Why is 2 Channel better than multi-channel?


I hear that the music fidelity of a multi-channel AV Receiver/Integrated amp can never match the sounds produced by a 2 channel system. Can someone clearly explain why this is so?

I'm planning to upgrade my HT system to try and achieve the best of both worlds, I currently have a 3 channel amp driving my SL, SR, C and a 2 channel amp driving my L and R.
I have a Denon 3801 acting as my pre. Is there any Pre/Proc out there that can merge both worlds with out breaking my bank? Looking for recommendations on what my next logical steps should be? Thanks in advance.
springowl
ProShark Mobile Application Development
Just in case you missed some of the pertinent facts regarding application development for mobile platforms, here are a few that may catch your attention.
• 72% of adult Cellphone users text messages
• 65% of adult Cellphone users sleep with their phones
• 50% of US Cellphones will be smart phones by Christmas 2011
• 1 out of 3 Yelp searches is from mobile
• Apple Will Sell $2B in Apps in 2011
• Approximately 40% of social media users access their accounts through mobile devices.
• One billion mobile applications were downloaded in the week between Christmas Day and New Years Day - Flurry Analytics
• The total global mobile applications market is expected to be worth $25 billion by 2015 (up from about $6.8 billion in 2010) – Marketsand Markets
Go to::>> http://proshark.com/
Multi-channel can be a gimmick to some but when I first used it I was impressed that it provided a very involving listening experience with movies. Fast forward a few years, my interest in it has diminished and I couldn't be bothered sometimes to play a movie using surround sound. Maybe because my first love and priority is two-channel. More recently I am gaining a little more interest in surround sound again and would like to revisit to see what I remember was so exciting.
It is the way we hear. Two channel make one sound with three dimension. I looked into SACD two channel was best; when more came out as multichannel, and I have found the best in NOT movie set-up, but two further out and wider ambient speakers.

You do not have part of orchestra playing in balcony, no. It is not like a movie where the car come from behind you.\

I very much like SACD, but stereo SACD is best.
What you have now is pretty good. I have near the same in my bedroom; Denon 4802 with three channel power amp. front and surround from the Denon, and centre and two back on amp, which are 4 ohms, and amp does well with load.

Run the 7.1 analogue exit in and you have the new format.

Once you go for a higher-end, the cost goes up by a large margin.