Originally Posted by BNestico
Would there be any benefit at all to using an Atmos compatible receiver with out the extra channels? For instance, a lot if people are obviously going to have to upgrade their AVR's and buy speakers but most people won't have the money to do it all at once. So they'll likely spend some time with the AVR but no speakers. Also a lot of the new Atmos AVR's don't even have enough speaker jacks and/or preouts for the required number of channels.
Yamaha has one AV receiver with eleven (11) channels of amplification. With Dolby Atmos we can do 7.1.4
Several AV receivers have nine (9) channels of amplification. With Dolby Atmos we can do 5.1.4
...Without additional amps.
* If buying a new Dolby Atmos AV receiver with an already 5.1-channel system setup (assumption),
then yes you can still use the new receiver. ...And later on add the four small Dolby Atmos up-firing speakers, or four on or in-ceiling speakers (coaxial ones for example). ...Small, don't have to be big as their X-over is cutting off @ 180Hz anyway and the bass is redirected to your front mains, and then to your sub(s) for the remaining portion that you set up your receiver's speakers' crossover @.
And then, just buy another stereo amp, or two, when you go nine (5.1.4) or eleven channels (7.1.4) with a Dolby Atmos AV receiver having only seven channels of amplification inside (5.1.2).