It is never particularly convenient for me to listen to a desktop system.
I would be surprised if SQ is of prime importance for background music, though it might as well be good.
I have an old system in my study with Proac EBS speakers but I almost never switch it on, I can't work with music in the background, so I either listen or work!
On the odd occasion I put music on whilst I am at my desk I don't really notice the SQ, though that could be because it isn't bad.