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Polk Audio LSiM Series 50.8" Tall Floor Standing Speaker

Model #: LSiM707

At a Glance

Polk Audio LSiM Series 50.8" Tall Floor Standing Speaker with Dynamic Balance® and Orth crossovers

WarningProposition 65 Warning for California Residents
Polk Audio LSiM Series 50.8" 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 Size6.5
Midrange CompositionPolypropylene Polymer
Woofer Composition Polypropylene Cone

Misc. Specs

Product Weight (lbs.)99.2
ColorDark Red/Red
Depth (in.)15.75
Width (in.)8.44
Height (in.)40.25
Impedance8 ohms
Woofer Size6" x 9"
RMS Power Handling (Watts)300
Manufacturer Warranty5 Year Parts & Labor
Maximum Power Handling (Watts)300

Polk Audio LSiM Series 50.8" Tall Floor Standing Speaker

Model #: LSiM707
Call for Best Price

At a Glance

Polk Audio LSiM Series 50.8" Tall Floor Standing Speaker with Dynamic Balance® and Orth crossovers

Get to know this product.

The ultimate statement of Polk's mission, the LSiM707 is like no other loudspeaker in its price range. Featuring exclusive state-of-the-art technologies, proprietary patents, and designed in-house from the ground up, this is pure high performance audio of a completely different stripe. Experience realistic, transparent midrange reproduction with a 3 1/4-inch midrange driver of lightweight super cell aerated polypropylene. Pinpoint detail is revealed by a 1-inch ring radiator tweeter, a feature usually found on speakers costing much more. The LSiM707 effortlessly achieves the deepest bass with dual 6x9-inch Cassini oval subwoofer radiators and Polk’s patented PowerPort® bass venting, which eliminates performance-robbing turbulence at the mouth of the bass port. Engineered into a sculpted, state-of-the-art enclosure and finished like a beautiful piece of furniture, there is simply nothing like the LSiM707.  

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:6.5
Midrange Composition:Polypropylene Polymer
Woofer Composition: Polypropylene Cone

Other

Crossover Type:300 Hz
Sold As:Each

Misc. Specs

Product Weight (lbs.)99.2
ColorDark Red/Red
Depth (in.)15.75
Width (in.)8.44
Height (in.)40.25
Impedance8 ohms
Woofer Size6" x 9"
RMS Power Handling (Watts)300
Manufacturer Warranty5 Year Parts & Labor
Maximum Power Handling (Watts)300
WarningProposition 65 Warning for California Residents