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Direct Appliance of Modesto
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Polk Audio LSiM Series Center Channel Speaker
At a Glance
Polk Audio LSiM Series Center Channel Speaker with Dynamic Balance® and enhanced, reengineered ring radiator tweeters
Proposition 65 Warning for California Residents
Connections
| Connector Type | Dual gold-plated binding posts |
|---|
Styling
| Color | Midnight Mahogany |
|---|
Other
| Crossover Type | 2.5 kHz |
|---|---|
| Sold As | Each |
Construction
| Enclosure Type | Dynamic Balance driver with super cell aerated polypropylene cone |
|---|---|
| Tweeter Composition | Silk Radiating |
| Midrange Size | 3.25 |
| Midrange Composition | Polypropylene Polymer |
| Woofer Composition | Polypropylene Cone |
Misc. Specs
| Product Weight (lbs.) | 29.1 |
|---|---|
| Depth (in.) | 9.38 |
| Width (in.) | 21.19 |
| Height (in.) | 7.75 |
| Impedance | 8 ohms |
| Woofer Size | 5.25 |
| RMS Power Handling (Watts) | 200 |
| Manufacturer Warranty | 5 Year Parts & Labor |
| Maximum Power Handling (Watts) | 200 |
Polk Audio LSiM Series Center Channel Speaker
Model #: LSiM704
At a Glance
Get to know this product.
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.
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
Proposition 65 Warning for California Residents