Center Channel
CSiA6
High performance center channel speaker.
24" W x 7 3/4" H x 14" D
60.96cm W x 19.68cm H x 35.56cm D
The Voice of a Flagship System
The center channel speaker is arguably the most important speaker in your home theater system. It’s in the middle of all the action and, more importantly, it’s the anchor for all dialog. If you want to hear what the actors and actresses are saying, buy a good center channel speaker. The CSiA6 is the perfect center piece for a big screen TV or a large room. And it’s timbre-matched to the RTiA series speaker so you can build a seamless 360° experience. Its massive dual 6 1/2-inch Dynamic Balance® midbass drivers and 1-inch Dynamic Balance dome tweeter will dish out explosive sound and crisp clear dialog. It’s best paired with the larger tower or bookshelf speakers.
Borrowing advanced features such as Cascade Tapered Crossover network from the LSi series, dialog and speech come through crisp and clear while still having the authority for high impact special effects.
The CSiA6 Features:
The unique angled top allows the CSiA6 to be inverted so you can place the speaker below your TV and still enjoy great sound.
A unique kickstand assembly that provides rear support to many projection TVs (will not work with plasmas or other TVs with completely flat rears).
The proprietary curved, 6-layer DAHLI enclosure design creates the optimal shear damping for a more rigid, acoustically inert enclosure and minimal cabinet resonances. CSiA6 cabinets are designed for clean, accurate sound.
Klippel motor optimization uses laser measurement technology to ensure a smooth excursion path at either end of the volume spectrum for uniform performance at both low and high volumes.
Polk’s proprietary, patented Dynamic Balance technology allows our engineers to design out distortion-causing driver and system resonances, so you only hear the good sounds.
Durable, computer-modeled, injection-molded butyl rubber surrounds suppress unwanted cone resonances for a lifetime of reliable sound.
The RTiA Cascade Tapered Crossover eliminates the comb filtering and beaming, common to multi-driver speakers, which degrades the quality of the audio and collapses the soundstage.
PowerPort® bass venting is our patented design for smoothly transitioning the air flow from the port into your listening area, eliminating turbulence and distortion, for bigger, more musical, deep bass impact. The CSiA6 features dual PowerPorts for added center channel realism.
Patented Acoustic Resonance Control® (ARC) technology suppresses cabinet resonance that causes distortion to ensure clear and natural sound.
Beautiful curved furniture-grade hardwood veneer cabinet finishes, with sleek trim accents in black or cherry.
Computer-modeled anti-diffraction grilles enhance the good looks while minimizing sonic interference.
All Polk loudspeakers are timbre-matched within their series, designed with the same components throughout, to achieve seamless speaker-to-speaker blending effects in multi-channel systems.
Dual gold-plated, professional-style 5-way binding posts, for the most secure connection options.
Dual binding posts allow bi-amp or bi-wire connections, for the ultimate in customized high performance audio.
All Polk products are made using the best materials and the most advanced manufacturing techniques. They pass the industry’s most exhaustive quality tests, including drop testing, extreme signal response and UV & salt exposure testing. Polk loudspeakers are built to perform for a lifetime.
Driver Complement | |
|---|---|
| Tweeter | |
| Quantity | 1 |
| Diameter | 1" (2.54cm) |
| Type | Dynamic Balance silk polymer dome tweeters |
| Mid / Woofer | |
| Quantity | 2 |
| Diameter | 6 1/2" (16.51cm) |
| Type | Dynamic Balance drivers polymer composite and rubber surrounds |
Electrical | |
|---|---|
| Total Frequency Response | 45Hz-27kHz |
| Upper -3dB Limit | 26 kHz |
| Lower -3dB Limit | 55 Hz |
| Nominal Impedance | 8 ohms |
| Efficiency | 90 dB |
| Recommended Amplifier Power | 20-200 watts per channel |
| Inputs | Dual 5-way binding posts |
Dimensions | |
|---|---|
| Cabinet Dimensions | |
| Height | 7 3/4" (19.68cm) |
| Width | 24" (60.96cm) |
| Depth | 14" (35.56cm) |
| Enclosure Type | |
| Mid-High Array Enclosure Type | Dual PowerPort bass venting and ARC port |
| Product Weight (each) | 29 pounds |
Shipping | |
|---|---|
| Unit of Measure | Each |
| Total Shipping Weight | 30 pounds |
| Included Accessories | Rear kickstand |
Warranty | |
|---|---|
| Speaker Warranty | 5 years parts and labor (original purchaser) |
Specifications, dimensions and features subject to change without notice. For more information call us at 1-800-377-7655 (USA and Canada). Outside of North America call +1 (410) 358-3600.
