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Polk Audio CSi A6

Center channel speaker (Cherry)

61 Reviews | 4 questions - 8 answers

Item # 107CSIA6C

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Was: $399.99

Special Purchase: -$160.00

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Our take on the Polk Audio CSi A6

The Polk CSi A6 anchors clear, crisp movie dialogue to your TV screen and delivers thrilling special effects, thanks to its advanced driver technology and solid construction. Polk carefully designed the woofers and tweeter using laser testing to help identify and eliminate resonance points. The acoustically inert MDF cabinet fights internal vibrations that can compromise performance. It all adds up to smooth, accurate sound with DVDs and multichannel music sources. And a real wood veneer finish gives the speaker a warm, refined look, making it an attractive addition to just about any room.

Enjoy detailed sound from this solidly built center channel

The Polk CSi A6 anchors clear, crisp movie dialogue to your TV screen and delivers thrilling special effects, thanks to its advanced driver technology and solid construction. Polk carefully designed the woofers and tweeter using laser testing to help identify and eliminate resonance points. The acoustically inert MDF cabinet fights internal vibrations that can compromise performance. It all adds up to smooth, accurate sound with DVDs and multichannel music sources. And a real wood veneer finish gives the speaker a warm, refined look, making it an attractive addition to just about any room.

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Product Highlights:

  • video-shielded
  • bass-reflex (ported) design
  • frequency response 55-26,000 Hz (-3dB)
  • handles 20-200 watts
  • 1" Dynamic Balance® silk/polymer tweeter
  • dual 6-1/2" Dynamic Balance polymer composite woofers
  • PowerPort® technology improves bass response without introducing distortion
  • 8-ohm impedance
  • sensitivity 90 dB
  • 5-way binding post terminals
  • real wood veneer finish
  • 24-1/16"W x 7-13/16"H x 14-1/4"D
  • warranty: 5 years
  • Our 60-day money-back guarantee

Seamlessly matches my RTi towers. Marked improvement in clarity of dialogue and our "movie experience" is more fun. This is a big but efficient center speaker.

Dick in Manassas, Manassas, VA

What's in the Box:

  • Cherry center channel speaker
  • One 9.5" kickstand
  • One 5.5" kickstand (installed)
  • 4 Self-adhesive rubber feet
  • Owner's Manual
  • Online registration sheet
  • Polk Audio product brochure

Polk Audio CSi A6 Reviews

Average Customer Review(s):

(61 Reviews)

Just buy it

Dick in Manassas from Manassas, VA on 11/15/2017

Crutchfield Customer Review (What's this?)

Seamlessly matches my RTi towers. Marked improvement in clarity of dialogue and our "movie experience" is more fun. This is a big but efficient center speaker.

Pros: Build quality, sound quality, efficiency

Cons: Large size means it may not work for everyone

Polk Audio CSi A6

Samuel from Raymore, MO on 11/10/2017

Crutchfield Customer Review (What's this?)

Very large but sounds and looks awesome

Pros: Sound

Cons: Very large

Polk Audio CSi A6

Anonymous from Richmond, VA on 10/28/2017

Crutchfield Customer Review (What's this?)

My purchase of the CSI A6 was a HUGE upgrade from my smaller T30 center.. The clarity that projects across my living room is amazing, you will not regret this center channel and it will match up with your high end tower speakers! P.S The customer service I received when ordering was unbelievable, I just became a Loyal Crutchfield customer for life!



Polk Audio CSi A6

Rodney from Randlestown Md on 10/10/2017

Crutchfield Customer Review (What's this?)

Great speaker for the price. A large speaker.

Pros: Great sound

Cons: Size. A large speaker

Polk Audio CSi A6

Anonymous from Las Vegas, NV on 10/5/2017

Crutchfield Customer Review (What's this?)

I have bought 4 of the over the past few years. Have I heard better, yes, but at 3 times or more the price.

Pros: Durable, scratch resistant finish. One of the few centers with dual 6 1/2" drivers.

Cons: None.

Poll Audio, Take 2...

Daryl from Murrieta, CA on 10/5/2017

Crutchfield Customer Review (What's this?)

The Polk Audio CSi A6 was an excellent purchase... In replacing a Polk Audio CSi A4 that I bought 2 years ago and then fried voice coil (my fault), the CSi 6 is much more beefier, has better sound, still perfectly matches my system and gives me the confidence that it can handle any source that I throw at it, wether it's the center channel duties from hi-res audio and surround sound from CD, dts-CD, DVD-Video, DVD-Audio, SACD, Blu-ray and BD-Audio... Very happy with the purchase...

Pros: Excellent sound, still matches my current system and bigger, but not TOO big... Polk Audio...

Cons: None...

Good sound

Ben from Radford, va on 10/4/2017

Crutchfield Customer Review (What's this?)

Good stuff

Pros: Sounds great. Looks good too!

Cons: Big this speaker is huge compared to the other center channels I've seen.

A great center channel speaker!

Marc from Plymouth, IN on 7/18/2017

Crutchfield Customer Review (What's this?)

