Thank you for trying to convince me with the values of the device you recommend me to purchase such as PD. WHY ?.
again; i'm not sure what you are asking but i will try to respond.
WHY?
why do i write about the Playback Designs? it's what we do here. we talk about our experiences. particularly when someone (in this case you) asks a question.
why do i try and convince you? i don't look at it that way; i'm sharing my perspective, not intending to convince or not to convince. i have no 'agenda' other than to enjoy the community of fellow audiophiles.
did that answer your question? if not, please ask your question in more detail.