Customer Reviews
25 reviews with an average of 5
Write your own reviewby Desmond, November 1, 2009
19 out of 21 people found this review helpful.Strengths:
Very nice speaker, full sound, looks good.
Weaknesses:
Overpowers a smaller listening space.
Review:
I bought this along with a pair of RTiA7's. Seemed like the way to go. Unfortunately I found it too forward and it overpowered my system, even the A7's I had to turn it way down to hear my fronts and rears properly. This could be because I am sitting too close to it and my towers are only 10 feet apart. I would recommend this center if you have a large room and are sitting farther back. If not, then go with the CSiA4. So as a review, take this with a grain of salt. It is an amazing speaker. For my situation it did not fit. So make sure you buy from a store that will let you return it if you have a smaller room and find it too overpowering.
by Pat G., January 2, 2009
11 out of 12 people found this review helpful.Strengths:
Clarity for H/T and Music, Perfect highs and lows.
Weaknesses:
Weakness????? lol
Review:
AMAZING!!! I just picked up this Center and after getting it hooked up, i had to write a review. Incredible clarity and detail for dialogue and vocals just blew me away! Perfect highs and lows. All my speakers came to life! You dont know what your missing in HomeTheater until you buy this unit. Beautiful new design too.
by Howard Hull, November 12, 2009
8 out of 9 people found this review helpful.Strengths:
High, mids, Lows even perform well. looks fantastic.
Weaknesses:
haha... don't be silly
Review:
I've purchased these speakers along side the matching Fronts and surrounds. I'm running them from a Onkyo Nr1007 THXultra Receiver and have run oehlbach silver speaker cable to them, wishing i could biamp them but never mind. I previously had a PARADIGM CC 350 which i loved untill i hooked this bad boy up. The depth in the voice including highs and lows is out of this world, matching it's family member to perfect harmony. I'm even still waiting for it to break in as it seems to get better everyt ime i hear it. I've made my own dedicated bracket so it seems like it's floating off the floor. The build quality gone in2 this product is one of the best i've seen.
by RD, November 6, 2008
7 out of 9 people found this review helpful.Strengths:
Perfect size for home theater center channel.The low,mids and highs blend together perfectly
Weaknesses:
None
Review:
This is the best center channel speaker you can get,it is very well built and the new design is absolutely beautiful.This center channel has the build,quality and sound that easely can be compared to others costing in the 1,000 to 1,500 price range
by T Petrek, January 5, 2010
7 out of 65 people found this review helpful.Strengths:
The cheap price I got it for.
Weaknesses:
To many to list.
Review:
Ah. Polk. I'll give you an A for effort. But this center falls short is so many ways. First off it has very good low end when set to Large. The highs are good as well. BUT, the midrange is almost non discript. The sound effects that are supposed to be there are so faint it's like you can almost here them. Plus you used the cheapest transistors possible. I guess you had to cut cost for the very nice cabinet. Since the center carries 80% midrange dialouge, this one just is quite not there. Keep trying Polk and you may one day become a great speaker maker. Good Luck. But you have a long way to go. Not all the masses are Non Audiophiles.
by William G., February 26, 2009
6 out of 8 people found this review helpful.Strengths:
Clear clean sound. Rich bass, great Mid range and sharp clear Hi's.
Weaknesses:
Nothing that I can see. Some complain about the size, you need room because it's a lot deeper than the A6. Extra size is well worth the improvement.
Review:
Incredable speaker. I upgraded for the CSiA4 to the CSiA6 and I couldn't be happier with the investment. Having run the 4 for a year or so, it's a great speaker, but when I upgraded my fronts for RTIa1's to some RTi6's, I felt that the increased bass response from the 6's left the center a little lacking and it felt like I was missing something. After installing the CSiA6 it was a big difference. The A6 has a richer, fuller sound with great bass and incredable clarity. If there's anyone wondering if it's worth it to move up to the A6 from the A4, don't hesitate, you won't regret it.
by Michael Vera, December 29, 2007
3 out of 4 people found this review helpful.Strengths:
Hits pretty low for a center Nice natural highs Great mids Solid, and attractive construction
Weaknesses:
If i had to find one, size, but the design makes up for it.
Review:
I upgraded from a CSi3 to this, to match my RTi8s. Very pleased, the sound field blends better with matching drivers. This is a very musical speaker, that also excels at HT. The cascaded cross overs, dual 6 1/2 inch woofers, Powerport, etc all produce a nice full range sound. The new design is far superior aesthetically over the previous CSi Line, the grille looks phenominal. Over all I am very pleased with this speaker. I have heard Legacys, Sotas, B&Ws, etc and for the price this is by far the best value. Polk you have done it again, Thanks for creating a solid product!
by Ben, October 22, 2008
3 out of 8 people found this review helpful.Strengths:
Amazing clarity in highs and mids, and puts out very impressive lows for a center. Very attractive looking unit.
