Does exporting tracks and importing them just to save busses lose quality?

[EvanHilz]

here is my situation: i'm using logic which i don't know too well, i'm pretty sure they only have a few busses available to sum tracks but i can't figure out how to send multiple tracks to just another audio track like you can in pro tools. if you can't, would soloing the selected tracks (for example 2 mics on one guitar pass, the same performance) and exporting it or bouncing it down then importing it back into the session lose quality in the process? thanks.

 

[aviv]

it shouldnt dude, just make sure it has been exported at the same sample rate and bit depth as it was recorded