I have a Denon 1713 (80 watts / channel @ 8 ohms, 120 watts / channel @ 6 ohms, and Maximum power output per channel of 175 watts - as per the website)
I'm currently using it to drive a pair of RTI A3's. It's doing a good job thus far (volume setting ranges between 0 and 98 I never need to raise it more than 40 to fill the room with sound)
I'm planning on adding a few more speakers to the set up, i.e. a CSI A6 and a pair of RTI A7's or perhaps (budget allowing) A9's.
Given the power output per channel above I'm guessing the A9's will be grossly underpowered. With that in mind does it make sense to buy a 2 channel amplifier that's rated at say 150 - 200 watts / channel and bi amp the RTI A9's? Or for the time being is it better (temporary solution) to simply not drive the speakers too hard with the Denon and save and buy a receiver that offers 150 to 200 watts / channel output?
Also a quick set up question:
My current set up for inputs and outputs looks like this:
Laptop / PS3 etc --> Denon AVR 1713 --> Polk RTi A3s & TV
Could the following work?
A/V Sources --> Dedicated Receiver --> 5.1 Amp --> Speakers and TV