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Polk Audio Signature S50 Floor-standing speaker (Washed Black Walnut)

Item # 107SIGS50

Polk's Signature S50 floor-standing speaker delivers big sound without breaking the bank.

Polk's Signature S50 floor-standing speaker delivers big sound without breaking the bank.

Item # 107SIGS50

About the Polk Audio Signature S50

Deia Z.

Dynamic, room-filling sound

Polk's Signature S50 floor-standing speaker delivers big sound without breaking the bank. As front speakers in a home theatre setup, or as stereo speakers for high-resolution music, a pair of these towers will give you a real bang for your buck, serving up clean, detailed sound. And their sleek, stylish look makes them a choice addition to your living room décor.

Dynamic, room-filling sound

Polk's Signature S50 floor-standing speaker delivers big sound without breaking the bank. As front speakers in a home theatre setup, or as stereo speakers for high-resolution music, a pair of these towers will give you a real bang for your buck, serving up clean, detailed sound. And their sleek, stylish look makes them a choice addition to your living room décor.

Polk Signature S50 floor-standing speaker

Built for smooth sound

The S50 is made with high-quality materials for natural, low-distortion sound. Its cabinet houses a 1" high-resolution Terylene dome tweeter for clear, detailed highs and realistic reproduction of instruments and vocals. Two highly efficient 5-1/4" Dynamic Balance® woofers are made of lightweight yet durable mica-reinforced polypropylene. Non-resonant MDF (Medium Density Fiberboard) construction and an anti-diffraction magnetic grille provide an acoustically inert structure for reduced sonic interference. Polk's exclusive Power Port technology adds bass impact.

Build a complete Signature system

Add more Polk Signature speakers for seamless surround sound.

Bookshelf speakers: Polk Signature S10, Polk Signature S15, and Polk Signature S20
Centre channel: Polk Signature S30 or Polk Signature S35

Round out the low end with a Polk powered subwoofer.

Got wire?

Most speakers don't include any. Read our article about choosing and installing speaker wire.
Shop our selection of speaker wire.

READ LESS

Product highlights:

  • frequency response: 33-40,000 Hz
  • sensitivity: 89 dB
  • 8-ohm impedance
  • handles up to 150 watts
  • 1" Terylene high-res dome tweeter
  • dual 5-1/4" mica-reinforced polypropylene Dynamic Balance® cone drivers
  • Power Port® technology for better bass response
  • non-resonant MDF cabinet
  • dual 5-way gold-plated binding posts
  • anti-diffraction magnetic grilles for minimal sonic interference
  • includes stabilizing feet
  • 7-1/2"W x 37-7/16"H x 11-1/16"D (10-5/16"W with feet)
  • weight: 32 lbs.
  • warranty: 5 years
  • MFR # AM9530-A

What's in the box:

  • Floorstanding loudspeaker
  • Grille (attached)
  • 4 Feet (pre-installed)
  • Owner's Manual
  • Online Product Registration

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Customer reviews for Polk Audio Signature S50

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5.0 out of 5 stars
88 reviews

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More details on the Polk Audio Signature S50

Stacey B.

Features & specs

General
Enclosure Bass Reflex
Finish Meddite MDF
Color Black
Tweeter Soft-Dome
Tweeter Size (inches) 1
Midrange Size (inches) N/A
Woofer Size (inches) 5.25
Woofer Composition Mica-reinforced polypropylene
Woofer Surround Butyl rubber
Built-in Powered Sub No
Dolby Atmos Drivers No
Connector Type 5-Way post
Bi-amp Inputs Yes
Parts Warranty 5 Years
Labor Warranty 5 Years
Specifications
Power Range 20-150
Frequency Response 33-40k Hz
Sensitivity 89 dB
Impedance (Ohms) 8
Subwoofer Amp Power ---
Height (inches) 37-7/16
Width (inches) 10-5/16
Depth (inches) 11-1/16
Weight 32 lbs

Product Research

Features

Dynamic Balance Drivers: 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. Using just the right materials enables Polk to eliminate issues that reduce speaker performance and tune out performance-robbing resonances before they occur. Dynamic Balance ensures a rich, clean, full-range sound no matter what you're listening to. The Polk Signature S50 floor-standing loudspeaker incorporates a Dynamic Balance two-way driver array with one 1" tweeter and two 5.25" woofers.

  • Hi-Res 1" Terylene Tweeter: The Signature S50 floor-standing loudspeaker utilizes Polk's newly designed 1" Terylene tweeter to deliver clear and detailed high-end response for realistic reproduction of vocals and instruments. It will support high frequencies up to 40kHz to perfectly reproduce the latest high-resolution audio files with improved audio extension, earning Hi-Res Audio Certification.
  • Dual 5.25" Mica-Reinforced Polypropylene Woofers: The Signature S50 floor-standing speaker employs two 5.25" Dynamic Balance low distortion mica-reinforced polypropylene cone woofers for clean, clear bass, better linearity, and increased dynamic midrange and midbass. This mica-reinforced polypropylene woofers feature butyl rubber surrounds, massive ceramic motor structures, and high-temperature Conex fiber spiders that combine to create drivers of exceptionally high efficiency, for clean, clear bass, better linearity, lower distortion, and greater durability.

