Our Product Research Team
At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere.
That's because we have our own in-house Product Research team — they open the box,
verify contents, check the owner's manual, and record dimensions, features and specs.
We stay on top of new products and technologies to help people make informed choices.
High Efficiency Design: The Polk Audio DXi Series speakers
feature a high efficiency design; meaning better sound and more volume using
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
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: Each Polk DXi 650 speaker features a
Dynamic Balance, polymer/mica composite cone woofer. 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 speaker uses rubber surrounds.
Silk Dome Tweeters: Each Polk DXi 650 speaker features a
3/4" silk/polymer dome tweeter for clear, accurate highs. They can be
angled slightly within the housing to compensate for off axis mounting. The tweeters
also employ a
light-weight neodymium magnet for higher efficiency.
Mounting: Out of the box the DXi 650 is a direct replacement
for many standard 6-3/4" applications. Two mounting brackets are included with
holes matching standard 6-1/2" (3-hole), Ford 6-1/2" (asymmetrical 4-hole),
and various 6-3/4" applications. Without using the mounting brackets the speaker
also fits into many standard 6-1/2" openings, but with a four hole pattern is
not a direct replacement (new screw holes would need to be drilled; in this
instance mounting depth would be 1.986" and mounting height 0.866"; this
application does not sort in the Crutchfield Vehicle Selector because using the
mounting bracket requires no modification, and is therefore the preferred 6-1/2"