FWIW to help out here's the 1961 vs the two 1723 spec comparison
You could look at available measurements:
The Arendal 1961s tower loudspeakers are first-rate by any standard and all the more remarkable when one takes into account their reasonable $1,800/pair price and modest size. Read our review.
www.audioholics.com
Stunned by Arendal Sound’s 1723 THX monitor performance, we wanted to see if the more manageable sized 1723 S series tower could deliver similarly great sound and value. Read our review.
www.audioholics.com
Maybe
@shadyJ can offer his advice.
Curious, why are you set up with speakers along the long wall? If the better speakers are important, why did you spend so much on those particular electronics?