Power Port Technology: The Signature S50 floor-standing incorporates Polk's Power Port technology with a specially designed down-firing port. Power Port technology smoothly transition air flow from inside the speaker into your listening area for deep, extended bass impact while minimizing turbulence and distortion. Polk's patented Power Port technology delivers 3dB more bass response than a traditional ported speaker. Because the port is located on the bottom of the floor-standing speaker, its not necessary to position to the loudspeaker a certain amount of feet from wall - giving you greater placement flexibility.

Non-Resonant Enclosure: The floor-standing speaker's strong, rigid and acoustically inert enclosure reduces unwanted internal standing waves for less audible coloration. And non-resonant Meddite MDF construction, extra bracing, and a thick front baffle ensure a more lifelike sound. The enclosure's curved edges not only look cool, they reduce standing waves inside the cabinet for less audible coloration. The enclosure features a beautiful black washed walnut finish.

Anti-Diffraction Magnetic Grille: The Signature S50 includes an anti-diffraction magnetic grille for unaltered sound. The integrated magnets make it easy to attach and remove the grille from the floor-standing speaker.

Two-Way Crossover: The floor-standing speaker employs a high-performance two-way crossover array (2.5kHz) for seamless blending and optimum time alignment of the tweeter & woofers, creating a lifelike soundstage.

Dual 5-Way Binding Posts: The floor-standing loudspeaker has two sets of 5-way binding posts connected by jumpers. Using the dual 5-way binding posts, you can bi-amp or bi-wire the speakers. The 5-way binding posts will accept bare wire (up to 10AWG), pin-connectors, spade-connectors, and banana plugs (single or dual). The speaker terminals are color coded for easy identification between positive (red) and negative (black).

Dual-Floor Compatible Feet: Customized for improved stability and bass coupling to the floor, the floor-standing loudspeaker's feet are designed for both carpet and hard floors. The feet come pre-installed and should not be removed.

Applications & Placement: The Signature S50 floor-standing speakers can be used as front and/or surround speakers in a home theater setup. They can also be used in a simple stereo application. If your AV receiver offers built-in bass management, the S50 should be set to "Large" for an unfiltered, full-range audio signal.

  • Placement for Front Speakers: As a pair of front speakers in a home theater or stereo setup, create an equilateral triangle between the speakers and the listening position - with the speakers placed as far apart from one another as the listeners are sitting from them.
  • Placement for Surround Speakers: As surround speakers, the S50 should be placed on a side wall slightly behind the listening position. If you cannot place the speakers on the side walls, position them on the rear wall just behind the listening area.

Signature Series: Polk designed its Signature Series of loudspeakers to bring a big surround sound and a live music experience into the comfort of your living room at an affordable price. Featuring Hi-Res certification with a new high-resolution Terylene tweeter, redesigned Dynamic Balance drivers, precision crossovers, an anti-diffraction magnetic grille, modern cabinet styling and exclusive Power Port bass enhancing technology, Polk's Signature series loudspeakers deliver crystal clear highs, detailed midrange, and deep bass; plus they look great in almost any decor. The Signature Series by Polk consists of two center-channel speakers, three bookshelf loudspeakers, and three tower speakers.

Note: You may also want to add one of Polk Audio's powered subwoofers (sold separately) for even more bass response.

