I recently purchased the ARF51 in beautiful piano black for a dedicated turntable set up.
Just the turntable, phone preamp and the speakers (and i had to add a volume control). So the entire chain is analog from start to finish.
The Elacs with the built in AB hybrid amps all analog sound really nice. Missing lower bass extension but the hi and mids are sweet sounding to my ears. I listen for hours without fatigue. I'm looking around for something powered that's bigger but would keep these (started a thread on that).
I hope Andrew builds the same design but with say 8" woofers in a larger enclosure for better extension. Then he has me as a customer and advocate for life.
P.S. Their customer service is terrible. They don't answer the phone, they don't return voicemails timely (last left one 2 days ago) and they don't answer emails for days. So I posted on Facebook social media like where are you guys and then they answered me pretty fast -- leave it to the fear of social media reaction.
Again, given my Uni-Fi towers, multiple 5.25" woofers and that size cabinet is plenty capable of delivering satisfying bass down to 40Hz or so (which should be plenty low for analog records). Even with an 8" driver you're not going to get too much below that.
I posted in the other thread again, but perhaps you should consider a better preamp...one that has tone controls on it.