I owned the A21+. Loved it! I “upgraded” to the JC5 and frankly can’t tell much difference in my setup. Can’t speak to the PS Audio, but I can’t imagine you would be dissatisfied with the Parasound.
Sidenote. I had an A23 and wasn’t really happy with it. Many have mentioned it. It sounded very “thin” to me.
Sidenote. I had an A23 and wasn’t really happy with it. Many have mentioned it. It sounded very “thin” to me.