Weaknesses:
Size isn't a weakness in my opinion, but this is a very large unit. Just remember that size matters if you dislike distortion and desire amazing clarity.
Review:
Polk continues to impress with high quality speakers at very reasonable prices. This unit puts out amazing highs and mids, and impressive lows for a center. It's a very nice looking unit, the cherry center both looks and sounds amazing. Perfect compliment to my Rti-12s, PSW1000, RM30's (rears). I replaced a CS2 with this, a very good decision (even though the CS2 is nice), the Csi A6 compliments my system perfectly.
by Alexey, December 13, 2008
3 out of 12 people found this review helpful.Strengths:
invariable character of sound through 11 year: high quality processing space effects (big hall, little room, moving objects - mens, cars, train etc. in film action), faster middle bass 80Hz maked indistinguishable acoustic guitar and other acoustic stringed instruments from real live instruments
Weaknesses:
Review:
Its may be say naming conversion way from 2 channel stereo to 5.1 home theater. Long time ago in 1997 I building stereo system CD-Player Yamaha CDX-590, Amplifier Yamaha AX-590, bookshelf speaker PolkAudio RT-7, interconnect cable - selfmaked (twisted pair - every wire of pair{central wire OFC 2 mm2, oraund central 5 silver thin wire; silver and OFC joins in place connectors in every side of cable} ), speaker cable Esoteric Audio "Premier" 8 mm2, stand for speaker - selfmaked marble thickness 30mm in metal cone leg. In 2006 I begin conversion to 5.1. I buy DVD-Player Yamaha S-657, receiver Yamaha V-757 and surround speaker PolkAudio RTi4. 9 year ago after buying RT-7, I think sound PolkAudio is changes... NO! Sound RTi4 ideal pair for old RT-7 - simular frequency response, equal crossover frequency. And new technologys. RTi4 may by place to bookshelf without stand for speaker and sound no changes. Old RT-7 without stand for speaker change sound because resonance kill sound. Next I buying subwoofer PolkAudio PSW 505. And right away hear difference in bass RT-7 and PSW 505. Low Total harmonic distortion PSW 505 make sound clearly than RT7 and dynamic range PSW 505 more than RT7 make hear of sound discomfort. Need change front pair think I, buying PolkAudio RTi10. Deep bass, clear middle and 3D volume sound treble make speaker ideal. Last step to 5.1 buying center speaker. Changes series leaves no changes center speaker. Only CSi A6. True real sound I hear in high quality DVD-audio 96/24/5.1 and multichannel SACD. May be say RT series become audiophile not only theater (where I buy RT7 in 1997 RT series translate to "Reference Theater"). Finally I buy projector Infocus IN78 and screen Luma 92" (was 25" TV). When I see film with big angle from center I dont hear surround sound. Decision - buy special surround speaker and FXi A6 is optimal. What I hear? Ideal sound field, hear from any angle, balanced sound with high quality space effects and great processing acoustic guitar, contrabass etc. acoustic stringed. Processing acoustic guitar and space efects i hear in old RT7, but with 6 speakers its more realistics. I look for testing Mission Impossible 3 (DTS sound), hear Dire Straits "Brothers in arms" (SACD), Audigy 2 Creative DVD-audio sampler disk (DVD-audio). PS. Dont try upgrade old system. This system will be conflict to new technology (RT7 and PSW 505). I buy RTi4 to old RT7 and lost many, later i change RTi4 to FXi A6. Recomendation PolkAudio use with front RTi10 surround FXi5 (or new FXi A6). Sound really better. Planning all speakers now no later. This review may be placed to CSi A6 and FXi A6 Alexey, Russia, Moscow
by Pons, November 13, 2009
3 out of 3 people found this review helpful.Strengths:
great for home theater and multi channel stereo, can handle a lot of power
Weaknesses:
IT'S MASSIVE but it's not an issue in my set up.
Review:
The CSi A6 is an excellent center channel speaker, it matches perfectly to the RTi A9 towers in both appearance and sound. It's a great value and sounds as good if not better than CC's I've listened too at a higher cost. Polk Audio does a great job with speakers.
by JDE, August 28, 2007
2 out of 10 people found this review helpful.Strengths:
sound
Weaknesses:
none
Review:
Great sound
by Adam, September 20, 2009
2 out of 2 people found this review helpful.Strengths:
every thing
Weaknesses:
big for a center. but if you have the room et it now.
