Hi RichB,
I was using the Oppo 105 (international version, plays anything from anywhere) directly into the A21 until the P5 arrived and it sounded great to me, so much so that I began to wonder why I needed a preamp. The SDA's are simply an old man's fantasy, I know there are probably better out there, particulary from England, (I'm a Brit). I couldn't afford anything nice for the longest time, an out-of-work single father with two kids. But now I figured I'd buy the old dream and fully mod them with new "Monastery" crossovers from vr3mods. And I'm happy, not likely to change anything before the grim reaper comes calling.
So Richard (Richard Schram Parasound CEO) did write back to me:
"We received a few reports of P 5 volume controls making a slight noise when adjusting volume:
a) at higher volume levels
b) and playing music that contains heavy bass content
We can change the volume control for you. Please call our tech dept at 415 397 7100 x120"
I must say mine is very noisy at any volume, like an old radio, but this will be fixed I hope before Christmas.
Which reminds me Happy Holidays everyone!