Polk Audio Reserve R400 Centre Speaker - Walnut
Reserve R400- Overview The R400 offers unrivalled power and clarity from a center channel speaker. The addition of two 6.5” turbine cone woofers and Polk’s unique X-Port technology means it delivers enormous yet balanced sound, ideal for the ultimate home theater system. Crystal Clear Vocals for Home Theater The center channel is the most important speaker in any home theater setup. The Reserve R400 uses Polk’s latest flagship transducer array to deliver clear, crisp, intelligible dialogue no matter where you sit. Turbine Cone Woofer Our pioneering turbine design delivers a significant increase in cone rigidity without increasing mass. This innovation means the woofer can move with increased accuracy and speed to deliver enhanced sound resolution, enabling you to experience a breathtaking level of detail in your music and movies. X-Port Polk's proprietary X-Port eliminates unwanted noise created as air moves in and out of the speaker cabinet port at high-speeds. This ensures a rich and detailed listening experience with tight distortion-free bass and a clean midrange.
Reserve R400- Overview The R400 offers unrivalled power and clarity from a center channel speaker. The addition of two 6.5” turbine cone woofers and Polk’s unique X-Port technology means it delivers enormous yet balanced sound, ideal for the ultimate home theater system. Crystal Clear Vocals for Home Theater The center channel is the most important speaker in any home theater setup. The Reserve R400 uses Polk’s latest flagship transducer array to deliver clear, crisp, intelligible dialogue no matter where you sit. Turbine Cone Woofer Our pioneering turbine design delivers a significant increase in cone rigidity without increasing mass. This innovation means the woofer can move with increased accuracy and speed to deliver enhanced sound resolution, enabling you to experience a breathtaking level of detail in your music and movies. X-Port Polk's proprietary X-Port eliminates unwanted noise created as air moves in and out of the speaker cabinet port at high-speeds. This ensures a rich and detailed listening experience with tight distortion-free bass and a clean midrange.
Reserve R400- Overview The R400 offers unrivalled power and clarity from a center channel speaker. The addition of two 6.5” turbine cone woofers and Polk’s unique X-Port technology means it delivers enormous yet balanced sound, ideal for the ultimate home theater system. Crystal Clear Vocals for Home Theater The center channel is the most important speaker in any home theater setup. The Reserve R400 uses Polk’s latest flagship transducer array to deliver clear, crisp, intelligible dialogue no matter where you sit. Turbine Cone Woofer Our pioneering turbine design delivers a significant increase in cone rigidity without increasing mass. This innovation means the woofer can move with increased accuracy and speed to deliver enhanced sound resolution, enabling you to experience a breathtaking level of detail in your music and movies. X-Port Polk's proprietary X-Port eliminates unwanted noise created as air moves in and out of the speaker cabinet port at high-speeds. This ensures a rich and detailed listening experience with tight distortion-free bass and a clean midrange.
Reserve R400- Overview The R400 offers unrivalled power and clarity from a center channel speaker. The addition of two 6.5” turbine cone woofers and Polk’s unique X-Port technology means it delivers enormous yet balanced sound, ideal for the ultimate home theater system. Crystal Clear Vocals for Home Theater The center channel is the most important speaker in any home theater setup. The Reserve R400 uses Polk’s latest flagship transducer array to deliver clear, crisp, intelligible dialogue no matter where you sit. Turbine Cone Woofer Our pioneering turbine design delivers a significant increase in cone rigidity without increasing mass. This innovation means the woofer can move with increased accuracy and speed to deliver enhanced sound resolution, enabling you to experience a breathtaking level of detail in your music and movies. X-Port Polk's proprietary X-Port eliminates unwanted noise created as air moves in and out of the speaker cabinet port at high-speeds. This ensures a rich and detailed listening experience with tight distortion-free bass and a clean midrange.
in 4 offers
The lowest price for Polk Audio Reserve R400 Centre Speaker - Walnut right now is $879.00 at Selby Acoustics, compared across 4 retailers.
The all-time low was $759.00 on 24 Apr 2026 — today's price is 16% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 15 June 2026.
Last updated at 15/06/2026 05:46:48
Polk Reserve R400 Centre Speaker Walnut
Free delivery
Polk Reserve Series R400 Centre Channel Speaker (Each) Brown Walnut
Free delivery
Polk Reserve R400 Centre Speaker Walnut
Free delivery between 18–26 June
Polk Audio Reserve R400 Center Speaker Brown R400brn
Free delivery
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originally posted on worldwidestereo.com
Excellent center; soundstage paired with two r700s is amazing. Elated with the Polk Reserve series having upgraded from 11yr old Polk Monitor series ii speakers.
originally posted on polkaudio.com
I have this with a pair of R600s. Crystal clear highs and provides for strong dialog clarity. The center speaker is the most important in a home theater system. Although it's a large center channel speaker and has a wide and deep cabinet it's not too tall compared to others.
originally posted on bestbuy.com
Much better than E350; deep and clear center........
| Overall Frequency Response | 36Hz - 50kHz |
Polk Reserve R400 Centre Speaker Walnut
Free delivery
Polk Reserve Series R400 Centre Channel Speaker (Each) Brown Walnut
Free delivery
Polk Reserve R400 Centre Speaker Walnut
Free delivery between 18–26 June
Polk Audio Reserve R400 Center Speaker Brown R400brn
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Excellent center; soundstage paired with two r700s is amazing. Elated with the Polk Reserve series having upgraded from 11yr old Polk Monitor series ii speakers.
