JL Audio TW1 Thin-line Car Subwoofer

Overview
Specs
In the Box
Accessories
Compatible Devices
Overview DESIGNED TO EXCEL IN PREVIOUSLY IMPOSSIBLE SPACES
Offering a powerful combination of shallow mounting depth, minimal frontal clearance and ultracompact enclosure requirements, the TW1 subwoofers are an outstanding choice for the tightest space applications. Their thin-line technology extracts the maximum in bass sound quality and output from a uniquely space-efficient architecture.
DELIVERS DEEP, POWERFUL BASS PERFORMANCE IN TIGHT-SPACE INSTALLATIONS
CHOOSE FROM 10- OR 12-INCH TW1 THIN-LINE SUBWOOFERS
EXTREMELY SMALL (0.35 CUBIC FEET) ENCLOSURE VOLUME REQUIREMENTS
THIN-LINE FRAME DESIGN MINIMIZES EACH SUBWOOFER’S NEED FOR FRONTAL CLEARANCE
PAIRS BEST WITH AMPLIFIER POWER IN THE 75- TO 300-WATT RANGE
1-YEAR WARRANTY
WHAT YOU’LL LOVERECESSED SUSPENSIONWith the TW1 subwoofers’ low-profile suspension design, most of the forward excursion of the driver occurs within the frame’s dimensions – requiring only 0.87 inches of frontal clearance, even with the supplied grille installed. This allows for more efficient use of space and increased enclosure volume within a given overall depth.
ENGINEERED FOR BIG SOUND FROM A SMALL ENCLOSUREIn keeping with their “tight spaces” mission, the TW1 subwoofers deliver a powerful combination of shallow mounting depth and outstanding excursion capability to generate smooth and powerful bass from a remarkably compact enclosure.
POLYPROPYLENE CONE TECHNOLOGYKnown for their durability and moisture-resistance in harsh environments, the TW1 series’ injection-molded, mica-filled polypropylene cone design offers impressive frequency response and deep, powerful bass reproduction with minimal distortion.
DYNAMIC MOTOR ANALYSIS (DMA) OPTIMIZED DESIGNProprietary motor, suspension and cone modeling systems are used to achieve long, linear excursion capabilities with low distortion and powerful sound output. The result is tight, clean, articulate bass performance at all power levels.
SPACE-SAVING FRAME DESIGNBenefiting from years of JL Audio woofer design experience, the robust TW1 series speakers feature purpose-engineered cast-alloy frames with flat edges for tight grouping when mounting two or more speakers side-by-side.
POWERFULLY ADAPTABLEOn a wide range of vehicle applications, with sealed or ported enclosures, the TW1 subwoofers deliver superb sound quality and power handling. Both the 10- and 12-inch versions support pairing with amplifiers in the 75- to 300-watt range.
AUDIO TECHNOLOGIESCONCENTRIC TUBE SUSPENSION TECHNOLOGYThe TW1 series features a patented concentric tube structure built into the injection-molded speaker cone body. This structure supports the voice coil and a full annular spider while permitting the placement of a large motor structure farther forward in the speaker than with conventional designs.
ENGINEERED LEAD-WIRE SYSTEMCarefully engineered lead-wire design and attachments ensure controlled, quiet lead-wire behavior under the most extreme excursion demands.
