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JL Audio subwoofer Speaker Box enclosure design diy how to building subwoofer box projects loudspeaker plans

 

10W7-3 12W7-3 15W7-3
DRIVER DIMENSIONS:
Overall Diameter: 10.5 in. (267 mm)
Mounting Hole Diameter: 8.74 in. (222 mm)
Mounting Depth: 8 in. (203 mm)
Overall Depth: 9.63 in. (245 mm)
Magnet Diameter: 6.55 in. (166 mm)
Pole Vent Clearance: 0.75 in. (19 mm)
Driver Displacement: 0.09 cu. ft. (1.78 ltrs)
Bolt Hole Circle: 9.34 in. (237 mm) - 12 Holes
Grille Clearance: 2.25 in. (57 mm) from the bottom of the
mounting flange to the lowest inside surface of the grille.
Net Weight: 30 lbs. (15.8 kg)
Mounting Hardware: Twelve #10 x 1.75" long clear, zinc-plated steel
Phillips pan-head sheet metal screws (included) or twelve #10-32
long steel Phillips pan-head machine screws with #10-32 T-Nuts, each at
least 1/2-inch (12.5 mm) longer than the thickness of the mounting
baffle (not included).
Unpacking/Mounting: Please refer to the “W7 Installation:
Mounting System” sheet included in the product packaging for detailed,
step-by-step instructions.
SEALED ENCLOSURE:
Recommended Net Volume: 1.25 cu. ft. (35.4 ltrs.)
Fc: 44.7 Hz F3: 40.7 Hz Qtc: 0.785
Dimensions for Recommended Sealed Enclosure:
(W) External Width: 15.5 in. (394 mm)
(H) External Height: 11.5 in. (292 mm)
(D) External Depth: 18.25 in. (464 mm)
Front Baffle Thickness: 1 in. (25 mm)
Wall Thickness: 0.75 in. (19 mm)
PORTED ENCLOSURE:
Recommended Net Volume: 1.5 cu. ft. (42.5 ltrs.)
Recommended Port Tuning: 32 Hz
Port Type: “Slot” ports are recommended. See information below.
The port recommendations listed below are derived through actual
tests and measurements (not computer simulations).
Dimensions for Recommended Ported Enclosure:
(W) External Width: 23.25 in. (591 mm)
(H) External Height: 13.5 in. (343 mm)
(D) External Depth: 14.5 in. (368 mm)
(SW) Internal Slot Width: 1.5 in. (38 mm)
(SH) Internal Slot Height: 12 in. (305 mm)
(SL) Internal Slot Length: 22.5 in. (572 mm)
(EL) Internal Port Extension Length: 8 in. (203 mm)
Front Baffle Thickness: 1 in. (25 mm)
Wall Thickness: 0.75 in. (19 mm)
Net volumes given above do not include the air volume displaced by the
speaker (Driver Displacement).This value must be added to the net volume
along with the displacement of any braces and/or ports (if applicable) to
arrive at a gross internal volume. Air inside a port is not part of the effective
net volume. Calculate ports as solid, not hollow objects.
DRIVER DIMENSIONS:
Overall Diameter: 12.5 in. (318 mm)
Mounting Hole Diameter: 10.5 in. (267 mm)
Mounting Depth: 9.5 in. (241 mm)
Overall Depth: 11.25 in. (286 mm)
Magnet Diameter: 7.5 in. (191 mm)
Pole Vent Clearance: 0.75 in. (19 mm)
Driver Displacement: 0.14 cu. ft. (3.03 ltrs)
Bolt Hole Circle: 11.27 in. (286 mm) - 12 Holes
Grille Clearance: 2.6 in. (66 mm) from the bottom of the mounting
flange to the lowest inside surface of the grille.
Net Weight: 45 lbs. (20.4 kg)
Mounting Hardware: Twelve #10 x 1.75" long clear, zinc-plated steel
Phillips pan-head sheet metal screws (included) or twelve #10-32
long steel Phillips pan-head machine screws with #10-32 T-Nuts, each at
least 1/2-inch (12.5 mm) longer than the thickness of the mounting baffle
(not included).
Unpacking/Mounting: Please refer to the “W7 Installation:
Mounting System” sheet included in the product packaging for detailed,
step-by-step instructions.
SEALED ENCLOSURE:
Recommended Net Volume: 1.375 cu. ft. (38.94 ltrs.)
Fc: 44.7 Hz F3: 40.4 Hz Qtc: 0.792
Dimensions for Recommended Sealed Enclosure:
(W) External Width: 16.0 in. (406 mm)
(H) External Height: 19.0 in. (483 mm)
(D) External Depth: 11.75 in. (299 mm)
Front Baffle Thickness: 1 in. (25 mm)
Wall Thickness: 0.75 in. (19 mm)
PORTED ENCLOSURE:
Recommended Net Volume: 1.75 cu. ft. (49.56 ltrs.)
Recommended Port Tuning: 32 Hz
Port Type: “Slot” ports are recommended. See information below.
The port recommendations listed below are derived through actual
tests and measurements (not computer simulations).
Dimensions for Recommended Ported Enclosure:
(W) External Width: 22.75 in. (578 mm)
(H) External Height: 15.5 in. (394 mm)
(D) External Depth: 15.5 in. (394 mm)
(SW) Internal Slot Width: 1.75 in. (44 mm)
(SH) Internal Slot Height: 14 in. (356 mm)
