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  • Polk Audio RTI A9 Floorstanding Speaker (Single, Black)
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Polk Audio RTI A9 Floorstanding Speaker (Single, Black)

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Price: $749.95 & FREE Shipping. Details
Only 12 left in stock (more on the way).
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  • Single real wood floorstanding speaker with all MDF construction and resonance-free enclosures
  • Equipped with dual 5.25-inch polymer composite cone drivers and three 7-inch polymer composite subwoofers
  • Features Power Port technology to reduce "chuffing" or "port noise"
  • Equipped with one 1-inch silk/polymer composite dome tweeter
  • Features a neodynium magnet, low viscosity ferro-fluid cooling, and a heat sink on the back of the magnet
8 new from $625.00 4 used from $589.99
This item’s packaging will be visible when delivered and cannot be gift-wrapped.
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This item is an individual speaker. If you want a pair of speakers, you must add two of this item to your Shopping Cart. Why are some speakers sold individually?

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$749.95 & FREE Shipping. Details Only 12 left in stock (more on the way). Ships from and sold by Amazon.com.

Frequently Bought Together

Polk Audio RTI A9 Floorstanding Speaker (Single, Black) + Polk Audio CSI A6 Center Channel Speaker (Single, Black) + Polk Audio PSW505 12-Inch Powered Subwoofer (Single, Black)
Price for all three: $1,325.20

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Color: Black
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Product Specifications

Color: Black
Brand NamePolk Audio
Color NameBlack
Item Display Height48.5 inches
Depth21.5 inches
Driver Configuration3x 7" Woofer, 2x 6.5" Midrange, 1x 1" Tweeter
Frequency Response Curve18 Hz - 27 kHz
Speaker Driver Material TypePolypropylene
Maximum Speaker Depth (inches)21.5 inches

Product Details

Color: Black
  • Product Dimensions: 21 x 50.2 x 7.8 inches
  • Shipping Weight: 87.8 pounds (View shipping rates and policies)
  • Shipping: Currently, item can be shipped only within the U.S.
  • ASIN: B000V2SEX2
  • Item model number: AM9975-C|4
  • Average Customer Review: 4.7 out of 5 stars  See all reviews (50 customer reviews)
  • Amazon Best Sellers Rank: #27,898 in Electronics (See Top 100 in Electronics)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.
  • Date first available at Amazon.com: September 1, 2007

Product Description

Color: Black

Polk Audio RTI A9 Black Floor-Standing Speaker - The new RTI A series feature several upgrades. From the incorporation of our latest Dynamic Balance Cone drivers and 1 inch tweeters to an elegant restyling of the cabinets in keeping with the latest styles. The floor-standing models feature "Power Port Plus" an enhancement of Polk's patented Power Port technology. As you would expect from this highly popular line, the performance is classic Polk.

Customer Questions & Answers

Customer Reviews

It needs a lot of power to drive it to the fullest.
Michel Behna
It's clear mids and highs, sharp punchy bass and low frequency extension are, in essence, what every manufacturer desires in a speaker.
Cyndi Lou from Kalamazoo
I would recommend them to anyone looking to add a pair of great sounding speakers without braking the bank.
M. Christopher Blue

Most Helpful Customer Reviews

44 of 51 people found the following review helpful By J. Balamurugan on January 9, 2010
Color Name: Black
The first thing I noticed in these speakers were their ability to produce midrange sounds effortlessly. This may be due to the driver configuration, but it works. But I'm not going to say the mid range just floats in the air like the high end speakers but does the job well. They need decent amount of power to sound at their best. I have a Denon 3805 (120x7) and feel its bit underpowered for these speakers as I have to push the volume way up for powerful sound to be produced, yet they sound great. In the shop they had these connected to a Denon Stereo amp (200x2) which drove these pretty well.

I used paradigm M9 as mains before (for 5 years) I got the polk and the paradigm were much easier to drive and their bass was more pronounced but clarity wise, polk wins hands down. Also I think the bass has better definition with Polk than the paradigm speakers which sounds bloated in comparison.