Due to a home remodel we were able to upgrade our old book shelf speaker 5.1 system with a new Polk Audio speaker system. I purchased the CSi A6 along with the RTi A7's (mains) and the FXi A6's (surrounds). There was no where for me to go to actually listen to any of these speakers but based on our budget, reviews and Crutchfield's return policy, I decide to buy all 5 speakers. The CSi A6 is a big center channel but it sounds great! I wanted to get the larger A6 because the room is 23' x 13' with the main seating position 20' away from the TV. I needed to get a center channel that could fill the room and get the job done. The CSi A6 has exceeded my expectations. It's a great speaker for the price! I was impressed with the clarity and depth of sound it produced to our movies! Definitely a great purchase!

Pros: built in rear kickstand to adjust direction of speaker; can be bi-amped!

Cons: It's a big center channel but it's well worth it! Make sure you look at the dimensions to make sure it fits!

Wide open natural Polk sound with perfect tonal quality

Craig from Seattle, WA on 6/16/2017

Crutchfield Customer Review (What's this?)

This center is a match for my "vintage" Polk main speakers and I've been wanting to add it to my home theater for a while. Having just gone on sale I had to pull the trigger and I can't be happier. It has the wide open "natural" polk sound, and the tone matches my other speakers perfectly.

Pros: Matches my vintage monitor 5B's and RTA-8TL speakers perfectly!

Cons: none that I can think of, it is large but perfect if you have the space under your panel.

Quality Center

Mark from Salt Lake City, UT on 6/4/2017

Crutchfield Customer Review (What's this?)

I purchased this center to go with my new RTIA9's. It Replaced a Polk CS1000p that went with my Polk RT2000p's. So far I'm very impressed with this smaller center for its size. I do wish they built for driver model again. It doesn't have the depth of the CS1000p but it shouldn't. A few changes to my crossover settings made a great center. My RTI A9's give enough depth to the front stage. The new tweeters that Polk went with for this line is impressive. Very clear and detailed. For the money this is an awesome and I'm not regretting the change.

Pros: Very detailed and works great with RTI A9's. Quality construction. Nice fit and finish.

Cons: None for its size.

Polk audio

Spicer from Tucson, AZ on 8/20/2016

Crutchfield Customer Review (What's this?)

very clear

Pros: very clear

Cons: none

Incredible Speaker!

Bill from Del Rio, TX on 8/20/2016

Crutchfield Customer Review (What's this?)

I bought this as an upgrade from my Polk Audio CS350-LS expecting it to be a little better in the bass area due to larger drivers. What I didn't expect was the HUGE improvement it made in clarity of vocals, the depth it added to the lower frequencies. This truly is a full range speaker. I found myself listening to multi channel music through this speaker and really enjoying it! The life it brought to movies compared to my 350 was like night and day. I am seriously considering using two of these as front width speakers in my HT set up! Thanks Polk Audio, once again, for a beautiful looking and sounding product. Thanks Crutchfield for carrying this wonderful line and for your incredible customer service and your sales team, truly remarkable in this day and age!

Pros: Very powerful sound Clear dialogue in movies Great for multi channel music Blu Rays

Cons: A bit large depth wise

Good center channel, sounds good with my RTi A7's

jwb from Springboro, OH on 4/13/2016

Crutchfield Customer Review (What's this?)

It sounds good, voices are clear and my towers sound strong

Pros: Very good center channel speaker

Cons: a little big and expensive

Great Product

Parshan M. from Las Vegas, NV on 4/6/2016

Crutchfield Customer Review (What's this?)

Once again Polk and Crutchfield lives up to their reputation. Very satisfied.



Great Upgrade

Pete from Wilton Manors, FL on 2/15/2016

Crutchfield Customer Review (What's this?)

Upgraded from a Polk CS series center speaker. At first I was concerned that it wouldn't fit in my entertainment cabinet, but removed a shelf and it works perfectly. Great improvement in clarity of dialog over the TV or my older, smaller center speaker. Much better highs and lows even during music on movies and shows. Highly recommend this speaker.

Pros: Excellent sound from TV and Movie dialog. Very good highs and lows to support surround sound system.

Cons: Large and heavy. Make sure you have room for this speaker before ordering because once you hook it up you'll never want to return it.

Polk Audio CSi A6

matt from orlando, FL on 2/6/2016

Crutchfield Customer Review (What's this?)

Fantastic Center Channel!!!



CSi A6 - great decision

Doug C from gulf breeze, FL on 2/5/2016

Crutchfield Customer Review (What's this?)

Decided to go with the A6, instead of the A4 and glad I did. This thing is a beast

Pros: Great center channel


Great product and great service

Norris from Wilmington, NC on 1/21/2016

Crutchfield Customer Review (What's this?)

Crutchfield always delivers the best service and best knowledge. I ordered this online after researching all of the reviews and in-depth review on their site. This is an amazing center channel speaker. Just as others have noted, it is a large speaker but the sound quality more than makes up for it. spend the money and get a speaker that is well worth it

Pros: great sound quality, cherry cabinet looks great

Cons: size

Awesome center channel speaker

Carole from New Jersey on 12/18/2015

Crutchfield Customer Review (What's this?)

Love this center speaker. Wish I had purchased sooner. Worth the price! Crutchfield is GREAT!

Pros: Looks great, sounds great with RTi6 tower speakers!

Cons: Would have purchased sooner, but had to come up with a solution for location since it wouldn't fit in lower cabinet and too big for wall mount.