(SL) Internal Slot Length: 24 in. (610 mm)
(EL) Internal Port Extension Length: 8.5 in. (216 mm)
Front Baffle Thickness: 1 in. (25 mm)
Wall Thickness: 0.75 in. (19 mm)
Net volumes given above do not include the air volume displaced by the
speaker (Driver Displacement).This value must be added to the net volume
along with the displacement of any braces and/or ports (if applicable) to
arrive at a gross internal volume. Air inside a port is not part of the effective
net volume. Calculate ports as solid, not hollow objects.
DRIVER DIMENSIONS:
Overall Diameter: 14 in. (356 mm)
Mounting Hole Diameter: 11.9 in. (302 mm)
Mounting Depth: 10.5 in. (267 mm)
Overall Depth: 12 in. (305 mm)
Magnet Diameter: 8.38 in. (213 mm)
Pole Vent Clearance: 0.75 in. (19 mm)
Driver Displacement: 0.21 cu. ft. (4.5 ltrs)
Bolt Hole Circle: 12.7 in. (323 mm) - 12 Holes
Grille Clearance: 2.7 in. (69 mm) from the bottom of the mounting
flange to the lowest inside surface of the grille.
Net Weight: 52 lbs. (23.6 kg)
Mounting Hardware: Twelve #12 x 1.75" long clear, zinc-plated steel
Phillips pan-head sheet metal screws (included) or twelve #12-28
long steel Phillips pan-head machine screws with #12-28 T-Nuts, each at
least 1/2-inch (12.5 mm) longer than the thickness of the mounting baffle
(not included).
Unpacking/Mounting: Please refer to the “W7 Installation:
Mounting System” sheet included in the product packaging for detailed,
step-by-step instructions.
SEALED ENCLOSURE:
Recommended Net Volume: 1.875 cu. ft. (53.1 ltrs.)
Fc: 40.8 Hz F3: 36.3 Hz Qtc: 0.806
Dimensions for Recommended Sealed Enclosure:
(W) External Width: 16.0 in. (407 mm)
(H) External Height: 15.75 in. (394 mm)
(D) External Depth: 19.25 in. (489 mm)
Front Baffle Thickness: 1 in. (25 mm)
Wall Thickness: 0.75 in. (19 mm)
PORTED ENCLOSURE:
Recommended Net Volume: 2.375 cu. ft. (67.3 ltrs.)
Recommended Port Tuning: 30 Hz
Port Type: “Slot” ports are recommended. See information below.
The port recommendations listed below are derived through actual
tests and measurements (not computer simulations).
Dimensions for Recommended Ported Enclosure:
(W) External Width: 25.25 in. (641 mm)
(H) External Height: 17.25 in. (438 mm)
(D) External Depth: 16.5 in. (419 mm)
(SW) Internal Slot Width: 2.0 in. (51 mm)
(SH) Internal Slot Height: 15.75 in. (400 mm)
(SL) Internal Slot Length: 25.375 in. (645 mm)
(EL) Internal Port Extension Length: 8.875 in. (225 mm)
Front Baffle Thickness: 1 in. (25 mm)
Wall Thickness: 0.75 in. (19 mm)
Net volumes given above do not include the air volume displaced by the
speaker (Driver Displacement).This value must be added to the net volume
along with the displacement of any braces and/or ports (if applicable) to
arrive at a gross internal volume. Air inside a port is not part of the effective
net volume. Calculate ports as solid, not hollow objects.

Two enclosure recommendations are listed for
each model, one sealed and one ported. The
sealed enclosure will, in most cases, give you the
best overall sound quality and take up the least
space in your vehicle.The ported enclosure design
will deliver additional output over the sealed
enclosure (about 3-4 dB more) and will also
maintain excellent sound quality, but it will require
significantly more space to install. The
recommended ported enclosure is not designed
for peaky “competition SPL” performance, it is
designed for music listening. It will be very loud
and sound extremely good when set up properly.
In addition to the enclosure recommendations,
we also provide recommended amplifier settings
for JL Audio amplifiers used with W7’s. Some of
this information is also applicable with other
brands of amplifiers (like crossover points and
slopes), some is not (like the voltage levels
specified for input sensitivity settings). You will
notice that our recommended settings do not
include any bass EQ boost... this is because W7’s
rarely require any equalization to produce smooth
frequency response. If you have an equalizer in
your system (or one is included in your head unit
or amplifier), defeat all bands below 125 Hz
before dialing in your new system settings. Please
turn off all sound processing that would affect the
subwoofers (loudness circuits for example).

 

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