I had them both , starting with the A25s as my first sequential set way back in my college dorm days
Both were the start of new mass-produced budget bookshelves geared at the new wave of Boomers trudging off to college.
Both were okay for their time and pricepoint , but hardly memorable by today’s standards . Each had a signature presentation -- The ARs were better with classical and jazz; the A25s with boomy rock and pop of that era.
I upgraded from them to JBL 100s with their own signature non-linear coloured exaggerated boomy bass and pumped-up treble "California " sound, that were even better at popular Geezer Rock than the DYNACOs.
My takeaway:
They were ok for their time when alternatives were very limited; that are only now purely nostalgia fan budget offerings that are easily bested by a bevy of contenders -- and even the pretenders -- in today’s offerings. Speaker design, materials, build and crossovers have greatly evolved .... not even close.