i've been reading alot of people here saying that the receiver that comes with the 770 has a problem that requires them to switch the receiver from V1 to V3 to V1 to hear anything after they power it up. i don't know about you, but i would consider that annoying if it happened to me.
also, best buy sells the yamaha 450, you should be able to listen to it there if you want to listen to it for yourself.
i have the 760, last years 770, and if i had to do it all over again i would personally get the yamaha. the speakers that come with the 770 leave something to be desired, and while you can say you can always upgrade them later, why purchase something with the intent to upgrade later? get the one that sounds better now, it's up to you to decide which one that is...
also, best buy sells the yamaha 450, you should be able to listen to it there if you want to listen to it for yourself.
i have the 760, last years 770, and if i had to do it all over again i would personally get the yamaha. the speakers that come with the 770 leave something to be desired, and while you can say you can always upgrade them later, why purchase something with the intent to upgrade later? get the one that sounds better now, it's up to you to decide which one that is...