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Customer Q&A

4 questions already asked

Q
Recommendations. Amp is Yamaha WXA-50. My use case is a Bedroom/Bath system. I am torn between the Polk Audio Signature S50 & Polk Audio Signature S55. Both have similar Freq response. The main difference I see is the drivers. 5.25" Vs. 6.5". I feel the 6.5" for be better long term and better low end response?
homer  Oct 23, 2021
2 answers
A
Either will work well. I chose S50's to go with my bedroom Yamaha S501 amp and a Denon Professional DN-300Z (all 7 different digital music sources in 1u of space) for my 11'x13' bedroom and found it had stunning power and way more usable depth than the specs indicate (room size matters too: S50's couple perfectly with my room size with no standing waves). I got these because I had only 8" between a very large heavy dresser and the door swing, and these were all that cleared the door. This all said, larger cones will move more air but I think the difference in small to medium spaces like mine would be negligible (and in either case, if you want the lowest audible 6-8 Hz you can later get a Definitive Technologies Cube like I eventually did-it will give you even more depth than S60's would). All this said, keep ANY conventional audio gear away from moisture and high humidity. RN
richard  Oct 23, 2021
A
I'm no expert, but I'd say you are on the right track if you are not wanting to add any subs. I use a 10" and a 12" sub with my setup and love it. Having subs lets the speakers do the other work, mids and highs, more efficiently, which makes for better sound. But again, without subs, yes....I'd go for the larger drivers in the S55.
alfonso  Oct 23, 2021
Q
Is this a pair or do you have to order 2 for a pair?
jaie  Dec 12, 2020
6 answers
A
YOU HAVE TO ORDER TWO THERE ARE GREAT SPEAKERS
john  Dec 16, 2020
A
It's 229.00 per speaker. That's a good price - was $289/speaker when I bought mine.
matthew  Dec 15, 2020
A
You have to order two.
richard  Dec 15, 2020
A
This is a single speaker. I ordered two to use as my front speakers. They sound great and are an excellent value.
thomas  Dec 15, 2020
A
They were about 250 each... had to order 2 to get a pair
anthony  Dec 15, 2020
A
They come as one each, so you need to order Qty 2. Hope that helps.
chris  Dec 15, 2020
Q
In order to utilize this speaker do you need an audio receiver that is rated for 30 to 40K HZ?
samuel  Sep 27, 2020
7 answers
A
These speakers can be used on receivers that are rated for less frequencies than this speaker can produce. They will work with the frequencies they do get
jason  Oct 19, 2020 (Staff)
A
I have no idea why you would need those specs. The normal 20HZ-20,000HZ into at least 50 watts a side should be fine for most rooms, as these speakers go to about 90 dB at only one watt. You do want to go down to 20HZ on your electronics if possible (you may not be able to get there if you're using a Harmon Kardon Bluetooth unit to give you Bluetooth as those only go down to 30HZ, but I can attest to these speakers going WAY lower than they are rated at 33HZ in a 158 square foot room, so no subwoofer is needed (and a lot of modern music goes down very low so you will want to be able to get down deep).
richard  Oct 16, 2020
A
These speakers don't seem to produce that low of a frequency. Added a subwoofer to get the low bass.
jeffrey  Oct 15, 2020
A
Not sure this helps, but my speakers are attached to a Denon AVR-S640H
chris  Oct 15, 2020
A
Good question. If you don't have a "top end" receiver, these speakers will still sound great. They reproduce the signal they receive. Of course, the better the signal, the better the sound. Overall, if you are on a budget and want to gradually upgrade your system (speakers, receiver, etc.), then you can't go wrong with these. They will give you a full range sound over a decent sound stage. I've paired mine with a new Denon receiver (also from Crutchfield) and was saving up for a subwoofer. BUT, considering my house is small and the power ports are directed to the floor, I don't need a sub with these (!!!).
matthew  Oct 15, 2020
A
I always work with an advisor on any of my system purchases. They will pair your speakers to the proper receiver. I added some Klipsch in ceiling speakers and Polk center channel and Klipsch bass. They paired me perfectly with a Denon AR with bluetooth that Im very happy with. I recently bought some out door speakers and bluetooth AR receiver and my advisor made sure everything paired correctly....again happy I used the advisor
jeff  Oct 15, 2020
A
Don't believe so
paul  Oct 15, 2020
Q
I'm not to sure what bi wireing is but, I've seen a lot of people say they have there s50's bi wired. What does it do exactly? And I also have a pair of jbl's with dual 10s and they also have four terminal's , so my question is what does bi wireing do and how do you do it
kody1  Mar 24, 2018
4 answers
A
Basically you are delivering twice the power to your speaker. It's easy to do. Just run 2 wires from the receiver output and connect one to each terminal. You will get a much fuller sound from your speaker
william  Apr 04, 2018
A
Separating the amplified power source to high/midrange from the woofers. It theoretically should produce better sounds with less distortion. To do it, you need to remove the copper bridge connecting two binding posts, connected each of the binding post set directly to the applied power source. Personally I think it's an overkill for these speakers due to the driver size.
kuo  Apr 04, 2018
A
When you bi=wire your speakers you are sending your signal to the woofer and the tweeter separately. Polk tells you how to do it in the speaker manual. Essentially, you pull the chrome jumper that connects the two speaker terminals for each speaker in the box. At your amplifier or receiver, or whatever, take a speaker cable and twist the ends together on one end and connect that to the positive terminal. At the other end (SPEAKER END) connect one wire to the upper terminal and one to the lower terminal. Do the same for the negative terminal (black terminal), Effectively, it bypasses a lot of circuitry in the speaker by doing this and it made a tremendous difference in my S50;s. They a;ready sounded good, but once I bi wired them they became much more refined and definitive sounding. Hope this helped.
allan  Apr 04, 2018
A
Crutchfield has a great article about it - https://www.crutchfield.com/learn/why-biamp-your-speakers.html. Hope this helps!
michael  Apr 04, 2018

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