This is a decent amplifier that allows you to stream external music sources (as well as play dedicated sources including via RCA and USB) to attached stereo speakers.

I said this is an excellent amp, and I enjoy the flexibility of having it plugged into a system that I can stream a virtually unlimited source of pop material into it and hear that material better than I have ever heard it before

A competently executed flexible source of stereo or even 2.1 sound.