yep, BR5 is the matching floor stander. BR2 is the bookshelf model. Factor in decent stands if you go for that.
You could also quite happily match it with the RS model up as they have a similar look and sound, only better. I have the GS10s up front but the GS LCR is to big for my cabinet so I had to go with the RS LCR. Its a very good tonal match.