@brylandgoodman I’m a good friend of Vlad’s and know his amps well, and have had experience with your preamp once.
I’ve advocated a lot for the Joseph Audio Pulsars in past threads, but I should ask - do you plan to put the bookshelves on stands? If so, one speaker I would highly recommend you look at given your system is the Scansonic MB-2.5B. It is basically a small floorstanding speaker that has the form factor of a narrow bookshelf on a stand, and it weighs that much as well. That said, it delivers a really clear, engaging sound (think Raidho and Borresen, as Michael Borresen originally designed the MB series). They would work really nicely with the AM Reflection amps.
The MB-2.5B will also dig deeper than most bookshelves given its cabinet size. It is also bottom ported, so it can be kept closer to walls. It’ll fill up to medium-sized rooms (around 18ft wide) without the need for a subwoofer.
Some people look negatively at Scansonic, but that’s typically because of poor amp matching. They require high current amplifiers, and the AM Reflections will wake them up and properly control them.
Just like Raidho and Borresen speakers, they image and soundstage exceptionally.
I am an authorized Scansonic dealer, but I purchased the larger MB-6B prior to being a dealer by trade. They unseated my $25K Wilson Yvette. I thought the line was such a n incredible value that once I became a dealer, I had to take them on.