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Polk Audio LSiM Series 47" Tall Floor Standing Speaker

Model #: LSiM705

At a Glance

Polk Audio LSiM Series 47" Tall Floor Standing Speaker with Dynamic Balance® and Orth crossovers

WarningProposition 65 Warning for California Residents
Polk Audio LSiM Series 47" Tall Floor Standing Speaker

Connections

Connector TypeDual 5-way binding posts

Other

Crossover Type300 Hz
Sold AsEach

Construction

Enclosure TypePowerPort bass venting and ARC port
Tweeter CompositionSilk Radiating
Midrange Size3.25
Bass CompositionPolymer Cone
Midrange CompositionPolypropylene Polymer
Woofer Composition Polypropylene Cone
Bass Size5.25

Misc. Specs

Product Weight (lbs.)78
Manufacturer Warranty5 Year Parts & Labor
RMS Power Handling (Watts)250
ColorDark Red/Red
Impedance8 ohms
Maximum Power Handling (Watts)250
Depth (in.)16.25
Height (in.)47
Width (in.)8.31
Woofer Size5" x 7"

Polk Audio LSiM Series 47" Tall Floor Standing Speaker

Model #: LSiM705
Call for Best Price

At a Glance

Polk Audio LSiM Series 47" Tall Floor Standing Speaker with Dynamic Balance® and Orth crossovers

Get to know this product.

The LSiM705 fills your world with its wide, dynamic soundstage and its capability to effortlessly achieve truly staggering volume levels. The LSiM705 features the same component complement as the larger LSiM707 loudspeaker, on a slightly smaller scale. It includes a 5 1/4-inch mid-woofer of lightweight super cell aerated polypropylene for smooth blending with its dual 5x7-inch Cassini oval subwoofer radiators enhanced by Polk’s patented PowerPort® bass venting. Its 1-inch ring radiator tweeter, a feature usually found only in exotic speakers, reveals pinpoint details for realistic imaging. Use the LSiM705 in midsized rooms where you want the full-on impact of the legendary Polk sound.  

Polk’s Exclusive Dynamic Sonic Engine 

    Design optimizes the midrange driver and the ring radiator tweeter in separate interior chambers for improved transient response, superior imaging and greater horizontal off-axis response.

Enhanced, Re-Engineered Ring Radiator Tweeters 

    Extend top-end response for incredible details and realistic imaging.

Newly Designed Cassini Oval Subwoofer Drivers 

    With more surface area than round drivers, dramatically improve low-frequency response for deep, well-blended bass.

Our Innovative Overhung Voice Coil Design 

    Augments the excursion length for subwoofer drivers, increasing their power-handling capabilities and enhancing bass response.

Extended Linear Motion Voice Coil 

    Design allows lots of movement in a limited space, eliminating impedance and extending mid- and high-frequency response.

Lightweight, Rigid Cast Aluminum Baskets 

    Are designed for precision motor alignment with unobstructed linear movement and ample venting.

Klippel Motor 

    Optimization uses laser measurement technology to ensure a smooth excursion path at either end of the volume spectrum for uniform performance at both low and high volumes.

Polk’s Proprietary, Patented Dynamic Balance®

    Technology allows our engineers to design out distortion-causing driver and system resonances, so you only hear the good sounds.

Our Super Cell Aerated Polypropylene Cone 

    Is the ideal balance of lightweight stiffness (for more efficient action with less distortion-causing flex) and superior damping properties.

Durable, Computer-Modeled

    Injection-molded butyl rubber surrounds suppress unwanted cone resonances for a lifetime of reliable sound.

Exclusive, Patented 

    Orth crossovers increase lower-order power handling and smooth the impedance curve, for more efficiency and better high frequency response.

High Quality

    Heavy duty LSiM enclosure construction features 1.0" MDF on the sides, 3/4" MDF for the back and bottom and 1 1/4-inch baffles, with substantial internal bracing and separate interior cabinetry for each driver. These exceptionally robust materials efficiently eliminate cabinet resonances and standing waves for less distortion and more dynamic transparency.

Beautiful Furniture-Grade 

    Hardwood veneer cabinet finishes, with sleek trim accents and no visible screws.

Super-Thin 

    Zero-diffraction grilles lock in place magnetically, and never obscure your sound.

PowerPort Bass Venting Is Polk’s Patented Design

    For smoothly transitioning the air flow from the port into your listening area, eliminating turbulence and distortion, for bigger, more efficient, deep bass impact.

Useful Documents
Specifications

Connections

Connector Type:Dual 5-way binding posts

Construction

Enclosure Type:PowerPort bass venting and ARC port
Tweeter Composition:Silk Radiating
Midrange Size:3.25
Bass Composition:Polymer Cone
Midrange Composition:Polypropylene Polymer
Woofer Composition: Polypropylene Cone
Bass Size:5.25

Other

Crossover Type:300 Hz
Sold As:Each

Misc. Specs

Product Weight (lbs.)78
Manufacturer Warranty5 Year Parts & Labor
RMS Power Handling (Watts)250
ColorDark Red/Red
Impedance8 ohms
Maximum Power Handling (Watts)250
Depth (in.)16.25
Height (in.)47
Width (in.)8.31
Woofer Size5" x 7"
WarningProposition 65 Warning for California Residents