Sound Devices 702
For stereo, 2 tracking, back up or adding 2 more channels (analog or digital) to a pre-existing set up NOTHING beats this for quality, ease of use, connectivity and reliability.
I do a weekly gig, usually with a laptop but don't need it and heavy preamps and their power supplies and cords for the typical 2 tracks I record. One of the usual members who attends these gigs asked me "What happened? I liked watching the computer program and all the complicated screens?" - No need anymore.
If you are hedging on this MY ADVICE IS SOUND DEVICES.
Thanks to Joe James at Sweetwater for making this an easy and enjoyable purchase - a great guy to speak with about products or even Chicago pizza.