Our Product Research Team
At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere.
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verify contents, check the owner's manual, and record dimensions, features and specs.
We stay on top of new products and technologies to help people make informed choices.
Features
Specifications
Features
Woofer Cones: The JBL Grand
Touring Series woofers feature polypropylene woofer cones with a heavy-duty
molded dustcap.
Hi-roll Rubber Surrounds: The
woofers feature hi-roll rubber surrounds to provide exceptional cone-edge
suspension and long-throw linearity with control and stability at the excursion
limits.
Spider: The woofer's
progressive spider provides better control at the excursion limits and reduces
woofer distortion.
Shallower Design: The Grand
Touring Series' new proprietary frame, unique in-board motor structure, and new
cone design allow the woofer to be a full inch shallower than equivalent-sized
models.
Terminals: The woofer features
dual binding post terminals which can accept bare wire, pin connectors, spade
lugs, and single banana plugs. Because of the spacing between the + and -
terminals, they cannot accept dual banana plugs.
Dual Voice Coil Wiring:
The woofer comes with two jumpers which enable the speaker to be wired in
different configurations:
- Parallel: The woofer comes
with the two jumpers installed in a parallel configuration. When the
amplifier is connected to the two outside terminals, the woofer will have a
2-ohm load.
- Series: To wire the woofer
in a series configuration, only one jumper is used, and it connects the two
inside terminals together. When the amplifier is connected to the two
outside terminals, the woofer will present an 8-ohm load.
Specifications
Recommended Sealed Box Volume: JBL
recommends a 0.75 cu/ft sealed enclosure.
Recommended Ported Box Volume:
JBL recommends a 1.25 cu/ft ported enclosure. One 3" diameter x 8-11/16"
long port, tuned at 33Hz, should be used with the 1.25 cu/ft enclosure.
Recommended Bandpass Box Volume:
JBL recommends a bandpass enclosure with a 0.75 cu/ft sealed rear chamber and a
1.00 cu/ft front ported chamber. One 4" diameter x 5-7/8" long port,
tuned at 55Hz, should be used with this enclosure.
Power Handling: The woofer has
two 4-ohm voice coils, and each voice coil can handle up to 125 watts RMS (500
watts peak).
