clear and with as much headroom as I can get. I don't have any true pro recording gear except the LA610 and I like my GT55 just fine, but my friends all record on Behringer crap and usb 1.0, soundblasters and the like and really have no advice to give. I, sadly, am the expert of our little group- which is like saying you're taller than Danny DeVito. Not a big accomplishment. But I'm a tryin' to learn me some recording. I've made two CDs for my own enjoyment so far with guitar, bass, drums and vox- several tracks of each. I want to up my game a little.