Review:
great speaker this is the most important spearker for your ht. do not skimp here. this is a great speaker that will bring the movie alive (or music)
by eHouse Inc, October 29, 2007
1 out of 2 people found this review helpful.Strengths:
Awsome full range sound.
Weaknesses:
none that we have experienced.
Review:
Great Sound, This speaker has all the qualities we look for in a center channel. This speaker has great sound depth. Bottom end is awsome, not to mention it looks great.
by chris, February 22, 2010
1 out of 1 people found this review helpful.Strengths:
high quality sound, better than most high dollar speakers for less!!
Weaknesses:
make sure you have the room to put it. it's pretty large
Review:
I purchased the CSIa6 around christmas 2009. i tell you i have never heard a more pristine sound. Everything from movies to video games are jaw dropping. Of course you have to use the right components or else its pointless to spend the money. i use all monster cable for speaker wire and hdmi cables. I have a pioneer reciever that pushes everything. i have this entire lineup minus the 2 front speaker(saving up to get them). I did tons of research and read hundreds of reviews and i am not lying when i say Polk has the best speaker for the price. What truly amazed me was the fact that they sound great without cranking the volume like others.
by TFarmer, November 16, 2010
1 out of 1 people found this review helpful.Strengths:
It can hang with the big boy fronts, just make sure you have room this thing is alot bigger than the CSi3 I would guess by looks almost twice the size.
Weaknesses:
you find one call me
Review:
My main system consist of RTi12 FXi5 and now this beauty. I upgraded from a CSi3 and man what a difference first the sound as aspected can hang with the 12's like a walk in the park. Voice and stage is perfect where the CSi3 lacked (which wasnt much btw)this speaker provides a more detailed sound with the lows the CSi3 just couldnt hit. After hearing this speaker I may pay full price to pair with my used RTi12s in my game room replacing the other CSi3 I have this is an awesome center and I doubt any of you family or friends will ask you during a movie or sporting event "what did he say"?
by Joe, March 3, 2008
0 out of 1 people found this review helpful.Strengths:
Crystal clear sound. Great highs,very good bass. Solid construction.
Weaknesses:
None that I have noticed. Can't imagine any in the future
Review:
I purchased this speaker after many weeks of research. Which included listening to many models, phone calls to Polk audio and reading Online reviews. I've only had it a week or so but, I couldn't be happier with my decision. The sound is amazing! I also bought a pair of RTI6's for my front channel. They sound wonderful together. I'm looking forward to many nights hiding in the basement and rattling the walls. :) Whether it's music or movies. You won't be sorry you bought this speaker.
by Harry, May 30, 2008
0 out of 1 people found this review helpful.Strengths:
Performance significantly exceeds the price!
Weaknesses:
Size is somewhat an issue however in this case size gives you much more!
Review:
Stunning sound for an exceptional price. Whenever you make a purchase you weigh the options and I was a little bit tentative thinking I might have to to spend more to achieve the kind of performance I was looking for. That is why I was more than thrilled to hear the sound from this box...connect to my Yamaha RX-V663 this baby kicked out fantastic highs and lows...great for both music and video!
by Patrick, May 31, 2008
0 out of 1 people found this review helpful.Strengths:
Great range of sound. Sounds like you are literally in the film.
Weaknesses:
The size, but definatly work the sacrifice!
Review:
This speaker is BIG. It sounds GREAT, I guess bigger is better. lol It looks great with my rti a7 and the sound blends great. It has a nice range of sound. The size is not what i wanted, I wanted something that mounted on the wall, but to me it was worth the sacrifice.
by Wesley Lineberry, January 18, 2010
0 out of 0 people found this review helpful.Strengths:
Clarity that gives you serious headroom. Bi-ampable
Weaknesses:
Can't wall mount it.
Review:
I have owned the CSi A6 for approx. one year now. It blends in so smooth with the RTi A9 towers I have. I now even listen to some soundtracks in 3.1 mode. Some people say it's rather large but, to me when a speaker sounds this good size doesn't matter. I really don't notice its size. You won't regret owning one. Makes music and movies come to life.
by Dave G., February 19, 2010
0 out of 0 people found this review helpful.Strengths:
Just a great looking and very well built speaker that changed my system for the better.
Weaknesses:
None
Review:
Replaced a CS2 with this center to complete my new setup (RTi A7s and FXi A6s). I was surprised how this speaker settled in to be part of the sound musically where the other never seemed to do so. The dialogue sounds pure - as if in person - and it carries effects in near perfect concert with the others speakers. For our room and our budget, this Polk setup meets all our expectations. Highly recommended.
by Paul C., May 25, 2010
0 out of 0 people found this review helpful.Strengths:
Sound depth and dynamic range for a center speaker. As well as voice clarity.
