Instruction: Generate an answer to the question by utilizing the information contained in the document.

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Question: What is the power handling of the RTi A9s?
Document: My room is difficult to fill powerfully, and the RTi-A9's can do it effortlessly, with enough power.
(Althought the Aperion speakers are much better looking)The RTi A9 is a minor tweak of the earlier RTi12 speakers. The cabinets have had curves added. But, more importantly, the sound has been tweaked a little to remove some the brightness that some complained about on the RTi12.You do need power to run these speakers, but you don't have to go over board. I am using a 140 watt per channel Pioneer Elite and have these speakers in a large room. It is sufficient.
I came from several different high(er)-end gears including Martin Logan, vintage JBLs and Klipschs, so I kinda know what to expect for a good, clean and balanced sound. I believe that with further burn-in the A9s will sound even better over time.In short, if you can get a pair for a good price (say, under $1k), don't hesitate and get them!
I've yet to add the sub and surrounds and have been very pleased with just the three speaker setup. Every guest who has watched a film or listened to music has been impressed. I will flush it out to a 7.1 system in the near future but simply to gain the full surround. The A9s provide an incredible sound experience on their own.I have the cherry speakers. They are pretty -- very pretty in fact, but quite heavy. You want to be careful moving them.
I can't say if they "shake the house" as I've never pushed them to that level. The quality of the sound is obvious at low levels and that's where I like to keep my music and films. They will get loud if you push them but that's not my particular style.I've seen where some folks question if you need a sub-woofer with these speakers. I'd suggest that for most people you don't. The A9s handle low rumbles and booms just fine. Orchestra music sounds complete.
But of course, I haven't paid for some more expensive Polk speakers.After more than two years, I continue to marvel about how beautiful the sound is from the RTI A9s I have. I'm bi-amplifying them with a 100 watt Sony ES receiver. This is nothing elaborate or terribly expensive. And what comes out is the greatest sound I have heard from anybody's speakers, anywhere.You would think the sound in an IMAX theatre would put everything else to shame. But not my A9s.
I'm definitely not an audiophile, but I know what I love, and I love these speakers. I purchased a pair of A9s because I've enjoyed Polk in the past and they were on sale for a great price. Using my existing Harman Kardon 3490 2 channel receiver and placing the speakers in the same position as my old Energy RC-70s (6 feet across, 9 from my chair), I thought the speakers sounded a little muffled and bit sharp and fatiguing on the high end.
To the greatest degree that is the case, however, driver material and cabinet shape can "influence" timbre. If cabinet symmetry is not consistant as well as driver material the difference is noticable. The Bose 701's work as well as they do because they are primarily reflective. I am considering running a set of RTi-A7's as rears if the price drops enough.
Prior to purchase, I read every online review I could find. Most reviews were extremely positive. Based on that, we purchased a set. Even though my audition of them in an electronics store was awful, as they clearly did not have them set up correctly, or in phase. These replace a set of wonderful sounding, but small, award winning DIY designs that I had. The RTi-A9 does not disappoint.
Purchased the Polk RTi A9 speakers for my main living space which has high vaulted ceilings and an open floor plan opening up the space to the entire main floor. I was having problems filling the space with high quality competitor's speakers. Problem solved. Wow, amazing sound clarity and completely fills the space. Paired with the matching polk sub. As usual, a good sub takes the overall sound to a new level.Speakers are a little bright.
Answer: Polk Audio claims 500 Watt power capacity for these speakers. From a personal perspective I have a Polk Audio 9.2 system including the RTi A9s powered by an Onkyo TX-NR5008 9.2-Channel Network Home Theater Receiver in a fairly large theater room. I push these speakers hard, very hard, especially from our Oppo blu-ray player. The Onkyo's output is 145 Watts per channel. The RTi A9s are a solid performer and have been able to handle anything I've been able to throw at them exceptionally well.