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Polk Audio LSi15

Floor-standing speakers (Cherry finish)

Item # 700LSI15C

Other details include two sets of gold-plated 5-way binding posts for biamping or biwiring, and adjustable spikes...

Other details include two sets of gold-plated 5-way binding posts for biamping or biwiring, and adjustable spikes...

Cole
Need help?
Contact our Virginia-based experts.
Discontinued item

Item # 700LSI15C

Cole
Need help?
Contact our Virginia-based experts.

About the Polk Audio LSi15

High-impact home theater thrills

Other details include two sets of gold-plated 5-way binding posts for biamping or biwiring, and adjustable spikes for carpeted or hardwood floors. And don't forget — with all that sonic richness and precision, a pair of LSi15s make formidable front left and right speakers in a home theater system, too.

High-impact home theater thrills

Let's start with critical appreciation: respected reviewer Anthony H. Cordesman writes, "The LSi15 has an extraordinary mix of treble and midrange performance for the price. The upper octaves are among the smoothest and most detailed at all levels of dynamics that I have heard; they certainly outperform most speakers costing more than twice as much" (The Absolute Sound, April/May 2002). We couldn't have said it better ourselves.

LSi Lifestyle

Crystal-clear highs and smooth mids

Exploded speaker

Polk's Ring Radiator tweeter produces crystal-clear highs.

A big part of the LSi15's audiophile-quality sound is the 1" Ring Radiator tweeter. This light, extremely responsive tweeter won't color your music — your highs sound as close as possible to the original. The LSi15 also offers two 5-1/4" aerated polypropylene Dynamic Balance® mid/bass drivers, along with Acoustic Resonance Control (ARC) technology — vocals and midrange have never sounded so real. The 8" Dynamic Balance woofer and Power Port venting deliver accurate, room-filling bass that goes all the way down to 32 Hz. And a superb cabinet design helps eliminate resonances, so your sound stays smooth and clear. Whether you're enjoying the intricate textures of jazz or chamber music, or the simple purity of a solitary vocalist, the LSi15 will astonish you.


Great for home theater or stereo music setups

Other details include two sets of gold-plated 5-way binding posts for biamping or biwiring, and adjustable spikes for carpeted or hardwood floors. And don't forget — with all that sonic richness and precision, a pair of LSi15s make formidable front left and right speakers in a home theater system, too.

Recommended center channel speaker: Polk LSiC.
Recommended surround speakers: LSi7, Polk LSi9, or LSiFX.

READ LESS

Product highlights:

  • video-shielded
  • bass-reflex design
  • frequency response 32-26,000 Hz (-3dB)
  • 4-ohm impedance; these speakers must be powered using high-current amplification
  • sensitivity 88 dB
  • handles up to 250 watts
  • real wood veneer
  • dual 5-way, gold-plated binding post terminals
  • 9-5/8"W x 44-1/8"H x 13-3/8"D (with pedestal)
  • warranty: 5 years
  • Our 60-day money-back guarantee
  • MFR # LSi15 Cherry Pair

What's in the box:

  • Two separate boxes (Left-channel box/Right-channel box):
  • The Left-channel box contains:
  • 1 Cherry left-channel floor-standing speaker with attached pedestal
  • 4 Carpet spikes with installed rubber feet
  • Owner's Manual
  • Product Registration Card
  • "Register Online" sheet
  • The Right-channel box contains:
  • 1 Cherry right-channel floor-standing speaker with attached pedestal
  • 4 Carpet spikes with installed rubber feet
  • Product Registration Card

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Crutchfield response

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More details on the Polk Audio LSi15

Stacey B.

Features & specs

General
Enclosure Bass Reflex
Finish Wood veneer
Color Cherry
Tweeter Ring Radiator
Tweeter Size (inches) 1
Midrange Size (inches) 5.25
Woofer Size (inches) 8
Woofer Composition Poly
Woofer Surround Rubber
Built-in Powered Sub No
Dolby Atmos Drivers
Connector Type 5-way post
Bi-amp Inputs Yes
Parts Warranty 5 Years
Labor Warranty 5 Years
Specifications
Power Range 20-250
Frequency Response 32-26k Hz
Sensitivity 88 dB
Impedance (Ohms) 4
Subwoofer Amp Power ---
Height (inches) ---
Width (inches) ---
Depth (inches) ---
Weight ---

Product Research

Features
Note

Features

Dynamic Balance: 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.

Subwoofers: Each speaker features a side-firing 8" poly cone woofer with a rubber surround for deep bass response. On the left-channel speaker, the subwoofer is located on the lower portion of the left panel. On the right-channel speaker, the subwoofer is located on the lower portion of the right panel.

Aerated Polypropylene Midranges: Each speaker uses two Aerated Polypropylene midrange cones for wide response and low distortion. For superior durability, the midranges use rubber surrounds.

1" Ring Radiator Tweeters: Each speaker features a 1" Ring Radiator tweeter for crisp, transparent highs. The ultra-light woven Ring Radiator Diaphragm delivers flat response, precise detail and overall accuracy. A High Frequency Waveguide prevents phase cancellations for smooth, uniform frequency response and wide dispersion. A Low Frequency Waveguide promotes laminar airflow between chambers to prevent air turbulence. This feature serves the same function as Power Port for Polk's bass systems.

Cast Aluminum Driver Baskets: Cast aluminum driver baskets resist flexing and "ringing" for ultra-tight bass and coloration-free midrange.

Cascade Tapered Crossovers: The Cascade Tapered Crossover array in each speaker ensures flat midrange response and improves imaging focus, and depth. One midrange driver is crossed over much lower in frequency and is in essence a bass-only driver. Only one midrange driver plays the upper midrange frequency range thereby eliminating the interference effects between the two midrange drivers. This gives you the dynamic impact of double drivers with the accuracy and life-like imaging of a single driver system.

Power Port Venting System: Each speaker has a floor-coupled Power Port venting system built into its pedestal for precise deep bass response. This venting system allows air velocity to slow gradually, vastly reducing air turbulence, and delivering greater bass efficiency than conventional ports.

Acoustic Resonance Control (ARC): Internal cabinet resonance can impart a "thick" character to voices. Polk's patented Acoustic Resonance Control port system overcomes this problem. In addition to the Power Port venting system, each speaker has two front-firing ports that are tuned to suppress the internal cabinet resonance, resulting in smooth, natural midrange reproduction.

Low-diffraction Grilles: Each speaker employs open architecture low-diffraction grilles for spacious imaging.

Dual 5-Way Binding Posts: Each speaker has two sets of gold-plated 5-way binding posts connected by gold-plated jumpers. Using the dual 5-way binding posts, you can bi-amp or bi-wire the speaker.

Carpet Spikes: When the spikes, along with the rubber feet, are installed, the speaker height increases to 45.225". With the spikes installed and the rubber feet removed, the speaker height is 45.083".

Note

Frequency Response Note: The overall frequency response is 22Hz-27kHz and the -3dB frequency response is 32-26kHz.

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