I am from Toronto (yyz) but now live in Santa Barbara, CA. There is a great CODA dealer out of Winnipeg I forgot the guy’s name. Doug at Coda can give you the dealer info for Canada.
Your room is much better than mine for audio. Whatever, you put in there can be made to sound great. Even a floor stander would work in that space. If you are in Toronto, go to Kennedy HiFi and listen to the Yamaha NS3000 monitor. I have the NS5000 speaker in the Livingroom and it is much better than the LRS+. I love the LRS+ in the office but the NS5000 in the bigger space is something else. My friend Danny was raving about the NS5000. My intention was to get the Yamaha NS3000 monitor from Canada (not sold in USA) and use with the KEF KC62 sub. However, the LRS+ made that moot. Do not let the Yamaha name fool you, this is Magico, Vivid, et al level audio genius.
The Sanders amp was built by CODA long ago on Sanders specs. I like it more that the CODA #8 amp (splitting hairs). The #8 would work great with any speaker. The new CODA S5.5 I do not think would be ideal for the LRS+. Would be amazing with the NS3000.