Overview: The Rockford Fosgate Punch P3D2-10 is a 10-inch
subwoofer with dual 2Ω voice coils. The sub features a hybrid StampCast
basket, quick-release compression terminals, anodized aluminum cone, and Santoprene
surround. An anodized aluminum voice coil former and spider venting help keep the
Dual 2Ω Voice Coils: The dual 2Ω voice coils offer
wiring flexibility; when wired in parallel the woofer presents a 1Ω load,
when wired in series the woofer presents a 4Ω load.
Compression Terminals: The P3D2-10 features spring post
terminals which accommodate pin connectors, single banana plugs, or bare speaker
wire up to 10 gauge.
CEA-2031 Compliant: Power handling on the P3D2-10 subwoofer
conforms to CEA-2031 industry standards. This means the subwoofer has the capacity
to handle power under continuous demand, not instantaneous power handling, that
over time, can damage voice coils.
FlexFit Basket: The Flex Fit frame utilizes slots (where
possible) instead of single screw sized holes; allowing slight adjustment of
the speaker when mounted.
Trim Ring: To improve the cosmetic look, a decorative trim
ring is included that mounts over the flange of the woofer. When using the cast
aluminum trim ring the woofer is first mounted with four screws, then the ring
is placed on top of the woofer, aligning the final four holes of the woofer with
ring. The other four screws are used for these holes to mount the ring and woofer
to the enclosure. Without the trim ring the mounting height of the woofer is just
under an inch, with the trim ring it's approximately 1-1/16 inches. The diameter
of the trim ring is approximately 11-1/4 inches.
Sealed Box: Rockford recommends a sealed enclosure with
an optimum internal volume of 0.59 cubic feet (from 0.5 to 0.75 cubic feet is
acceptable). Sealed enclosures provide the most control over a woofer, will
handle a lot of power, and provide accurate sonic reproduction, making them
suitable to all types of music.
Ported Box: Rockford recommends a ported enclosure with an
internal volume of 1.4 cubic feet using one 4" diameter x 14" long
port; this yields a tuning frequency of 40 Hz. Ported (or vented) enclosures
typically provide better overall efficiency than sealed so they are suitable
for use with smaller amplifiers, giving you more bass output from less power.
However, this efficiency comes at the expense of very low frequency output
(below 31 Hz).
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