@bradf @hilde45 @charles1dad, thanks for your kind words! Now then, my room is a second floor bonus room that has been appropriated as a dedicated listening room and is roughly 14-15 wide, 20 ft long, and with 8 ft ceilings. I'm using a short wall orientation, and my rack is behind the listening position. Amps are on the floor right next to the speakers, keeping the speaker wire as short as possible per Ralph K's instruction. The room is nicely symmetrical forward of the listening position. The flooring is a really nice Luxury Vinyl Plank over OSB, and the ceiling is fairly heavily treated above the listening position. I have a clever arrangement along my side walls that deflects sound from the first reflection zone back towards the front of the room, so that I have suppressed most of the reflections in the 8- 20 millisecond range that is most responsible for compromising image. This is a much better solution, in my opinion, than using absorption at first reflection points.
I have the woofers facing outward, with the outer edge of the speaker about 32 " from the side wall, and with the speaker about 30" out from the front wall as measured to the back of the cabinet. I found, on my flooring, that the speakers performed MUCH better using Herbie's footers that using the Coincident supplied spikes.
Outward firing was much better in this room than inward firing. I suspect that having the woofers firing towards each other in a narrow room gives too much cancelation due to out of phase waveforms
If one is not careful to dial in speaker position and the main listening position, these speakers are capable of inarticulate bass. If one is careful, they are capable of nice articulate bass. This just isn't a speaker that you can plop down anywhere and get it to workup to its potential.
The Auricaps are a nice improvement over the Solens caps. I've used them in other crossover rebuilds, and they offer a nice performance at reasonable cost. The tweeter cap in the SVII is an 8.2 mF cap, so they aren't going to be cheap. I went with Jupiter coppers and have Duelund Silver in parallel. The Jupiters are humongous and went for about $550 a pair. The Duelund Silver parallels added another $200. If I were doing this again, I might try the VCap ODAMs for the tweeter.
This is a tough call for you. If you don't have the luxury of a dedicated room, you are pretty much playing Russian Roulette with any speaker you can't return. Every speaker, regardless of design, is going to have an optimal placement and relationship to the main listening position in a given room, or said in another way, no speaker is going to reach its potential in a given room if you can't accommodate the optimal position. So you will be wanting to find a speaker that is happy with what you can give it. It is essentially impossible to predict that a priori.