Very good center speaker

Mike M from California on 12/14/2015

Crutchfield Customer Review (What's this?)

Polk Audio CSi A6 Center speaker is a very good choice for my home theater at a reasonable price.

Pros: Very good quality and sound. The price is reasonable.

Cons: None

Clear Detailed Spacious Vocals

Joe from Florida on 4/27/2015

Crutchfield Customer Review (What's this?)

I purchased the CSi A6 Center Channel Speaker on 12/18/14 to compliment my Bi-amped Polk Monitor 70 Tower Speakers and SVS SB-1000 Subwoofer using a Onkyo AV Receiver, Dune HD Media Player, and OPPO Blu-ray Player. I liked the specs: 55-26k Hz frequency response, 90 dB Sensitivity, 20-200 watts power range, 6-1/2" woofer and dome tweeter in a bass reflex forward ported cabinet all combined to produce clear detailed spacious vocals without being harsh and overbearing or sounding "boxy". It's important to set the center channel speaker configuration Crossover Frequency settings in your AV receiver to your sound preference and listening area dimensions. THX recommends setting the crossover frequency at 80Hz but I prefer setting it to full band. After four months using the CSi A6, movies, music, and even regular TV all sound great. I am very happy with it. It was money well spent and I expect it to last for many years of listening pleasure.




Bill from North Carolina on 4/7/2015

Crutchfield Customer Review (What's this?)

Set up a system for my in home gym. Running a Onkyo 828 receiver, 2 Polk Audio RTi A9s a Polk Audio 660wi powered 12" subwoofer and this Center Channel. Awesome combination that just ROCKS the room. The room is 20'X20' and it could probably handle a room twice that size


Cons: SIZE

Center Channel upgrade

Joshua from Indiana on 3/28/2015

Crutchfield Customer Review (What's this?)

Was looking to upgrade a set of Polk speakers (RM7600) I was using in home theater. After researching stuck with Polk. This center channel sounds awesome. Using an Onkyo receiver as the driver. The speakers do not disappoint whether listening to music or viewing movies.

Pros: sound quality superb for the price.

Cons: only negative could be the depth of the speaker if you don't have room. (mounted mine above the TV and it fits perfectly there)

Polk CSi A6

cpinmi from Michigan on 2/16/2015

Crutchfield Customer Review (What's this?)

Added this center channel to my ht setup of rti a7 fronts and fxi a4 rears along with the dsw pro 660wi subwoofer all powered by a Yamaha Rx v775 receiver. Epson 5030 ub projector. Elite 120" screen. This speaker replaced a Kef Q600c that failed after 9 months of moderate use. This was the center channel I wanted at the time but I couldn't afford it. I dropped the cash this time and the difference is amazing. Wishing I had spent the money upfront on it. Highly recommended at least for my setup. Our seats are 18 feet from the screen. 1800 square foot basement and we are using about 1000 sq ft of it for the ht. Stairwell divides the room. Lots of openness but this speaker makes the audio crystal clear on all types of programs. We have DirecTv, we stream Netflix, WatchEspn and other apps via AppleTv and we have a PS3Move we use for 3d movies and gaming.

Pros: Great sound. I like that it is concaved so it can be flipped to project sound up or down to suit your needs. Audio is crisp and full. Surround sound moves equally around the room with no highs or lows.

Cons: It is big so plan for that. Well worth the size.

Great Center Speaker

Michael from Carson City Nevada on 1/18/2015

Crutchfield Customer Review (What's this?)

When I contacted Crutchfield to buy a new set of speakers, the sales rep helped be be sure the front 3 match, and boy do they!

Pros: Amazing sound quality!

Cons: A bit to big to truly hang on the wall below my TV, but I wouldn't change it for any other!


Plummit from Northern Minnesota on 1/18/2015

Crutchfield Customer Review (What's this?)

I was a little concerned with the size of this thing, however, in the case of a center channel speaker being responsible for a vast majority of the audio while watching TV or movies, it only makes sense. The Cherry finish is flawless and compliments our decor very well.

Pros: Sound quality. Performance. Looks.


Exceptional! A Great Big Wow!

Lite T from Florida on 12/1/2014

Crutchfield Customer Review (What's this?)

Polk has been my favorite speaker for a long time. This center channel speaker, the CSi A6 far exceeded my expectations. My music, movies, and even TV shows come alive with my new center speaker -- a very important part of my Home Theater System. My recommendation: make the purchase; you will be very pleased!

Pros: Everything about it: design, performance, output, and even appearance!

Cons: none.

Great Quality and Excellent Sound.

Robert from Midland, Texas on 11/11/2014

Crutchfield Customer Review (What's this?)

Great price, excellent woodwork on enclosure, and near perfect sound. I was impressed from the time opened the box...this speaker is packaged beautifully, is heavy, and sounds GREAT. I would highly recommend this speaker for a center channel speaker system. The quality cannot be matched in my opinion.

Pros: price, quality, and sound.

Cons: none.

CSi A6

Anonymous from Jupiter, FL on 6/6/2014

Crutchfield Customer Review (What's this?)

A must have for 5.1 or 7.1 audio systems. Takes all you ask it to do... and more.



Polk Audio CSi A6

Anonymous from Archie MO on 4/14/2014

Crutchfield Customer Review (What's this?)

