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
There are some very valid points made in this thread both
pro and con for multi channel HT sound. As someone who has
owned a video editing and media duplication firm for the past 12+ years - I'm frankly amazed at the constantly
shifting standards for HT. Dolby Pro Logic, Dolby Digital,
DTS, THX, and on and on. Try and find a decent supply of
software in any of these "formats" that can be played back
with any sort of decent fidelity.
Quite frankly, I regard most of the lower cost HT hard-
ware as a way for the Sonys, Panasonics, and Kenwoods of
the world to separate the gullible from their money. Anybody
want to buy a Dolby Pro Logic Pre-Amp?
Just giving my two cents worth..... it's hard to enjoy your music when a big tv is in front of you even if it's not turned on. Not only is the tv an eye sore, but it takes up the space that the speaker needs to "work" in.
My current 2 channel set up does not compromise stereo imaging. I have a near field rig with a 27" Sony WEGA on which I attach a RPG Pro Foam panel when listening to music. It really works.

Avideo's got a point regarding all those formats...crazy, to say the least. Did someone mention 10.2?
I didn't read all the replys, so I'm not sure if anyone answered the original question...In my research I have found the new Anthem AVM20, Tag McLaren AVR32 or the Proceed Pre/Pro would merge the best of both worlds.

Good Luck.

m-
It all depends upon the room and your listening position. In just about any shaped room you can adjust your system for an optimum spot. A properly configured 2ch system can create a lifelike 3d image but only in an area between the front two speakers. This is great, if the rooms sweet spot can accomidate the audience. When it comes to watching a movie with the fam, your talking a big room, with probably more then one couch. This is why muti-channel setups are so popular with movies. It sucks to be the guy sitting next to the big left speaker in a 2ch setup b/c all they are going to hear is that one channel. A center channel allows the sound to be pinned to the center, no matter how far to the side you sit. You probably have noticed this at the movies. The screen is pourous and there are huge speakers behind it. The side and surround speakers are mostly there for effect and don't carry nearly as much information. Another advantage of a muti channel setup is that you can adjust speaker placement/delay/volume to account for an odd shaped room, making it much less 'sweet spotty'. My listening room is L shaped and i like the envelopement of a 5ch setup even when listening to a 2ch source (i use a 5ch stereo effect). However, the added effect is much less noticeble in the sweetspot of my room. My advice, if you are an audio junkie and tend to listen to music alone or if you have a nice rectagular or squareish room, save your cash and get a 2ch rig. However, for a movie buff with an odd room, the added cost and hastle of have multiple speakers outweighs the benefits of a 2ch system, even if the quality of components is better in the 2ch rig. As for multichannel audio, i'm not sold on their use surround effects. Many of the recordings seem gimmickie and if they do sound better its pobabably b/c they use high quality samples. The recording industry still can't decide on a single format, and i don't see it catching on antime soon.