These speakers need good source material(CD/DVD/Blu-ray) to show its true potential as they reveal 'not so great' recordings pretty quickly. I have several reference audiophile recordings which sounds really great with these as those recordings prevail mostly in midrange clarity.

Speaking of the midrange quality, try playing the echo game scene from 'House of flying daggers' at a high volume. You will be amazed with the quality of the sound coming from these speakers. Powerful and a sharp punch of the drum and a soothing midrange percussion that's reproduced effortlessly with good authority and clarity.

Despite the size of these speakers and the number of drivers, you will still need a decent sub to complement it for movies. My room is pretty big (19x18) with high ceilings, that could be a factor as well.
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17 of 18 people found the following review helpful By Jerkis on November 29, 2012
Color Name: Cherry
First, as background: I have an HK 3390 receiver (80WPC) and a NAD C-545BEE CD player, and I had been running a pair of Mirage OS3-Sat bookshelf speakers coupled with a 10" Mirage sub. The Mirages are excellent bookshelf speakers, but naturally, since they only have a 1" tweeter and a 4.5" midrange driver, there was a tremendous gap from the lower mids down to the extremely low frequencies the sub handles. I dealt with it for some time but I got to the point where all sorts of stuff I knew was in my recordings was just not being faithfully reproduced.

Ultimately I decided I needed to upgrade, and luckily there is a brick-and-mortar shop about an hour away that specializes primarily in Klipsch and Polk. I tested the Klipsch RF-7s, Klipsch RF-42s, Polk TSi 500s, and the RTiA9s. I had heard criticisms of the Klipsch's horn-loaded tweeters, and I noticed why right away. Both the RF-7s and the RF-42s try to reproduce a lot of the midrange through the tweeter, and the upper mids and highs were noticeable muddy and convoluted; although the RF-7s were much more open (as they should be, at $1,500 apiece), the clarity was not what I would have expected. The RF-42s were to me almost unlistenable, very boxy, poor dispersal, with a flat soundstage. I suppose it's to be expected from what is basically an entry-level speaker, but it was very noticeable.

The RTiA9s, however, blew me away from the first notes I played through them. I find them superior even to the RF-7s, which are more than twice the price. The clarity and definition is phenomenal, and even right out of the box they do not sound overly bright to me, as some people have said. There are no real gaps in frequencies, and those essential mid-ranges are solid, from the high-mids to the lows.
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9 of 9 people found the following review helpful By BCook on April 20, 2014
Color Name: Black Verified Purchase
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 prefer to watch Blu-ray at home.

If you have had a bad experience with the RTIs, I wonder what is set up incorrectly. Let me know if you want to get rid of your RTIs.
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6 of 6 people found the following review helpful By Cyndi Lou from Kalamazoo on November 22, 2013
Color Name: Cherry
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. It's clear mids and highs, sharp punchy bass and low frequency extension are, in essence, what every manufacturer desires in a speaker.
I've read all the remarks on "weak bass" and "needs huge power" in other reviews. That's 100% true. And, I'd like to clarify exactly what's going on here. First, using my Yamaha 120 WPC receiver, I noticed that the 3 woofers simply did not move much, no matter what source material was used. Using a test disc, I measured my in room frequency response in my 18x26 foot open plan room. [Note: my room is a massive bass sponge, and needs large drivers and equalization to achieve audible low frequencies. ] At my listening position, the RTi-A9 bass roll off starts at about 70HZ and at 30HZ is a stunning 18+db down. So, I adjusted my digital graphic equalizer to compensate. Guess what? The woofers now move a bit, and the bass punch is solid, firm and accurate. The bass now warmly fills my entire house! However, my little (very expensive) Yamaha receiver is not quite up to the real world power demands of these speakers. The ADCOM amp is much better and provides more bass still. My suggestion is to have at least 300W of clean power to drive these. With enough power, these speakers really deliver the punch, and I am seeing 110db of very clean sound. My room is difficult to fill powerfully, and the RTi-A9's can do it effortlessly, with enough power.
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Polk Audio RTI A9 Floorstanding Speaker (Single, Black)
This item: Polk Audio RTI A9 Floorstanding Speaker (Single, Black)
Price: $749.95
Ships from and sold by Amazon.com