So far very happy with item I waited a couple months before reviewing item and I would by again granted I haven't ever had a center channel before so I don't have much to compare it to but seems good quality and it's always a safe purchase with Crutchfield service

Pros: Looks good sounds good

Cons: None

Best Center Speaker Ever

Kellerman from Cincinnati, Ohio on 4/13/2014

Crutchfield Customer Review (What's this?)

Absolutely amazing. Been looking at this speaker for over a year and decided it was time to break down and buy it. I have an Onkyo 1009 with 2 Polk Audio RTi-7 and this speaker just finishes it. very loud and crisp and it never strains to deliver. Not gonna buy anything better then this.

Pros: Nice finish, very loud, very clear.and of course, it's Polk Audio

Cons: Just very large.

Polk Audio CSI A6

ChrisD from Laredo, TX on 2/13/2014

Crutchfield Customer Review (What's this?)

Excellent speaker if you have the space. Crisp clear sound not disappointed at all with this purchase.

Pros: Excellent sounding speaker

Cons: Size

Voice Clarity

m d from Central Indiana on 1/6/2014

Crutchfield Customer Review (What's this?)

Good clarity. Compared to previous unit, wife says voices no longer "muffled" and can now "understand" the content. Voices are robust and distinct. Blends perfectly with my RTiA7s - a noticeable improvement. The unit is large but fits fine (slightly pointed downward utilizing attached stand) atop my entertainment armoire.

Pros: Sound quality. Adjustable kickstand. Binding posts. Bi-wire capable. Nice looking wood cabinet.

Cons: Large size might result in less-than-optimal placement.


Anonymous from Lexington,MA on 9/23/2013

Crutchfield Customer Review (What's this?)

SUPER HAPPY with this center speaker. An upgrade from my old sony center. Clear and crisp sounds. Works great together with my other Polk speakers.

Pros: clear and crisp sound. looks nice

Cons: none

Great Speaker

Ruty from Atlanta, GA on 9/19/2013

Crutchfield Customer Review (What's this?)

Replaced tired Klipsch center. Great sound

Pros: Easy to install, fast shipping

Cons: VERY large - when I need a new center I will get a smaller unit

Sound great

TomC1965 from Kunkletown, PA on 9/12/2013

Crutchfield Customer Review (What's this?)

These are still new to me and maybe they are not all the way broken in. Compared to my last speakers these have more highs and midrange. All the different sounds seem separate like the drums, cymbals, guitars, etc... My last speakers didn't have the highs or midrange so the sounds were blended and muddy. These are not at all. The only thing I find I don't like about them is that the tweeter sounds scratchy when I play any song with a lot of highs in it. This is rather large. Like the cabinet and would buy them again if I needed to. I would give these a 3.5 but I cannot do that on this website.

Pros: Have decent bass, excellent midrange, good highs, and a large sound stage

Cons: When really close to the speaker with it playing the tweeter sounds scratchy and blown.

Polk A6

EddieLee24 from Cary, NC on 8/19/2013

Crutchfield Customer Review (What's this?)

Bought this speaker to match my new A9s. Blends in well and has good bass with the dual 6 1/2s.

Pros: Sound

Cons: Depth

Perfect Fit

JonBoz from Carbondale, IL on 8/18/2013

I've been using this center channel speaker several days now and love it. In combination with four other large speakers (Altec Lansing-like 604's, actually by Great Plains Audio) and a powered subwoofer, the CSi A6 holds its own. I really filled out voices and center-action events in DVDs. I've not tried it yet with classical music, but it should be just fine. I auditioned this unit with another one costing $800 and picked the CSi A6 since it actually sounded as good and looked nicer (real wood versus glossy plastic). My system: Two Great Plains Audio 604 8H II in self built cabinets Two GPA 8H III's in self built cabinets Aperion Intimus S12 Powered Subwoofer Polk CSi A6 Center Channel Yamaha RX V-663 receiver Sony Bravia 42" LCD

Pros: Great sound, excellent workmanship of cabinet.

Cons: None - some people object to size, but it fits perfectly on top of my stereo sidebar, just under the TV.

A noticeable difference.

PAenthusiast from Fresno, CA on 8/4/2013

Crutchfield Customer Review (What's this?)

I was amazed at how much better my surround sound system performed when I swapped out my old center channel system for the new one. Voices were noticeably more clear and it made the experience more theater like. I would reccomend this speaker to a person who wants the more defined sound AND has the space for the speaker. A nice upgrade!

Pros: More defined sound. Wood finish looks great.

Cons: Large and heavy speaker. Isn't ideal for some setups.

Polk CSI A6 is schweeeeet

Nate from Hogansville GA on 7/22/2013

Crutchfield Customer Review (What's this?)

I'm blown away by this speaker first I ordered the tl1, then I ordered the tl3, and neither of them did any thing for me since a have the RTI A7's. I just couldnt take it any longer and had to order the CSI A6 man I'm glad I did of course the wife almost killed me but it was worth it. We both agree the sound quility is phenomenal especially with the towers, and the look of them is absolutely beautiful. Now I don't have to waste time or money buying anything else cause that's exactly what you'll if you don't buy the right one the first time is waste money by this speaker and never have to by another one again....