I have this with a pair of R600s. Crystal clear highs and provides for strong dialog clarity. The center speaker is the most important in a home theater system. Although it's a large center channel speaker and has a wide and deep cabinet it's not too tall compared to others.
Much better than E350; deep and clear center........
Made my home theater system way better way better.
I was looking for center channel speaker to improve the loudness and quality of dialogue. I shopped these and equivalent from Martin Logan, Bowers and Wilkins and KEF at price points much higher than Polk. The clarity of dialogue, very clear and distinct. Sound Stage is very broad with a variety of sitting positions available and no loss of sound quality - some of the more expensive equivalents had a very precise sweet spot or sound stage, I found that objectionable considering their price. I have the black finish, which looks similar to a grey slate monolith - gorgeous. Speaker grills are magnetic, and I'm torn between leaving the grills on or off - they are beautiful. It's the perfect match for the movie genre I watch most. I have better sound vs. the competition ... MoreI was looking for center channel speaker to improve the loudness and quality of dialogue. I shopped these and equivalent from Martin Logan, Bowers and Wilkins and KEF at price points much higher than Polk. The clarity of dialogue, very clear and distinct. Sound Stage is very broad with a variety of sitting positions available and no loss of sound quality - some of the more expensive equivalents had a very precise sweet spot or sound stage, I found that objectionable considering their price. I have the black finish, which looks similar to a grey slate monolith - gorgeous. Speaker grills are magnetic, and I'm torn between leaving the grills on or off - they are beautiful. It's the perfect match for the movie genre I watch most. I have better sound vs. the competition and spent less. Can't beat that...
Running as the center to a full Reserve theater. Currently in 5.1 but soon to be 7.2.4 driven by a SR8015. Very well balanced with plenty of head room to spare.
After reading a number of reviews, I purchased the R400 to replace a Polk CSiA4 center which i felt was a bit underpowered with RTiA7 towers. Well the proof is in the pudding and this unit certainly rocks everything loud and clear and blends in well with the floorstanders. Plenty of power and presence. Size-wise, this is a BIG center speaker in all directions and needs plenty of room, but once you hear this, you will happy you went there. Still running it in, can't wait to hear it once it has loosened up. Highly reccommended.
I have been a Polk fan for as long as I can remember. This R400 was an upgrade for my coveted Polk CS20 center channel speaker. There is absolutely nothing wrong with the CS20, I just wanted to upgrade and see if Polk could improve upon a sound that was still excellent after many years. Polk managed to do it. Starting from just the unboxing experience it was like no other. The box is top quality and looked sleek, overpacked to the perfect degree, down to the speaker that was wrapped in a black cloth bag, sealed at the bottom with a heart sticker. The design is aesthetically pleasing, and cabinet feel study and well designed. Magnetic grill is a lovely touch with the perfect amount of gripping force. The woofers and tweeter are works of art. These things are all easy ... MoreI have been a Polk fan for as long as I can remember. This R400 was an upgrade for my coveted Polk CS20 center channel speaker. There is absolutely nothing wrong with the CS20, I just wanted to upgrade and see if Polk could improve upon a sound that was still excellent after many years. Polk managed to do it. Starting from just the unboxing experience it was like no other. The box is top quality and looked sleek, overpacked to the perfect degree, down to the speaker that was wrapped in a black cloth bag, sealed at the bottom with a heart sticker. The design is aesthetically pleasing, and cabinet feel study and well designed. Magnetic grill is a lovely touch with the perfect amount of gripping force. The woofers and tweeter are works of art. These things are all easy to improve on, but how about the sound? The timbre matching was perfect with the CS20. Ran a few tests, and the tone of the R400 sounded identical to the CS20. It operates well on my old Onkyo TX-NR787 and sounds louder and with more presence than the CS20 (which is shocking). The speaker sizes and arrangement are close to the same as the CS20, although the tweeter was higher in the cabinet which seems to make a difference. The cabinet is significantly larger but it still fits in my center space. Again, it just sets the center stage with more confidence and sound, the final welcome improvement to the theater system. I recommend the Reserve series if you are looking for a premium line that is still fairly reasonable on pricing.
Excellent center; soundstage paired with two r700s is amazing. Elated with the Polk Reserve series having upgraded from 11yr old Polk Monitor series ii speakers.
I playing a song in an old CS1, and then played it after swapping it with this. Of course the price differene is massive, along with a large age difference so this is apples to oranges, but my spouse who isn't much into caring about these things was shocked how much better it is.
| Overall Frequency Response | 36Hz - 50kHz |
