Blu ray upgrade?


Consider me confused. All the new formats make my head spin. Haven't been keeping up so have questions.

Current receiver (Denon 2802) does not decode new formats but does have 5.1 analog inputs. If I buy a BR player (Oppo 93) with 7.1 analog output will I hear a significant difference with Blu Ray movies/concerts in sound quality from my current 5.1DD? What differences should I expect.
Thanks
Steve
scoly1
My Oppo 95 manual (it has 7.1 analog outputs too) says if you have a 5.1 receiver do not connect the SBL or SBR which stands for surround back left and right.

I'm not familiar with multichannel sound quality but the Oppo 93 is supposed to be really good for its price so you should hear some improvement. Crutchfield was offering a 60 day trial period last time I checked so you can judge for yourself.

What kind of player are you using now? Maybe someone can give you a more definitive answer.
I have tested dolby digital 5.1 vs DTS Master Audio 5.1 on my Denon gear, just to see what the difference was between standard and high definition video. Note that all audio was transmitted via HDMI cable, so this is not a test using the analog outputs on my Denon BluRay player, but I did notice some things: high-definition sound is more detailed, with more realistic "edge" to the high and low extremes. I also heard additional ambient detail with DTS master audio, and the soundtrack seemed more realistic...it had more depth to it.
The amount of difference you would hear depends in a huge way on the soundtrack itself, who mixed it, what kind of gear the foley and musical backgrounds were originally recorded on, etc. For example, "Tree of Life" on Blu Ray vs. DVD would present a COLOSSAL difference, but other soundtracks might not.
"IMO HD audio is a huge upgrade even on cheaper systems."

I totally agree. Lossless formats DTS-MA and Dolby TrueHD are far superior to their lossy counterparts DTS and Dolby Digital, even with 5.1 analog. More detail, more "hidden" information in the sountacks are revealed, and just an overrall fullness than with the older codecs.

Bill
Thanks to all!
Seems the upgrade will benefit both video and audio.
Will start watching for a deal on the oppo.
Steve