Resolution Audio Opus 21 questions

I must confess I'm confused as well; I read the sentence as the DIN output bypassing the attenuator circuitry on the Opus 21, allowing the signal to pass more directly to a preamp.

Ardri,

I've done a good bit of research on this topic lately, as I run a CDP directly to my amp. Here are the two key points I've gotten from the preamp advocate camp:

1. a preamp greatly increases the soundstage depth (though the advocates disagree as to why); and

2. the volume control components in CD players are much lower quality than the other parts in order to keep cost down.

The experience I have in this area is of such a nature that I'm not comfortable commenting either way, but the report of what I hear from manufacturers, dealers, and other users are what I've reported here.