I just want to add an additional comment on the planar magnetic tweeters and midrange drivers used in the Aspen speakers. All four of the Aspens use the same planar tweeter. The FR30 and FR20 use the same planar midrange, while the FR10 uses a slightly smaller planar version of that midrange.
The late Tony Cordesman, a highly respected audio reviewer, made the following statement in his 2022 review of the FR30 in TAS: "the FR30's midrange and high-frequency sound quality was the best I've heard from any speaker to date." He also praised the bass produced by the FR30, as long as the user has a listening room that allows for deep and well-distributed bass.