An ideal (minimal) 2.1 setup

OK,  your focus is music and you seem not interested in the deepest bass for movies. I get it I used my system the same way. Stand mount monitors, no center channel or subs. Wonderful holography with both movies and music. If I had a sub I would not use it for music.  I am on the side of going with the speaker that most pleases you when in music mode.

One thing you may want to think about.

My stereo does double duty for music (mostly) but also sees heavy use when watching movies and also regular television programming, via my cable box, which can have great soundtracks.

I strongly prefer the silk dome tweeter for music, but sometimes think I may prefer a metal dome tweeter for dialogue. 

I have owned many Spendors. I doubt that you would go wrong with the A4! If you want to go with a standmount and a sub the A1 would be another consideration!

Sorry I can't offer an educated opinion on the two options you have, but my apologies that so many respondents want to address issues other than yours.  It's a simple question.  I use my audio gear like you do and use it  2.1 for movies.  No problem with dialogue/center channel. 

Thanks, I think the last few posts got my dilemma! I don't care much for bass. I'll go with Spendors then.