Cons: NONE


Bruce from Appleton, WI on 6/5/2013

Crutchfield Customer Review (What's this?)

Would not have purchased any other product!!!

Pros: Many

Cons: None

Polk CSi A6

Chris B from Burbank, CA on 1/15/2013

Crutchfield Customer Review (What's this?)

This is part of my first home theater setup and I am enjoying this center speaker, it sounds great and looks great.



Very nice center channel

BrianD from Shelton, CT on 1/13/2013

Crutchfield Customer Review (What's this?)

This speaker sounds excellent, but is very large compared to many of the other center channels I've seen. Stupidly I didn't pay attention to the measurements before I ordered, so I had to rearrange some things to make it fit. If space is not an issue, this speaker is great.



Great but not best price

Alan from Sea Bright. Nj on 11/28/2012

Crutchfield Customer Review (What's this?)

Quick ship, knowledgable customer service

Pros: Knowledgable customer service

Cons: Not best price


robert from red river, nm on 9/21/2012

Crutchfield Customer Review (What's this?)

im glad i didnt cheap out. this center channel should last for a good 10 years. sounds great, looks great. even my wife likes the look and sound. might be a little big for some people so measure before you order. i had plenty of room so it didnt matter to me.

Pros: sound looks

Cons: none as yet

CS10 vs CSi A6

Joe C. from Laurel, MD on 8/17/2012

Crutchfield Customer Review (What's this?)

Okay, so I've been using the CS10 center with my system for the past few years now. I own the RTi A7's. This little center is not too bad if you're on a budget. But honestly, something was lacking. It just couldn't keep up with my mains. I'm talking about movie scenes ie. Terminator 2 when Arnie is riding around on that bad-ass Harley. Sounded more like a Yamaha! I came to the conclusion that I really needed an upgrade. Patience is a virtue. The CSi A6 was finally on sale! I happily ordered one here on Crutchfield and did not look back. It's like night and day guys. Much fuller sound! This CSi A6 is a perfect match with the RTi A7 tower speakers. So I watched that scene from T2 again and was just blown away! That's what a Harley sounds like! This center channel speaker makes me want to re-watch all of my old movies now because everything sounds so much better! Go ahead and pull the trigger on the CSi A6 if you're in the market and while it's on sale. Come to think of it, now that I know how good this speaker really is, I would've paid full price and still been very satisfied.

Pros: Higher highs and lower lows vs the inferior CS10. Much fuller sound. Perfect match with the RTi A7's.

Cons: Pricey, yet still a bargain for the quality of sound. Remember, this is the most important speaker in your home theater system.

Great Product

Bjorn from Saratoga, CA on 7/31/2012

Crutchfield Customer Review (What's this?)

The CSi A6 completed my full 7.2 surround sound system. The majority of my speakers are built into the wals, but I wanted the front and center speakers to be stand alone. This allows me the opportunity to upgrade as needed, as well as much better pure music sound, as the system serves two purposes.

Pros: Good price, great speech reproduction, great mid range as well. Matches the performance of my existing front Polk speakers

Cons: None so far....

Amazing sound

Blake from Royal oak,mi on 4/20/2012

Crutchfield Customer Review (What's this?)

Had a much small created channel before this and wanted something that would really bring out the voices in my music and movie watching. This hit the spot, run with with polks rti A9's and their 10" sub powered by a denon 3312, everything I watch sounds amazing.

Pros: Sound clarity, bi-wire capability, looks great

Cons: None so far

A Must Have

Diego from US Virgin Islands on 3/5/2012

Crutchfield Customer Review (What's this?)

I bought this speaker along with a set of the RTiA3,RTiA1 and a DSW550 subwoofer from Crutchfield. After hearing this speaker all I can say is that it is a MUST HAVE speaker. It made a great difference on my HT. The speakers set is run by the fantastic Yamaha RXV871 that make those speakers dance. Crutchfield people made the transaction a delight. I received the speaker in two days. Five stars for Crutchfield!!!

Pros: Excellent sound and clarity, fantastic quality and craftmanship and beatiful cherry finish.

Cons: none



Crutchfield Customer Review (What's this?)





GD from Atlanta, GA on 7/26/2011

Crutchfield Customer Review (What's this?)

Wow! I bought this to replace a 13 year old BA center channel in my 5.1 system. The change in overall sound and depth is astounding. I also assume it will only get better after break in time. I would highly recommend this center. I have heard many friends systems that now just dont compare.This center has vastly improved my systems sound even with my older front, back, sub. I plan on replacing these with sound matched Polk front and rears soon. FYI...The speaker is Large so make sure you measure your spot for it. I would not want it mounted on the wall as it is just too large to be pleasing to the eye.



Finally a Great center channel at a Great price!

Chad from Auburn, CA on 7/21/2011

Crutchfield Customer Review (What's this?)

I'm the type of audio file that takes the time to find the right component for serious listening. This venture took a some time. I found THE ONE. The Polk CSI A6 I beleve is the best bang for the buck. I would consider the CSI A6 compairable to center channels costing 3 times as much. After quite some time allowing for break in (about 50-60 hours easy) this bad boy came alive. Very crisp, clear, and realistic. When paired it with my front speakers (some position/tunning) the sound stage became extreamly wide. Definitely a full range center. At this point no sub needed. As for home theater use the hard working CSI A6 is very commanding and accurate. I bought the cherry wood. Looks great. Impressive porting front and rear. My freinds and fam say "wow" thats cool. My wife says it's beautiful. Yah, I scored Big Time.



