I just replaced a Pioneer DV45A player with the Denon DVD2900. With regard to audio quality, the 45A and the 47A share the same electronics, and probably sound about the same. (The 47AI has better video, and some other bells and whistles, for about twice the price).
With the Denon I recognize improvement with SACD playback, but little or no change for other discs. The Dennon is a lot bigger, and is less convenient to use in some regards, but does have a couple of "bells and whistles" features that are nice. In terms of value, bang for the buck, the Pioneer 45A wins hands down. I am fortunate to have a few extra bucks to squander.
With the Denon I recognize improvement with SACD playback, but little or no change for other discs. The Dennon is a lot bigger, and is less convenient to use in some regards, but does have a couple of "bells and whistles" features that are nice. In terms of value, bang for the buck, the Pioneer 45A wins hands down. I am fortunate to have a few extra bucks to squander.