On a separate, but related topic, I've been considering changing subwoofers and was wondering if anyone had impressions of the digital (D1500 & D2500) subs. Anyone have thoughts or comparisons to the older analog versions?

Studio System: UltraDAC, Analog Speakers, QNAP IS-453S Pro
Theater: Trinnov, 8kSPE, 4 5.2kSE, 7.2HCSE, Analog subs, DSP8000SEs
Roon (running headless on QNAP)