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Discontinued Product

Polk Audio Black High Definition Bookshelf Speakers - LSI9B

Abt Model: LSI9BK | UPC Code: 747192117566
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Product Details

Polk Audio Black High Definition Bookshelf Speakers, Model LSI9BK


  • Superior musical accuracy, serious theatrical impact
  • Designed for high definition formats such as SACD and DVD-Audio
  • Mirror imaged pairs for tightly focused highs and true three-dimensional imaging with minimized room reflections: Hear what you've been missing!
  • (2) 5 1/4" Dynamic Balance drivers with Aerated Polypropylene cones for wide response and low distortion
  • Cascade Tapered Crossover array ensures flat miband response and improves imaging focus, and depth
  • Cast aluminum driver baskets resist flexing and "ringing" for ultra-tight bass and coloration-free midrange
  • Ultra high performance Ring Radiator tweeters, rare in speakers at this price, for extended frequency response, low distortion, excellent dynamics, and superior detail and transparency
  • Side panels are 1-1/2" thick for a totally inert enclosure - you hear all the music and only the music
  • Precise deep bass response provided by a rear-firing PowerPort® venting system built into the speaker's back plate
  • Smooth, natural midrange reproduction thanks to patented Acoustic Resonance Control technology
  • Magnetically shielded for safe placement near video monitors
  • Premium crossover components with advanced transducers for consistent high-end sound quality
  • Mylar bypass capacitor in the high-pass crossover extends and flattens high frequency response. Hear musical details you've never heard before!
  • Open architecture low diffraction grille for spacious imaging
  • Dual (bi-ampable) gold plated 5-way binding post inputs for the most secure wire connections and the most versatile wiring applications


Driver Complement

  • Mid/Woofer
    • 2 - 5-1/4" Diameter (13.34cm)
    • Dynamic Balance with Aerated Polyprpylene cone, cast basket and rubber surround (shielded)
  • Tweeter
    • 1 - 1" Diameter (2.54cm)
    • Dynamic Balance Ring Radiator (shielded)


  • Overall Frequency Response: 38Hz - 27kHz
  • Lower -3dB Limit: 50Hz
  • Upper -3dB Limit: 26kHz
  • Nominal Impedance: 4 ohms
  • Recommended Amplifier Power: 20 - 200 w/channel
  • Efficiency: 88 dB
  • Crossover
    • Driver 1: LPF at 200Hz 12dB/oct,
    • Driver 2: LPF at 2.4kHz, 12 dB/oct.
    • Tweeter: HPF at 2.4kHz 18dB/oct.
  • Inputs: Dual gold plated 5-way binding posts for bi-amp/bi-wire hookup

Approximate Dimensions:

  • Height: 14-7/8"
  • Width: 8-5/8"
  • Depth: 15-1/4"

Approximate Weight:

  • Shipping: 60 lbs

Warranty Information:

  • Manufacturers Warranty (authorized online retailer): 5 years parts and labor
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Key Features
Dual 5-1/4 " Dynamic Balance Drivers With Aerated Polypropylene Cones/ Cascade Tapered Crossover Array/ Cast Aluminum Driver Baskets/ Ultra High Performance Ring Radiator Tweeters/ Magnetically Shielded/ Mylar Bypass Capacitor/ Open Architecture Low Diffraction Grille/ Dual (Bi-Ampable) Gold Plated 5-Way Binding Post Inputs/ Black Finish/ Price Per Pair
More reasons to buy the Polk Audio LSI9B from Abt Electronics
  • is an authorized dealer (Learn More).
  • The Polk Audio LSI9B is Brand New.
  • The Polk Audio LSI9B Ships in a Factory Sealed Box.
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