Floor Rattling Nirvana

Noeardrums from charlottesville, va on 6/24/2011

Great, great, great improvement over my out-the-box Sony system. I expected a marked improvement, but not another world of listening...and I haven't replaced the surrounds in my system yet. The Polk CSi A6 shook the floor!! No loss in sound quality at high volume. Great range with movies and great power with music. (I started to get the CSi A4 but wanted more punch. If you can't afford the perfect system, indulge on the workhorse....the center speaker). I'll be replacing the surrounds next week.



Polk Audio CSi A6

Vicki from College Grove, TN on 11/1/2009

Crutchfield Customer Review (What's this?)

It's a wonderful center speaker, and it's beautiful also. But I didn't get any little rubber feet to put on the bottom, but I just happened to have some. it's top notch.



Excellent Polk Center

Tom from NW, Arkansas on 1/17/2009

Crutchfield Customer Review (What's this?)

Bought this as part of a complete upgrade to my system. My old Polks were retired and replaced with fresh RTi A7 fronts, RTi A1 bookshelf surrounds, and the CSi A6 center. Also replaced my aging Velodyne with a new Polk Micro Pro. I am currently powering this system with a 100 watt per channel Denon. The result- total listening bliss. The CSiA6 is an incredible center. It is very, very precise and clear and provides for easy understanding of movie dialogue without having to ever strain. When I auditioned the equipment I considered both the A4 and the A6. While both sounded fine, the A6 seemed fuller and seemed to match the the other speakers better to me. Yes, it is large. But it fits perfectly in my entertainment center, so not an issue with me. I am very, very impressed with this.



Gorgeous Sound

xandra from Rochester, NY on 6/24/2008

Crutchfield Customer Review (What's this?)

Pros: Audio quality is spectacular both for dialog and music. This is a MAJOR upgrade from CSi3/CSiA4 model. The sound is remarkably full and rich with excellent detail in all ranges. I have it matched with my RTi10's but I wouldn't hesitate to purchase with Polks that recc'd the CSiA4 unless you have an underpowered receiver. Also be aware that Polk has outstanding support, so it's an excellent brand to consider. So why not 5 stars?.... 1 Con: This puppy is ENORMOUS and weights a ton. Thus it won't fit in most center speaker compartments in cabinets. and realistically would need a seriously mounted shelf (shelf supports) to put on a wall. And although the curved profile looks beautiful, I miss the ability to set the speaker at an angle in order to direct sound like the previous (CSi5) model. THE UPSHOT: If you have a place to put this - don't think twice, you'll be thrilled. Also, don't waste your time deal hunting - they cost the same everywhere - buy 'em from Crutchfield and you'll have fabulous speakers with top-notch service.



Finally, great dialogue

Ken from maplewood, nj on 4/29/2008

Crutchfield Customer Review (What's this?)

The CSiA6 is a great center channel speaker, dialogue is crisp and tonally correct, very detailed, open and extended range. As a point of reference, my HT occupies about ½ of a 16' x 24' room so is essentially a small installation, about 16' x 14' with sound quality versus quantity as the guiding priority. For better or worse I have tested a number of Polk center channel speakers as my system has been 'evolving' since the original purchase of the Polk CS2 to be used with Polk Monitor 40s up front before deciding to get a sub. As an aside, the CS2 was never a great match with the 40s, instead the CS1 was a very good match and had I not decided to get a pair of RTi A1s to replace the 40s as front speakers I would have stopped there and been happy. Please see other review re RTI A1s. If the CSiA3 sounded as good as the RTiA1 they would be great, they do not in my view, but the CSiA6 does and is a great center channel. Too bad of course that the smaller CSiA3 did not get the job done, @ $150 less this would have been great, but in the end; the A6 is well worth the additional cost. Hope this helps, Crutchfield is great, would not buy anything they carry from anyone else. HT Gear: Sony SXRD KDS-50A3000 50" rear projection HDTV Sony BDP-S300 Blu-ray player Onkyo TX-SR705 receiver Polk RTi A1 front speakers Polk CSi A6 center speaker Polk RM8 rear surrounds Polk PSW111 powered subwoofer



Spot On Dialogue

Larry from Cincinnati, Ohio on 4/28/2008

Crutchfield Customer Review (What's this?)

I am replacing an 18-year-old 5.1 system and decided to seriously upgrade the center speaker! Wow, what a nice sounding product that is beautiful to look at. When my friends walk in and see this speaker, they stop in their tracks. This really does give my room a feel of a proper theater. I have a dedicated 2,850 cubic foot theater room and added a complete 7.0 system from Polk (I already had a new 12" 350WRMS Sub). A tower speaker was ruled out due to the WAF (Wife Appreciation Factor) and the built in 15' wide entertainment center. I paired this speaker with the RtiA3 front speakers, FXiA6 surround speakers and RTiA1 back surround speakers. The sound field produced is amazing for clarity and balance and with a proper AVR & HD player; the Wife & I are never going to the Cinema again! Whether you are watching a concert HD Disc or Hollywood movie, the sound is so accurate and believable to what you are watching. This speaker produces an experience with sound that I have never heard before. The Sub takes care of the LFE and that allows the rest of system to work the mids and highs to perfection. The sound is warm, inviting and immerses the listener. I can now listen to HD movies at higher SPL without any discomfort (at certain frequencies) that bothered me with the old system. This system will easily support me for another 18 years (Sorry Crutchfield!)



