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Molded Polypropylene Cone:
This Alpine Type-R marine subwoofer has a molded polypropylene cone with a
2-piece structural parabolic design.
HAMRS: The SWR-M100 woofer features a
High Amplitude Multi Roll Surround (HAMRS), made of injection-molded Santoprene,
that allows for an incredible amount of linear excursion and greater SPL.
Progressive Nomex Spider:
This subwoofer has a progressive Nomex spider for added
stability and mechanical durability. The custom progressive rolls gives the
woofer a longer, more linear stroke with maximum centering and restoring force.
Special edge control design and Nomex construction provide excellent tear
resistance, strength and long-term reliability.
Tinsel Leads: The woofer features insulated, 16-gauge stranded tinsel
leads that are sewn to the spider for added strength and durability.
Frame: The woofer
is mounted to a custom, high-strength, 5-leg frame made of injection-molded
polypropylene. The woofer is protected by a silver plastic grille, attached to
the frame. A rubber mounting gasket helps to seal the woofer into the enclosure.
Hidden Screw Mounting: The 8 supplied mounting screws are inserted
through the grille and into the mounting surface. A round grille trim ring fits
over the grille to cover the screw holes. This helps protect the hardware from
corrosion as well as adds to the cosmetics of the woofer system.
Voice Coil: The woofer has a single 4-layer, 4-ohm voice coil of
high-temperature copper wire wound on a TIL former.
Terminals: The terminals are located on one side of the woofer basket,
and feature a 2-way design. You can use .205" (+) and .187" (-) female quick
slides on your speaker wires, or directly insert the speaker wire, up to 12
gauge, into the terminal and tighten the set screw with the supplied Allen
Design: The SWR-M100 is designed to work in virtually any type of
enclosure. It can work in a sealed or vented enclosure, or infinite baffle for
the widest application.
Recommended Box Volume:
The optimum sealed box volume for this subwoofer is 4.85 cu/ft. The optimum
vented box volume specifications are not provided.