I love my Rti8's and Csi3. Blend wonderfully with my CHT-10 !!Well figured I'd come and join the Polk Owner Thread...Since I picked up mine when they were on clearance/sale and I'm a happy camper.
Front: Rti 8
Center: Csi 3
Surrounds: Fxi A4
Sub: eD A3-300
Reciever: Onk 705
To me this setup sounds and works amazing for games and movies..It was an amazing investmet
I agree that most large Polk speakers sound better with more power. I've been using an Outlaw 770 amp (the forerunner of the 7700 currently available) and have been very pleased with the combination.For now the marantz should hold its own for the speakers, its 1/2 of the recommended power for the A9's, but still enough to sound good.
However you should look into more power at some point. To make all 6 drivers really sing, more power would benefit it. I know when I had it just single amp powered with the bridges on the plugs, it sounded fine. But after I Bi-Amped it, they sounded better than before.