It may not matter for your listening pleasure, but that Pioneer player downconverts DSD to PCM on playback. It probably still sounds pretty good but it isn't the true SACD experience.

A note on the above comment: One of the facets of DSD over PCM that I like is that with DSD, I can listen to the whole album without getting what I like to call, "the digital headache." Basically, long term digital listening gives me this nice dull headache. I usually contribute it to the fact my brain has to do some work to complete the waveform from all those little samples. With analog, oh yeah!, and DSD, I don't seem to be affected by this side effect. This is the reason that I don't like the concept of downconverting DSD to PCM. Oh well, just my .02 cents...

I would bet the Sony sounds a lot better with SACD than that Pioneer. Also, I would bet that your Denon sounds better with DVD-Audio. IMHO, if you already have DVD-Audio, I would go for the dedicated SACD player.

Why two formats? Competition