I can relate to you regarding hearing loss I too suffer from this condition I cant hear very high frequencies. Its hereditary condition I turned 60 this year so a day will arrive when I will not longer be able to enjoy listening to music as I do today. But still the "glass is half full" today - so I enjoy my musicplayed "Art Blakey's Night in Tunisia" today with my revamped setup and it gave me so much joy. This was recorded in the year I was born they had such good microphones in them days. HDtracks remastered it and it's just fabulous.
I'm using a Linn Klout Power Amplifier, line level inputs fed straight from the DAC. Although it has similar Power specs to your CA it also happens to be very musical too.
Although your CA certainly seems to have the oomph to drive the Speaker I cant really comment on how good it will sound. If you're able to find a dealer willing to allow you to demo the said speakers with your Amp then that would be the best option.
BTW, what source are you using?
i am sourcing thru Marantz SA7001..... planning to add a network player considering my huge collection of FLAC files from torrent days....
regarding the physical limitations... I cant figure out the reason for the same and considering my age factor 40 + i am seriously considering another round of investment :-(