as muddled as most of us, esp if you add WAF/looks, altho "priority is 2 channel music" and "trying to achieve realistic and enjoyable reproduction of music" are clear enough, allowing that there may be conflict between "realistic and enjoyable reproduction".

IMHO, the better forum for knowledge on sat/subs is

http://www.avtalk.co.uk/

where the balance of interest is in AV - tho music matters too. Have a look & post there also for  different take.

I had standmounts and was investigating sub as 'foundation', and have now moved to floorstanders.  But tho I've reached a destination (way-station) for front end, I have long way to go on speaker-journey.