Originally Posted by CT_Wiebe Defcon
Digital amps fell out of favor because, unless the output filter was designed right, they could output a lot of very high frequency noise to your speakers (which could, ultimately, damage your tweeters). The poorer quality ones also had a significant amount of distortion in the upper frequency ranges. The output filters also can consume a fair amount of power.
I really doubt this is why they fell out of favor -- there have been and even still are plenty of badly designed AB amps.
The main reason, IMO, is that it's harder for the manufacturers to maintain high margins with them, with a straight face, at lest.
Marketing still pushes heft and esoteric components as necessary for quality, and the flunkies at the A/V publications do their bidding by "hearing" the "superior presence" of the 80lbs boxes made by their major advertisers.
I went from a Class A Pass Aleph to a Panasonic XR57, and my Gallo Solos have been just as happy and sound just as good
I am not going back to a big box.