Polk Audio Signature S20 Bookshelf Speakers (Washed Black Walnut)

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 S20 bookshelf loudspeaker incorporates a Dynamic Balance two-way driver array with one 1" tweeter and one 6.5" woofer.

Hi-Res 1" Terylene Tweeter:
  • The Signature S20 bookshelf 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.

6.5" Mica-Reinforced Polypropylene Woofer:
  • The Signature S20 bookshelf speaker employs one 6.5" Dynamic Balance low distortion mica-reinforced polypropylene cone woofer for clean, clear bass, better linearity, and increased dynamic midrange and midbass.
  • This mica-reinforced polypropylene woofer features a butyl rubber surround, massive ceramic motor structure, and a high-temperature Conex fiber spider that combine to create a driver of exceptionally high efficiency, for clean, clear bass, better linearity, lower distortion, and greater durability.

Power Port Technology:
  • The Signature S20 bookshelf incorporates Polk's Power Port technology with a specially designed rear-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.

Non-Resonant Enclosure:
  • The bookshelf 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 S20 includes an anti-diffraction magnetic grille for unaltered sound.
  • The integrated magnets make it easy to attach and remove the grille from the bookshelf speaker.

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

5-Way Binding Posts:
  • The bookshelf loudspeaker features 5-way binding posts for a secure connection to your speaker wire.
  • 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).

Applications & Placement:
  • The Signature S20 bookshelf 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 S20 should be set to "Small" to filter out low bass frequencies.

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 S20 should be placed on a side wall slightly behind and above the listening position.
  • If you cannot place the speakers on the side walls, position them on the rear wall above the listening area.

Mounting Options:
  • The S20 bookshelf loudspeakers come with self-adhesive rubber feet so they will sit safely and securely on your speaker stands or shelf.
  • The included rubber feet add approximately 0.125" to the height of the speaker.
  • The bookshelf speaker does not include any type of provisions for wall-mounting.

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.
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