Polk Audio Reserve R400 Centre Speaker
SKU: 3754669633

Polk Audio Reserve R400 Centre Speaker

Sale price$494.55 Regular price$549.50
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Ships within 48 hours · Estimated delivery Jul 6 - Jul 11

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Description

Polk Audio Reserve R400 Centre SpeakerThe R400 offers unrivalled power and clarity from a centre channel speaker. The addition of two 6. 5 turbine cone woofers and Polks unique X Port technology means it delivers enormous yet balanced sound, ideal for the ultimate home theatre system. Key Benefits Patent pending X Port Unrivalled power and clarity Blends into any dcor Sleek and elegant design Power And Clarity As we get older, we learn what better looks like, feels like, tastes like, and

The R400 offers unrivalled power and clarity from a centre 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 theatre system.

Key Benefits

  • Patent pending X-Port
  • Unrivalled power and clarity
  • Blends into any décor
  • Sleek and elegant design

 

Power And Clarity

As we get older, we learn what better looks like, feels like, tastes like, and even drives like. Inheriting best-in-class technologies from our flagship Legend series of loudspeakers, the Polk Reserve series helps teach you what better sounds like.

Crystal Clear Vocals For Home Theatre

The centre channel is the most important speaker in any home theatre setup. The Reserve R400 uses Polk’s latest flagship transducer array to deliver clear, crisp, intelligible dialogue no matter where you sit.

Pinnacle Ring Radiator Tweeter

The Pinnacle Ring Radiator Tweeter’s distinctive pointed shape guides the dispersion of high frequency sounds around a room. This innovation widens the sweet spot and allows you freedom to enjoy your music and movies wherever you choose to 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.

Exceptional Cabinetry

Reserve’s sleek cabinetry hides a world of audio innovation. Cabinets are carefully cross-braced to best eliminate unwanted interior resonances. Rounded exterior corners help disperse sound broadly around the room with minimal diffraction, creating an open sound stage.

Hi-Res Audio Certified

The Reserve Series sets the benchmark for music and movie audio excellence.

 

Specifications

TRANSDUCER

Tweeter 1" Pinnacle Ring Radiator
Mid-range/Mid-bass -
Woofers Two 6 ½” Turbine Cone
Overall Frequency Response 36Hz - 50kHz
Frequency Response (-3dB limits) 48Hz - 39kHz
Recommended Amplifier Power 20 - 200W
Amplifier Output Compatibility 8Ω / 6Ω / 4Ω
Minimum Impedance (ohms) 4.1Ω
Sensitivity (2.83V/1m) 89dB


CROSSOVER

Tweeter/Mid-range Crossover Frequency 2500
Mid-range/Mid-bass Crossover Frequency -


MEASUREMENTS

Product Dims W x H x D (Includes width of feet) 615 x 196.6 x 350mm
Product Weights (each) 14.9 kg
Shipping Weight 17.9 kg


CABINETRY

New CRC (Mid-Range Enclosure Type) -
Mid-Bass / Woofer Enclosure Type Dual Rear X-Ports
Available Finishes Black / Walnut
Feet Rubber pads
Wall-Mountable (keyhole slots) No
Binding Posts: Nickel-plated 5-Way Single



Certifications (Non-Safety and Regulatory)

Hi-Res Certified Yes
IMAX Certified Yes
Shipping Dims (WxHxD) 740 x 483 x 293mm
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 3754669633

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Ms Rene Butts
West Palm Beach, US
★★★★★ 5
Nice colors
Color: Yellow
This was a perfect choice for my iPad. The color is very vibrant easy to put on and its sturdy will buy again in another color.
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Reviewed in the United States on May 17, 2026
B
Verified Purchase
Bernie
Natrona Heights, US
★★★★★ 5
Keyboard is magnetic to cover so it doesn’t fall out
Color: Pink
Absolutely love this ! My iPad fits perfectly in this and the keyboard is touch sensitive which I like and the color combo on the keyboard makes it fun ! Definitely will recommend this
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Reviewed in the United States on June 11, 2026
K
Verified Purchase
Kat
Houston, US
★★★★★ 5
Great quality case and keyboard
Color: Purple, Color: Purple
Super good quality case, I was actually surprised since it’s such a good price. It fit my 10.9 inch perfectly! Keyboard has magnetic attachment to the case which is super handy, and it connected with Bluetooth seamlessly. Keyboard isn’t silent, it’s on the louder side, but not too loud at all and it doesn’t bother me at all because I prefer clickier keyboards. Oh also something that’s really cool is that you can change the colors of the keyboard, love that!
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Reviewed in the United States on April 10, 2026
U
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User123456
Port Orchard, US
★★★★★ 5
Amazing!
Color: Midnight Green
The Hamile Keyboard Case for iPad (11th & 10th Generation) is a practical accessory for turning your iPad into a more laptop-like setup. Designed with a detachable wireless keyboard and protective case, it’s aimed at students, professionals, and anyone who types frequently on their tablet. One of its most appealing features is the 7-color backlit keyboard, which makes typing easier in low-light environments while also adding a customizable, stylish look. The backlighting can usually be adjusted in brightness and color, making it both functional and fun to use. The keys are generally responsive and comfortable enough for everyday typing tasks like emails, notes, and document work. The case itself provides decent protection for the iPad, helping guard against scratches and minor bumps. It also holds the tablet at a stable viewing angle, which is useful for video calls, studying, or streaming. The wireless connection is typically simple to set up via Bluetooth, and the keyboard can be detached when not needed.
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Reviewed in the United States on May 21, 2026
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Ari Love
Chelsea, US
★★★★★ 5
No need to tap my Nails on the screen anymore!
Color: Pink, Color: Pink
Cute, convenient, and definitely needed! I use it every day to carry my emotional support device The keyboard case is sturdy, easy to use, and makes it so much more convenient to take my my girl everywhere. Extra added protection! (I’m clumsy and my iPad has fell quite a few times!) the keyboard works great, I typed a lot of emails and docs! Very happy with this purchase!
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Reviewed in the United States on June 5, 2026

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