Weaknesses:
Size, make sure you measure this before picking it up, it might look big at the store, wait till you take it home!! But then big size, big sound.
Review:
I finally decided on the CSIA6 to pair with my RTIA5's. I choose the CSIA6 due to the matching driver size for better timbre-matching. I hesitated at first due to the large size of this speaker, however once the lights are off and the movie kicks the large size pays off with huge performance. I set the crossover to 100Hz to allow for a little more low end frequencies to stay at the center.
by Albert, July 25, 2010
0 out of 0 people found this review helpful.Strengths:
- Beautiful finish - Very clear dialogue - Wide frequency range
Weaknesses:
- Poor grill posts (ordered mine from a reseller and 3 of them were broken on arrival)
Review:
I bought this speaker to compliment my RTi A5's and man, I was not disappointed! The sound quality is superb and actually improved drastically after a heavy month of use. Dialogue blends in seamlessly with my A5's and I couldn't be happier! The center channel is the most important speaker in your system, so do not overlook this speaker!
by Steve in STL, January 20, 2011
0 out of 0 people found this review helpful.Strengths:
Excellent sound quality. Best for price range
Weaknesses:
It is big
Review:
This speaker sounds Amazing. I auditioned a lot of speakers before deciding on the polk RTi & CSi lines. Overall they sound excellent and for the price range nothing else really came close to me. I auditioned both the CSi A4 and the CSi A6. The CSi A4 is no slouch by any means, but the CSi A6 is a must if the space is not an issue. It is big, but with it comes big and beautiful sound. I really wanted the C4 and was impressed with it, but the A6 fills out the mid range so much better I had to get it even though space was an issue for me. I liked it enough to rearrange my living room in order to accommodate it. The main reason for this is that the center channel does MOST of the work in the home theater setting, so I figured the fuller sound was a must.
by Nathan b, January 19, 2012
0 out of 0 people found this review helpful.Strengths:
Everything. This center looks great the wood is very soft and shiny no grit feeling. The sound is fantastic and imagery is beyond.
Weaknesses:
No weakenesses just a beautiful addition to my life.
Review:
I bought this 3 days ago after reading numerous reviews about how the center channel is the most important speaker in your home entertainment center I decided to go BIG or go home. I have all sorts of products from Bose but decided after hearing a good friends system to try Polk I bought this with a pair of matching rti a3's. Needless to say this are amazing right out of the box they need to be set as large and 60hz on you receiver. The imagery in this center is fantastic while watching a movie everything pops and is very clear. The tweeter is pristine very clear and not enough to make your head hurt even while putting your ear up to them on a loud setting. Mid bass is complete there's not a frequency missing and for lows well... Depending on your musical preference I have this with the matching bookshelves speakers and don't really need a sub on for watching most movies. The clarity is so well I was cleaning with the tv on their was a loud scene on my be for a commercial for a new action movie I was near my right speaker and jumped. While this is on at any volume it is clear and crisp no rattling or distortion of any frequency. I have a new onkyo receiver 5.1 85 watts a channel these take advantage of that receiver and push to their full potential. It wonderful expecially coming from a Bose lifestyle to this. I'd give it 100 stars if possible thanks for making me a believer Polk.
by Jason, April 19, 2013
0 out of 0 people found this review helpful.Strengths:
Everything about it, looks, sound, and the way it blends
Weaknesses:
Weaknesses??? Lmao if you think there is a weakness then I hate to say the only weakness is the person that thinks this
Review:
I was debating on this center for a long time now to match my RTi12's and I was so so glad I did get this center, they blend beautifully together. In my setup I have this beautiful center (cherry finish) with a DSW PRO400 with the Polk RAti12's mains bi-wired and rears I have ODS Kevlar 6.5" 2-ways with 1"silk tweet and my sub stage two martin logan dynamo
Mains
Surrounds
Subwoofer(s)
CSiA6 Media
CSiA6 Literature
Want to know more? Want to dig just a little deeper to learn about this product? Here's a list of source material that will give more detail, other perspectives, and answer questions you may have.
Frequently Asked Questions
- Why are my speakers distorting and popping?
- What wire should I get? What gauge?
- How do I choose between all the different home audio speakers?
- What center speaker matches with my older Polk speakers?
- How long is the warranty on Polk loudspeakers?
- How do I obtain service for my loudspeakers?
- Why did my speakers break?
- What type of speaker wire should I use?
