As I put my list of equipment preamps, compressors channel strips, etc., together I have assumed that for any decent stereo work I need two channels. For example, I'm looking at the UA 2-610. This is mostly for acoustic guitar and vocals with drums, bass, and keys going in directly. I'm wondering if for good tracking (mixing to be outsourced) I should be looking instead at solid single channel gear, like the UA LA 610 someone recommended recently. Thoughts please.