Spendor S8e vs Spendor A7 vs Spendor SP1/2 vs Harbeth SHL5

I can help with two of the four -- I owned a pair of Spendor S8e speakers that I sold to move on to a pair of SP1/2Es. Rather than retype a bunch of stuff I've already written, see my review here: https://www.audioasylum.com/reviews/Speakers/Spendor/1-2E/speakers/27/274196.html

I've also heard the Harbeth's at a dealer's showroom, but in my case I preferred the Spendors. While Harbeth speakers and the classic Spendor line are both closely related to the BBC thin-wall design, they are slightly different. As you can see here, some prefer one and others prefer the opposite. The OP is the only one who can decide which camp he's in.