Customer Ratings & Reviews

I had the CS10 matched with my Polk Audio RTi12's. I upgraded to the CSiA4 as it is the timbre match. Big difference as they are seamless across the front stage.

The CSi A4 replaces an entry-level Polk Audio center. Great product, and great improvement over my previous center speaker. It was a bit sibilant at first, but after a break-in period (about 10 hours or so), it mellowed out and now blends perfectly with my 27-year-old Advent Maestro floor speakers.

I included the Polk CSI-A4 with the Polk DSW Pro 550wi subwoofer and Polk RTI A1 bookshelf speakers to complete my front surround sound system. The wood grain enclosure is solidly constructed. The sound quality of the CSI-A4 is exceptional for movies and music. It has a nice blend of crisp highs and even bass. This unit is a major upgrade from my Bose center channel.

Luckily, UPS did damage this speaker like they did my RTi-A7s. Great center speaker, highly recommended.

great sound at a great price, best addition to any home system is the center channel.

Still loving this speaker. Subsequently bought two Polk RTi speakers to use as surrounds. No matter what you throw at them, they deliver! I'm amazed at the tone and clarity at this price point. Still think I made an excellent decision.

Great sound, very pleased with quality. We would recommend

I already had the two fronts and the rear channel speakers. I needed the center channel, which is what I purchased. Now the voice matched speakers sound awesome with both movies and SACD music. I didn't think having voice matched speakers would make that much of a difference but I was definitely blown away.

Really like the sound quality of this speaker, great!

Better than expected frequency response gives clear dialogue channel while enhancing overall front sound. I even ended up turning down the volume on my sub woofer as there was more base noticible. Yet, the blend into my current speaker mix is pretty much seemless.

After I upgraded the LF / RF to RTi A5, the center became noticeably weak and I had to get this baby. Wow, what an improvement - voices were suddenly legible and subtitles weren't a must. When the voice moved to LF or RF, the character didn't sound like a different person. While Audyssey detected it a bit low (+2dB) compared to A5s (0dB), it was much better than the older one (+6dB). Overall, couldn't be happier for the price I paid ($ 1 6 0).

I've owned Polk Audio products for over 25 yrs and this speaker is the worst. Should of purchased a better model. The sound is dull and shallow. I am going to Best Buy and check on higher quality Polks.