Polyglass Cone: The woofer cone has a cellulose pulp base
and is coated with a uniform deposit of hollow glass microballs. The addition of
the Polyglass layer significantly increases the cone's rigidity without adding
much weight. This combination takes advantage of the accuracy and neutrality of
the hard outer surface, but maintains the superior damping characteristics of
the cellulose pulp.
Surround: The butyl rubber surround is resistant to ultraviolet
rays, temperature extremes, and humidity to add to the speaker's reliability
Phase Plug: The bullet-shaped phase plug in the center of the
woofer ensures a smooth, flat off-axis frequency response by preventing the high
frequency sound waves emanating from one side of the cone from interfering with
sound waves from the other side of the cone.
Voice Coil: The voice coil is wound around a 1" diameter
low-mass Kapton former, ensuring no coil deformation.
Inverted Dome Tweeter: The tweeter is an inverted aluminum
dome, producing a broad sound stage. The tweeter has a Neodymium magnet to provide
a powerful magnetic field for the voice coil, while still maintaining the tweeter's
Mounting Options: The tweeters include two types of surface
mount housings, one low profile and one angled:
| ||Flush Mount ||Low Profile Surface Mount ||Angled Surface Mount |
|Mounting Height ||0.3" ||0.894" ||1.933" |
|Mounting Depth ||0.55" ||0.875" (screw depth) ||0.875" (screw depth) |
|Frame Diameter ||1.871" ||1.88" ||N/A |
|Cutout Diameter ||1.67" ||N/A ||N/A |
|Width ||N/A ||N/A ||1.895" |
|Surface Depth ||N/A ||N/A ||2.839" |
Crossovers: The included 19" tweeter wires have integrated
crossovers. The tweeter ends of the wires have quick-slide terminals that easily
connect to the wires soldered to the tweeters. The input end of each wire has
three leads, a negative and two positives. The positive leads are labeled Car
and Display, with a lower output level from the Car lead (useful because the
placement of the woofer in a typical car installation requires the tweeter
output be lowered to maintain a balanced sound).
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