What exactly is a digital amp?


I've started to hear a lot about digital amplifiers, but I am in the dark as to what makes them "digital". What distinguishes them from a non-digital amp?
Any thoughts on their pros/cons, appropriate applications? Who are the major players? Thanks, Jb3
jb3

Showing 1 response by unsound

Daltonlanny, I think the TacT is probably the purest expression of a "digital" amp(?). In this case it's not really an amplifier at all, it's really a converter of PCM to PWM, as such it doesn't need those parts to perform. Whether or not it compares to traditional ss technology is still to be answered. I've have only heard a couple of examples in less than ideal circusmstances. One product in a few different rooms with different equipment and an all TacT system. The first one didn't impress me, the TacT impressed the heck out of me. I am reluctant to make recommedations though, as the audition was to brief and compromised. It's interesting that both Rowland and Audio Research are actively pursuing this technology. Audio Research seems to be taking a very conservative approach (is anybody surprised?) and Rowland a more aggressive one. I am very excited by the possibilites with this new technology!