4-inch coaxial mobile audio loudspeaker
Your Ride. Our Sound.
The DXi400 is an easy install in a door or in a dash. Its compactness makes it an easy fit, but it’s big on all the Polk technology that makes it uniquely DXi: Legendary Polk sound at a terrific price.
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.
Composite cones feature tremendous stiffness-to mass ratio. Lower mass means faster transients and finer detail.
Marine Certified means the DXi400 is built tough to withstand the harshest environments on the water.
All Polk products are made using the best materials and the most advanced manufacturing techniques. They pass the industry’s most exhaustive quality tests, including drop testing, extreme signal response and UV & salt exposure testing. Polk loudspeakers are built to perform for a lifetime.
|Type||Dynamic Balance driver with polymer/mica composite cone|
|Total Frequency Response||85Hz-22kHz|
|Nominal Impedance||4 ohms|
|Cut-Out Diameter||3 11/16" (9.37cm)|
|Full-Range Mounting Depth|
|Top Mount||1 3/4" (4.45cm)|
|Bottom Mount||1 15/16" (4.92cm)|
|Unit of Measure||pair|
|Speaker Warranty||1 year parts and labor (original purchaser)|
Specifications, dimensions and features subject to change without notice. For more information call us at 1-800-377-7655 (USA and Canada). Outside of North America call +1 (410) 358-3600.
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