Looking at these two used speakers. I realize that the Studio series are generally higher grade, at least the v5 is, but wondering how the v2 might compare to the BX5. Room is 15 ft x 40 ft (include kitchen and dining, but most listening would be at one end where speakers are). Powered by Yamaha RXA730 receiver. Listen mostly to folk at low-moderate volume. Any help/opinions appreciated as I'm unable to listen to both.