Champion speaker

Todd from Glendale, CA on 4/26/2008

Crutchfield Customer Review (What's this?)

I purchased this center channel speaker for my family's 5th wheel trailer (to marry up to my new Yamaha receiver) because the built-in cube surround sound speakers could not provide the voice clarity and separation. Connection to the Yamaha receiver using Monster Ultra speaker cable was a breeze. More importantly, this Polk center channel provided the voice separation and clarity along with some additional bass and allowed the entire system work beautifully. Eventhough this Polk center channel speaker is not paired up with other Polk speakers, it has improved our trailer entertainment system dramatically and is the champion speaker of the system.



Polk Audio CSi A6

Joe from Germantown MD on 3/2/2008

I had been shopping around for quite some time. After speaking with Bryce at Crutchfield. I decided to purchase this speaker. WOW, am I glad I did. The sound is amazing. I've only had it a couple of days and can't wait to really sit back and enjoy it. Polk and Crutchfield make a great pair. I also bought a pair of RTI6's for the front channel. They sound perfectly matched to the CSI6. Thanks!



Great speaker

Alex from SF Bay Area, CA on 2/10/2008

Crutchfield Customer Review (What's this?)

Bought this one to add center channel to a pair of RTi12's, since CSi5 has been discontinued. Great product, just like the rest of them, from Polk. I enjoy the sound from my system very much. Thanks to Chrutchfield for great communication and prompt shipment, as usual!




Hands-on research

Features and Specs

Enclosure Bass Reflex
Tweeter Dome
Midrange size (inches) ---
Woofer size (inches) 6-1/2
Connector Type 5-way post
Power Range 20-200
Sensitivity 90 dB
Impedance (Ohms) 8
Frequency Response 55-26k Hz
Height (inches) 7-13/16
Width (inches) 24-1/16
Depth (inches) 14-1/4
Weight 29 lbs
Parts Warranty 5 Years
Labor Warranty 5 Years

Product Research

Driver Technology
Enclosure Design
Mounting Options

Driver Technology

Dynamic Balance: Dynamic Balance is a proprietary Polk Audio technology using laser imaging to determine what combination of speaker materials create the least amount of resonance. Eliminating resonance in speakers results in a wide, smooth response and low distortion.

Polymer Composite Woofers: The speaker features two 6-1/2" polymer composite woofers for smooth wide-range response with low distortion. For high performance durability, each woofer uses a butyl rubber surround and an acoustically inert stamped driver basket.

Silk/Polymer Tweeter: The speaker has a 1" silk/polymer dome tweeter that provides clear, detailed highs. The tweeter uses a heat sink on the Neodymium magnet for superior heat dissipation, power handling and reliability.

Mylar Bypass Capacitors: Mylar bypass capacitors in the speaker's crossover network extend high frequency response and improve detail and transparency.

Frequency Response Note: The overall frequency response is 45Hz-27kHz and the -3dB frequency response is 55-26kHz.

Enclosure Design

Acoustically Inert Cabinet: The speaker cabinet features all-MDF construction with extensive internal bracings that virtually eliminate sound-muddying resonance.

Acoustic Resonance Control (ARC): Internal cabinet resonance can impart a "thick" character to voices. Polk's patented Acoustic Resonance Control port system overcomes this problem. In addition to the Power Port venting system, the speaker has a front-firing port that is tuned to suppress the internal cabinet resonance, resulting in smooth, natural midrange reproduction.

Power Port Venting System: The speaker has two rear-firing Power Port vents built into its two-piece back plate for precise deep bass response. This venting system allows air velocity to slow gradually, vastly reducing air turbulence, and delivering greater bass efficiency than conventional ports. The center channel speaker also features a front firing port for added efficiency and bass response.

Anti-Diffraction Grille: The floating anti-diffraction grille minimizes grille diffraction for spacious, 3-dimensional imaging.


Dual 5-Way Binding Posts: The speaker has two sets of gold-plated 5-way binding posts connected by gold-plated jumpers. Using the dual 5-way binding posts, you can bi-amp or bi-wire the speaker. The gold-plated 5-way binding posts will accept bare wire, pin connectors, spade connectors, banana plugs, and dual banana plugs.

Mounting Options

Reversible Design: If the speaker must be positioned below ear level, you can turn the cabinet upside down, allowing the drivers to fire upward.

Adjustable Kickstand: The speaker features a unique Adjustable Kickstand for secure balance on shallow-depth TVs and monitors.

