Bbro,
The only difference physically between a 20R and a 20.1R is that there is magnets both in the front and in back of the bass and midrange panels on a 20.1R and only magnets front/back on the bass panel on a 20R.
I have spent much time comparing the two speakers and can honestly say if there is a difference between the two speakers sonics it is very slight. Maybe, at very high volume the 20.1R's might hang together a little bit better, but I never play my system that loud anyways.
That's way I never upgraded from the 20R's when I had the chance years ago. In my opinion,both speakers only perform at a magical level when you use an active x-over, biamp, and put them on MyeSound stands. Hope this helps.
The only difference physically between a 20R and a 20.1R is that there is magnets both in the front and in back of the bass and midrange panels on a 20.1R and only magnets front/back on the bass panel on a 20R.
I have spent much time comparing the two speakers and can honestly say if there is a difference between the two speakers sonics it is very slight. Maybe, at very high volume the 20.1R's might hang together a little bit better, but I never play my system that loud anyways.
That's way I never upgraded from the 20R's when I had the chance years ago. In my opinion,both speakers only perform at a magical level when you use an active x-over, biamp, and put them on MyeSound stands. Hope this helps.