Dual Voice Coils: For increased
system flexibility, the woofer has two 4 ohm voice coils. When the voice coils
are wired in parallel with each other, the woofer presents a 2 ohm mono load.
When the voice coils are wired in series with each other, the woofer presents an
8 ohm mono load. In addition, each coil may be connected to a different
amplifier channel and each channel will see a 4 ohm load.
Curvilinear Aluminum Cone: The
curvilinear aluminum cone is lightweight and extremely
rigid for low distortion and superior bass response.
High-roll Butyl Surround:
The high-roll butyl surround damps cone resonance and ensures longevity.
The non-resonant cast aluminum basket ensures perfect alignment of the speaker's
Spider: The spider design
provides maximum control over cone motion at the limits of the speaker's
excursion, and reduces even-order harmonic distortion compared to cupped
Vented Pole Piece:
A flared, polished and vented pole piece is used to provide optimum cooling of
the voice coil and minimize turbulence.
Voice Coil and Stacked Magnets:
The 1.5" 4-layer voice coil and stacked magnets provide high motor force
and room for ultra-long excursion.
Binding Posts: The gold-plated
5-way binding posts will accept pin connectors, spade connectors, banana plugs,
dual banana plugs, and bare wire.
Recommended Sealed Box
Volume: Infinity recommends a sealed enclosure with an internal volume
of 0.6 cu/ft.
Box Volume: Infinity recommends a ported enclosure with an internal
volume of 1.0 cu/ft. One 3" diameter x 10.4" long port should be
used with a 1.0 cu/ft enclosure.
Bandpass Box Volume: Infinity recommends a bandpass enclosure with an
internal volume of 0.95 cu/ft. The 0.95 cu/ft enclosure should have a sealed
chamber volume of 0.6 cu/ft and a ported chamber volume of 0.35 cu/ft. One
3" diameter x 10.04" long port should be used in the ported chamber.
addition to being compatible with sealed, ported and bandpass enclosures, the
woofer can be used in free-air applications. A free-air subwoofer is
designed to be mounted on a baffle board, which separates two areas of the
vehicle. For instance, you could mount this woofer to a board
attached to the rear deck or placed in the trunk against the rear seat. The
trunk acts as the enclosure housing the subwoofer.
Handling: The woofer has two 4 ohm voice coils, and each coil
can handle up to 175 watts RMS (700 watts peak).
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