I have a Denon 3805 (no HDMI) running 5.1 and am in the market for a Blue Ray player. I am aware one of the upgrades the Sony BDP S550 has over the S350 is DTS high resolution surround sound. So, my questions are:
Is it worth the extra $100?
Only you can answer that. I might* say no, but I would STILL get it, because that's me, and I want it! However, seeing that you own 3xxx Denon, I will assume you're into the finer things in life.
Would the picture quality be the same as the S350?
To the best of my knowledge, absolutely identical.
Am I going to hear a difference between the two units with the Denon 3805, assuming they have optical out?
No, at least if using optical from both sources. Then identical.
What really are the differences in the audio and can anyone say they have heard a difference?
I can upgrade my 3805 later next year, so again is it worth the extra cost?
I never have tried DBT. I've tried my own stupid tests, and I couldn't tell with a couple of movies.
*Special Note #1: even with SPDIF are your bitrates considerably improved. DD is 448 kbs on DVD, now 640(?) on BD. DTS is 768 kbs on DVD, and is effectively doubled with BD via SPDIF.
*Special Note #2: when using m-ch analogs, be very aware of any possible LFE cut. Research, use SPL meter, and see if your receiver can boost LFE if necessary (Im assuming it can).
You wont get high res audio through optical outs. You will need to hook up the analog outs on whichever player you get, since your receiver doesn't have HDMI. Don't even bother with the optical or digi coax. I would def get the S550 over the S350. You should be able to find a few threads here about both of those units.
1.5 mps with DTS core might not be lossless... but is decently hi-res IMO. Do I demand the lossless variety? Yes. But I also just throw money at the problem.