JL Audio 10TW3-D4, 10TW3-D8 Owner's Manual
OWNER’S MANUAL
10TW3 Subwoofer Driver
Congratulations on your purchase of a JL Audio subwoofer component. Your JL Audio subwoofer
is a precision loudspeaker which has been engineered to produce the highest quality sub-bass
performance in your vehicle. Authorized JL Audio dealers have extensive technical information
for many different applications of your new speaker. They also have the knowledge, skills and tools
to build a high-quality enclosure that will maximize the performance of your speaker. We highly
recommend that you have your enclosure built by an authorized JL Audio dealer.
Inside you will find specifications and two recommended enclosures for your speaker; one is a
sealed enclosure, the other is a ported design. Both types of enclosures will give you excellent sound
quality and low-frequency extension. The sealed enclosure is a better choice if space is extremely
tight, but the ported enclosure will produce 3dB more output at the same power if you have the
extra space to work with.
A1
B
D
E
C
A2
JL AUDIO 10TW3-D4 / 10TW3-D8
AMPLIFIER
AMPLIFIER
AMPLIFIER
2Ω (D4)
4Ω (D8)
1Ω (D4)
2Ω (D8)
0.7Ω (D4)
1.3 Ω (D 8)
10TW3 SUBWOOFER
PHYSICAL SPECIFICATIONS
Nominal Diameter:
Overall Major Diameter (A1):
Overall Minor Diameter (A2):
Mounting Hole Diameter (B):
Bolt Hole Circle (C):
Magnet Diameter (D):
Mounting Depth (E):
Net Weight:
Driver Displacement:
10.0 in
250 mm
11.2 in
284 mm
10.5 in
267 mm
9.625 in
244 mm
10.5 in
267 mm
5.1 in
130 mm
3.25 in
83 mm
10.1 lbs
4.6 Kg
0.019 ft
0.54 liters
10TW3 Dual Voice Coil Wiring
Please Note: The T W3 is a dual voice coil driver.
BOTH voice coils must be connected to the amplifier
(in series or parallel) for the speaker to operate
properly. To accomplish this, each TW3 features a pair
of main input connection push-terminals for each
voice coil. Verify that the connections are properly
configured based on these wiring diagrams to
achieve the desired load prior to sending signal to
the subwoofer.
Voice Coils Wired in Series
(Multiple speakers wired in Parallel)
8Ω (D4)
AMPLIFIER
AMPLIFIER
16Ω (D8)
AMPLIFIER
2Ω (D4)
4Ω (D8)
AMPLIFIER
4Ω (D4)
8Ω (D8)
AMPLIFIER
1Ω (D4)
2Ω (D8)
2.7Ω (D4)
5.3Ω (D8)
SUBWOOFER 10TW3-D4 10TW3-D8
Free Air Resonance (Fs): 32.300 Hz 39.262 Hz
Electrical “Q” (Qes): 0.656 0.825
Mechanical “Q” (Qms): 11.350 9.840
Total Speaker “Q” (Qts): 0.620 0.761
Equivalent Compliance (Vas):
One-way, Linear Excursion
(Xmax)*:
3
0.700 ft
19.82 litres
0.60 in
15.2 mm
3
0.510 ft
14.44 litres
0.60 in
15.2 mm
Efficiency (1W/1m)**: 82.10 dB SPL 82.27 dB SPL
Voice Coils Wired in Parallel
2
(Multiple speakers wired in Parallel)
2
Effective Piston Area (Sd):
56.532 in
0.0365 m
2
2
56.532 in
0.0365 m
DC Resistance (Re)***: 9.036 ohm 15.008 ohm
Nominal Impedance:
3
Power Handling (continuous): 400 W 400 W
Dual 4-ohm
voice coils
Dual 8-ohm
voice coils
* Xmax specifications are derived via one-way voice coil overhang method with no correction factors applied.
** Efficien cy (1W/1m) is not an accurate i ndicator of a subwoof er’s output capabi lity and should no t be used as a compariso n to
other subwoofers to determine which one is “louder” !
*** Re (DC resistance) is measure d with the voice coils in series, for par allel-wired sp ecification di vide Re by 4. All other sp ecifications
remain the same.
2 JL AUDIO 10TW3-D4 / 10TW3-D8
All specifications are subject to change without notice.
AMPLIFIER
0.7Ω (D4)
1.3 Ω (D 8)
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