Shallow Mount Woofer: Pioneer's
"Shallow-Mount" subwoofers are designed to provide wider installation options
for a broad range of vehicles. They can be mounted behind or under the seats of
many vehicles. Although they have a compact design, these woofers still deliver
the same big-bass performance of a full-size subwoofer.
Double Cone: The subwoofer features
an extremely strong and lightweight carbon-fiber reinforced IMPP (injection
molded polypropylene) Composite Double Cone woofer. The stiffness of the double
cone structure is greatly increased by connecting them using six fixed
reinforcing nodes. This ensures the cones remain rigid even under high power
input, reproducing extremely accurate and realistic sound.
Dual Surround: The double cone
structure uses dual three-layer, "M"-shaped radial surrounds to attach to the
basket and form the Air Suspension System. This design keeps the voice coil
centered, even under high power, for clear and powerful bass.
Air Suspension System: Typical
subwoofers use a spider to control the woofer cone's excursion. The Air
Suspension System, formed by creating a sealed air space between the double
cones, effectively replaces the spider, providing superior design and
performance characteristics. It provides excellent linearity and clear bass with
Magnet: The woofer has a high-power
42-ounce strontium magnet.
Chassis: These woofers have a
massive die-cast one piece aluminum basket with rigid spokes which securely hold
the top and bottom sides of the motor structure. This design effectively
minimizes the undesired output loss due to any flex or vibration of the basket
T-Pole Yoke: The vented and
projected T-Pole Yoke design allows for better heat dissipation, increased power
handling, and greatly improves linearity during large excursions by expanding
the magnetic field.
Recommended Sealed Box
Volume: The sealed box sizes recommended by Pioneer range from 0.35
cu/ft to 0.7 cu/ft. Within this range, the ideal size recommended by Pioneer is
0.6 cu/ft, so this is the enclosure recommended by Crutchfield.
Vented Box Volume: The
vented box sizes recommended by Pioneer range from 0.35 cu/ft to 0.7 cu/ft.
Within this range, the ideal size recommended by Pioneer is 0.6 cu/ft, so this
is the enclosure recommended by Crutchfield. One 3" diameter x 7" long
port should be used with a 0.6 cu/ft enclosure.
Single Reflex Bandpass Volume:
The bandpass box sizes recommended by Pioneer range from 0.7 cu/ft to
1.2 cu/ft. Within this range, the ideal size recommended by Pioneer is 0.9
cu/ft, so this is the enclosure recommended by Crutchfield. The 0.9 cu/ft
enclosure should have a sealed chamber volume of 0.45 cu/ft and a vented chamber
volume of 0.45 cu/ft. One 3" diameter x 7" long port should be used
with a 0.9 cu/ft enclosure.
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