Skip disability assistance statement.

Welcome to our website! As we have the ability to list over one million items on our website (our selection changes all of the time), it is not feasible for a company our size to record and playback the descriptions on every item on our website. However, if you have a disability we are here to help you. Please call our disability services phone line at 630-879-1286 during regular business hours and one of our kind and friendly personal shoppers will help you navigate through our website, help conduct advanced searches, help you choose the item you are looking for with the specifications you are seeking, read you the specifications of any item and consult with you about the products themselves. There is no charge for the help of this personal shopper for anyone with a disability. Finally, your personal shopper will explain our Privacy Policy and Terms of Service, and help you place an order if you so desire.

The New Bookshelf for Serious Listening in Midnight Mahogany


Available in 4 Color(s)


  • Dynamic Balance
  • 3-Way Driver System
  • PowerPort Bass Venting

See More


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, & low distortion.

3-Way Driver System The Polk Audio LSiM series bookshelf loudspeaker employs a 3-way driver system for crisp, detailed highs; natural, lifelike midrange; and accurate, dynamic midbass.

PowerPort Bass Venting To eliminate bass-stealing turbulence at the mouth of the port, Polk Audio engineers designed the PowerPort. It's unique shape promotes "laminar" airflow even in short tube ports by mimicking the properties of longer, flared port openings. No turbulence means no wasted power, which means more efficient bass response.


  • Dynamic Balance
  • 3-Way Driver System
  • PowerPort Bass Venting
Total Pieces 1
Cabinet Warranty 5 years
Drivers Warranty 5 years
Original Purchaser Only Yes
Shipping Cartons
Carton 1 32.5 lbs (14.74 kg)
---Bookshelf Speaker---
Qty Included 1
Availability US
Height 16.75" (42.55 cm)
Width 8.81" (22.38 cm)
Depth 14.56" (36.98 cm)
Weight 29.6 lbs (13.43 kg)
Driver Enclosure Type Sealed
Driver Complement
  • (1) 6.5" (16.51 cm) d (Round) Super Cell Aerated Polypropylene - Mid/Woofer
  • (1) 3.25" (8.26 cm) d (Round) Super Cell Aerated Polypropylene - Midrange
  • (1) 1" (2.54 cm) d (Round) Enhanced Ring Radiator - Tweeter
Enclosure Type Mid-High Array Enclosure Type: Sealed
Enclosure Type Midwoofer Enclosure Type: PowerPort bass venting
Audio Quality
Total Frequency Response 36 Hz → 40,000 Hz
Nominal Impedance 8 ohms
Lower and Upper -3dB Limits 50 Hz → 30,000 Hz
Type Orth Crossover Design
Tweeter/Midrange Crossover Frequency 2800 Hz
External Amplifier
Recommended Amplifier Power Per Channel 20 watts → 200 watts

Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

Extended warranties are usually very inexpensive and can save you thousands in the future. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Electronics can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new electronics should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.