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
I dont know, but to each his own I guess.

In my opinion 2 channel movies might as well be mono, compared to multi-channel for movies, that would be my take on this topic

2 channel movie= Mono
multi-channel HT= stereo
To me it is that big of a diffrence
I wond if a few decades ago people did this with AM-VS-FM?
I'll tell ya why MOST PEOPLES 2 channel system might be better. For one, they're more likely to get lucky getting 2 speakers setup well than 6 or more!!! You couple that with the "ill-placed/setup" subwoofer situation, mating with the other speakers(amoung the other acoustical challenges), and you've got a "hodgepodge" of compromises going on! Really, most people can't get 2 speakers setup for great sound, let alone multiples.
Also, most multichannel recordings are probably thouroughly mixed together, as opposed to pure 2/3 channel mic recordings. Then you add the need for more processing/decoders, and so on, and you get the idea...
I agree with Chad,2 ch for music,multi ch for movies,also a matter of economics for me, if i tryed to equal the quality components in multi ch as i have in my 2 ch,i would have to work 80 hrs a week,give up food,gas,software,cable Tv,,,,,,,,,,
If some one wants multi channel for home theater thats one thing, its not that hard to get a jaw dropping movie experience, but as far as HDCD and critical multi channel music listening everything is important.
That being said most are best off using 2 channel for music and getting center and backs plus sub for movies
just because it's harder (and more expensive) to get multichannel set-up properly does NOT make 2-channel better!

go listen to peter gabriel's up, roxy music's avalon, bryan ferry's boys and girls, and pink floyd's dark side of the moon on a properly set-up multichannel system and then listen to it again in 2-channel and tell me if you can honestly prefer the two-channel.

it seems that people once heard one thing in m/c that they didn't like or heard it on an improperly set up multichannel system and are using at a basis to forever bash it, regardless of whatever strides it makes.

this is the same as preferring mono over stereo because you heard stereo once with a system that had the speakers on uneven plains, bad cd-player, dirty ac, etc.