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Polk Audio DXi 5250
5-1/4" component speaker system
Our take on the Polk Audio DXi 5250 by Crutchfield's Jo Greene
Go ahead, circle the parking lot till your favorite song is over. Polk Audio's DXi Series speakers will make you want to hit "repeat" so you can hear it all over again. Polk uses a high-tech approach and ideal materials to give your tunes an exciting new edge.
Precision woofers showcase your music
The DXi 5250 component speaker system features 5-1/4" woofers with polymer/mica composite cones that are lightweight and stiff, so they can create a big sound with minimal distortion. Polk analyzes their drivers in motion to ensure that cone movement is even and precise. Polk also uses laser imaging to craft woofer cones that are perfectly balanced to resist distortion-causing resonances.
Silk/polymer dome tweeters broadcast sweet sound
Rest assured, you'll hear every detail of your most enthralling musical moments. Each 1" silk/polymer dome tweeter brings out the high-frequency highlights in your music, and a proprietary magnetic liquid cools each tweeter so you'll get clear sound and excellent long-term performance. You can set your own stage — surface- or flush-mount the tweeters with the included swivel-mount cups, and aim the tweeters towards your ears so you can really enjoy the show.
External crossovers for stand-out detail
Polk includes high-quality crossover networks that create a smooth transition between woofer and tweeter, so you'll hear accurate, balanced performance from this system. You can adjust the tweeter level for the most natural sound in your vehicle. From an intensely quiet acoustic pluck to the most exhilarating electric solo, it'll be a very entertaining ride.
Wasn't too impressed when I first installed them, but once I hooked them to amp and set cross-over......man they came alive.Sounds very nice with crisp highs.
Maurice, south georgia
What's in the Box:
- 2 Woofers
- 2 Grilles
- 2 Tweeters (each has 38" speaker lead attached)
- 2 Flush-mount tweeter housings
- 2 Metal flush-mount clamps
- 2 Surface-mount tweeter housings
- 2 Crossovers
- Four 38" lengths of speaker wire (each has female quick-slides on one end and tinned wire on the other end)
- Fourteen 1" Self-tapping screws
- Eight 3/8" Self-tapping screws
- 10 Speed clips
- Owner's manual (English/ Spanish/ French/ German/ Italian/ Portuguese)
- Online registration information
- component speaker system includes two 5-1/4" woofers, 2 tweeters, and 2 crossovers
- polymer/mica composite woofers with butyl rubber surrounds
- 1" liquid-cooled silk/polymer composite dome tweeters
- flush- and surface-mount swivel cups
- electronic tweeter protection circuits
- 2-way external crossover network (12 dB/octave, 4,000 Hz high- and low-pass)
- certified for marine use
- power range: 10-100 watts RMS (250 watts peak power)
- frequency response: 53-23,000 Hz
- sensitivity: 92 dB
- top-mount depth: 2-5/16"
- warranty: 1 year
- Our 60-day money-back guarantee
Polk Audio DXi 5250 Reviews
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Features and Specs
|Speaker Size||5 1/4|
|Tweeter Design||1" Dome|
|Tweeter Composition||Silk/Polymer Composite|
|Woofer Composition||Polymer/Mica Composite|
|Parts Warranty||1 Year|
|Labor Warranty||1 Year|
|Sensitivity (1W at 1 meter)||92|
|Sensitivity at 2.83 volts||N/A|
|Frequency Response||53 - 23k Hz|
|Minimum RMS Wattage||10|
|Maximum RMS Wattage||100|
|Peak Power Handling (Watts)||250|
|Top-mount Depth (Inches)||2 5/16|
|Bottom-mount Depth (Inches)||N/A|
|Cutout Diameter or Length (inches)||4 3/4|
High Efficiency Design: The Polk Audio DXi Series speakers feature a high efficiency design; meaning better sound and more volume using less power.
Dynamic Balance Driver Technology: Dynamic Balance is a proprietary Polk Audio technology using laser imaging to determine what combination of speaker materials create the least resonance. Eliminating resonance in speakers results in a wide, smooth response and low distortion.
Klippel Optimized Components: For a driver to reproduce complex sounds accurately, the cone must move exactly the same distance and manner in both directions. The Klippel distortion analyzer, a device that uses a laser and sophisticated software to do large-scale analysis of drivers in motion, lets Polk optimize the speaker's motor structure, voice coil alignment, and suspension to yield the best possible performance.
Composite Cones: The Polk DXi 5250 system features Dynamic Balance, polymer/mica composite cone woofers. These composite cones feature tremendous stiffness-to mass ratio. Lower mass means faster transients and finer detail.
Rubber Surrounds: For a smoother response and improved durability, the woofers use rubber surrounds.
Soft Dome Tweeters: The 1" liquid-cooled, silk/polymer composite dome tweeters provide clear, detailed highs.
Neodymium Magnets: Each tweeter employs a light-weight neodymium magnet for better efficiency.
Mounting: The supplied mounting cups allow you to surface or flush mount the tweeters. The tweeters swivel in the flush-mount housings, allowing you to adjust them for optimum imaging.
Tweeter Mounting Dimensions:
|Surface Mount||Flush Mount|
Design: The outboard Butterworth crossovers are 2-way with a 4 kHz crossover point; both the high-pass and low-pass output slopes are 12 dB/octave.
Tweeter Level Switch: You can adjust the output of the tweeter to match a level appropriate to your vehicle or your system. On the end of crossover (opposite the terminals) the switch can be set to -3 dB, 0 dB, or +3 dB.
Protection Circuit: Each crossover has a built-in electronic circuit that protects the tweeter from accidental overdriving.
Crossover Connections: The crossover inputs and outputs are screw terminals. The terminals will accommodate the included wire or spade connectors up to 0.35" wide.
Mounting: There are two mounting holes in the base of each crossover; the cover must be removed to install the mounting screws.
- Width: 3.085"
- Height: 1.070"
- Depth: 5.040"
Marine Certified: Every DXi Series loudspeaker is designed not only to withstand the demands of a car's sun-baked climate, but corrosive marine environments too. That means subjecting them to ASTM (American Society for Testing and materials) scrutiny to ensure they are suitable for the marine environment. Each speaker endures a series of grueling accelerated weathering tests to see if it can stand up to a harsh marine environment; including hundreds of hours of salt fog, intense ultra violet light, and temperatures ranging from minus 40° C (-40° F) to +85° C (+185° F):
- Extreme Temp Test: cycles from -40°F to 185°F at 50% humidity for 48 hours
- Extreme Temp Test at High Humidity: cycles from -40°F to 185°F at 95% humidity for 24 hours
- Extreme Humidity Test: 140°F at 95% humidity for 54 hours
- Salt-Fog Materials Test: based on military specifications for ASTM D5894 and Mil-Std 883 tests; alternates one week of UV and one week of salt fog exposure for six weeks (1008 hours total)
- UV/Salt-Fog Whole Speaker Test: based on military standard Mil-Std 883 Method 1009 8 test; UV and salt fog exposure for 24 hours
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