Magnetically Shielded: The speaker is magnetically shielded, allowing you to place it on your television without distorting the picture.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

Highly recommended for my Polk Towers. [ Dave  Nov 18, 2017 ]
Need to wake up the Denon AVRX 6200H [ S  Nov 14, 2017 ]
Timbre matched to my front speakers. Love Polk for Home Theater. Black finish looks great in my setup. Great reviews from others whose opinions I trust. Recommended by those on Polk forums. Great Price + Great Quality + Great Performance + Great Longevity = AWESOME!!! [ Richard  Nov 02, 2017 ]
I chose this center since I already have a pair of Polk Audio RTi A7's. [ JACK  Oct 06, 2017 ]
I like Polk speakers. just bought 2 pair. Very good. [ RODNEY  Sep 27, 2017 ]
Recommended by Lucy R during Crutchfield home audio consulting process [ tyler  Sep 18, 2017 ]
Matches the front towers I currently own [ spears  Jun 25, 2017 ]
High performance and looks good too [ GREGORY V  Jun 18, 2017 ]
cs1 to small [ Adrian  Feb 21, 2017 ]
Good price, good reviews, and I already own Polk RTi tower speakers. This center channel speaker is supposed to be timbre-matched to my towers. [ Andy  Sep 20, 2016 ]
My current center channel is a Polk. i am getting ready to upgrade my TV from 52" to 70" I figure is time to upgrade my surround sound as well. I like the reviews on the center channel and its affordable to buy. [ Judy  May 22, 2016 ]
Upgrade from my current old center speaker [ Todd  Jan 17, 2016 ]
To hear better vocal sounds on my home theater that has two Polk RTiA7 front speaker, Polk powered DSW Pro 660 wi sub, (4) FXiA5 surround speakers, (4) RT-620 ceiling speakers all powered by a Marantz SR7009 receiver setup for Dolby Atmos. Viewing on an Epson PowerLight Pro Cinema 6030 UB with a 120" screen. Really great for family movie night!!! [ Frank  Dec 29, 2015 ]
Want to upgrade from my Polk CS10 and this one has great reviews. [ CHARLES  Dec 05, 2015 ]
Last piece of my polk system.having heard this center at volume,it is amazing.can not wait to get it hooked up. [ JEFFREY J  Oct 18, 2017 ]
My brother have this CSI A6 center speaker and sounds great. [ HITEN  Sep 25, 2017 ]
Polk makes the best speakers on the market. I've been a customer for many years. [ Douglas  Sep 08, 2017 ]
Mainly customer feedback and the sale price. [ Joe  Jun 16, 2017 ]
Reputation brought me to Polk, and after a year with the CSi A6 I can testify to the quality. It has brought my home theater to life, and corrected the sound of voices in movies, which used to sound muddy on just my old Technics towers. Also works great with old classic movies in mono, which I watch a lot of. [ steven  Jun 08, 2017 ]
Because it matched my Polk Rti A9's fronts and Rti A3's.surrounds. [ Steven  Mar 16, 2017 ]
Affordable quality center channel. [ ROBERT  Feb 02, 2017 ]
Purchased this product to go with my RTI A5 and I'm very pleased with this center channel. [ Christopher  Jan 03, 2017 ]
crutchfield stands behind their products. [ Daniel M.  Nov 22, 2016 ]
Have been wanting to upgrade my basement speaker system (from an old JBL Northridge system), read great reviews abut Polks and decided to give than a try. Very glad I did! This CC sounds and looks great! [ Jackie  Aug 08, 2016 ]
I'm slowly building a home theater system. I got this center channel to go with the existing RTiA7 front main speakers and polk subwoofer. One of these days I'll add the RTiA1s in the rear to finish the setup. [ BRENT  Apr 25, 2016 ]
Feedback [ Peter  Apr 06, 2016 ]
Good reviews, and matches/compliments the RTI A9's and A4's I purchased as well [ James  Feb 27, 2016 ]

4 questions already asked

I'm no expert, but I run my center at full range since the receiver's sound processing is going to send the proper frequencies to the right places. I, too, have a Yamaha receiver, the RX-V671, and I simply set the rear speakers to small and the center to Large and the system sounds just fine. Hope this helps. [ S  Jul 22, 2017 ]
Thanks for your question. For information on comparing two or more models I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences and help you make the best choice for your system and your budget. [ Kenny  Aug 24, 2016 ]  Staff
I dont know the exact dimensions of the box but its pretty much the same exact size of the speaker, the speaker fits snug in the box. and the dimensions of the speaker a rite on crutchfields site [ STEVE  Jul 04, 2015 ]
We have not received any answers from other customers on your question. I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They should be able to help answer your question. [ Krissy  Sep 19, 2014 ]  Staff
I put my speaker below the TV and on top of the console. If you put it inside the ported bass speakers will reflect sound inside the console instead of out into the room. I have a cherry console and the speaker looks great sitting on top. Furniture quality cherry. Everyone is impressed with the size and sound of my center speaker. Enjoy. I own two for different systems. [ GARY  Mar 31, 2016 ]
i put my center speaker directly below the screen on top of the consul so i could get the voice souhds as close to the people on the screen and be realistic as possible. it is perfict at that location for me. [ MARK T  Mar 31, 2016 ]
If space is an issue, I would highly recommend the Polk Audio CSi A4. The CSi A4 is just as good and will save you money and space in console for the ported bass on rear speaker. [ ROGER A  Mar 31, 2016 ]
I have mine on a shelf in a cabinet below my tv and am satisfied with the sound. [ Alan B.  Mar 31, 2016 ]