Specs GeneralWarranty1 yearSizes10″/12″Weight10″: 10.5 lbs (4.8 kg)
12″: 16.5 lbs (7.5 kg)Continuous power handling (RMS)300 WSensitivity (SPL @ 1 W/1 m)10″ (2 Ω): 82.5 dB
10″ (4 Ω): 82.2 dB
12″ (2 Ω): 85.07 dB
12″ (4 Ω): 85.15 dBNominal impedance2 Ω or 4 ΩRecommended amplifier power (RMS)75-300 WCone materialMineral-filled polypropyleneGrille(s) includedNetworking & ConnectionsSpeaker connectionsSpade connectorsMounting DimensionsFrame outer diameter10″: 10.375″ (264 mm)
12″: 12.375″ (314 mm)Mounting depth clearance10″: 4.36″ (111 mm)
12″: 4.62″ (117 mm)Frontal grille protrusion0.87″ (22 mm)Mounting hole10″: 9.0625″ (230 mm)
12″: 11.0625″ (281 mm)Bolt hole circle10″: 9.7″ (246 mm)
12″: 11.7″ (297 mm)Motor outer diameter10″: 4.54″ (115 mm)
12″: 5.71″ (145 mm)Driver displacement10″: 0.047 cu ft (1.33 L)
12″: 0.072 cu ft (2.04 L)ParametersFree Air Resonance (FS)10″ (2 Ω): 41.45 Hz
10″ (4 Ω): 38.09 Hz
12″ (2 Ω): 35.06 Hz
12″ (4 Ω): 32.35 HzElectrical “Q” (Qes)10″ (2 Ω): 0.696
10″ (4 Ω): 0.639
12″ (2 Ω): 0.61
12″ (4 Ω): 0.555Mechanical “Q” (Qms)10″ (2 Ω): 9.7
10″ (4 Ω): 10.07
12″ (2 Ω): 10.662
12″ (4 Ω): 11.066Total “Q” (Qts)10″ (2 Ω): 0.649
10″ (4 Ω): 0.601
12″ (2 Ω): 0.577
12″ (4 Ω): 0.529Equivalent Compliance (Vas)10″ (2 Ω): 0.364 cu ft (10.31 L)
10″ (4 Ω): 0.429 cu ft (12.15 L)
12″ (2 Ω): 1.008 cu ft (28.54 L)
12″ (4 Ω): 1.189 cu ft (33.67 L)One-way linear excursion (Xmax; specs are derived via one-way voice coil overhang method with no correction factors applied)0.40″ (10 mm)Effective piston area (SD)10″: 41.602 in² (0.0268 m²)
12″: 67.608 in² (0.0436 m²)DC resistance (RE)10″ (2 Ω): 2.428 Ω
10″ (4 Ω): 3.516 Ω
12″ (2 Ω): 2.430 Ω
12″ (4 Ω): 3.514 ΩSealed Enclosure SpecificationsWall thickness0.75″ (19 mm)Front baffle thickness0.75″ (19 mm)Volume (net int.)10″: 0.35 cu ft (9.91 L)
12″: 0.65 cu ft (18.41 L)External width (W)10″: 16.125″ (410 mm)
12″: 26.50″ (673 mm)External height (H)14″ (356 mm)External depth (D)10″: 5.25″ (133 mm)
12″: 5.50″ (140 mm)-3 dB cutoff frequency (F3)10″ (2 Ω): 48.31 Hz
10″ (4 Ω): 47.24 Hz
12″ (2 Ω): 45.83 Hz
12″ (4 Ω): 45.44 HzSystem resonance (FC)10″ (2 Ω): 59.21 Hz
10″ (4 Ω): 56.83 Hz
12″ (2 Ω): 55.99 Hz
12″ (4 Ω): 54.41 HzSystem Q at resonance (QTC)10″ (2 Ω): 0.927
10″ (4 Ω): 0.897
12″ (2 Ω): 0.92
12″ (4 Ω): 0.89Ported Enclosure SpecificationsWall thickness0.75″ (19 mm)Front baffle thickness0.75″ (19 mm)Volume (net int.)10″: 0.625 cu ft (17.7 L)
12″: 1.125 cu ft (31.86 L)External width (W)10″: 26.625″ (676 mm)
12″: 31.75″ (806 mm)External height (H)16″ (406 mm)External depth (D)10″: 5.25″ (133 mm)
12″: 7″ (178 mm)Internal slot port width10″: 3.75″ (95 mm)
12″: 5.50″ (140 mm)Internal slot port height10″: 1.875″ (48 mm)
12″: 2.25″ (57 mm)Internal slot port length10″: 22.50″ (572 mm)
12″: 22.625″ (575 mm)Port extension length10″: 20.8125″ (529 mm)
12″: 20.75″ (527 mm)Tuning frequency (FB)10″: 35.0 Hz
12″: 34.0 Hz-3 dB cutoff frequency (F3)10″ (2 Ω): 0.927
10″ (4 Ω): 0.897
12″ (2 Ω): 0.92
12″ (4 Ω): 0.89AdditionalAdditionalThe enclosure recommendations listed above are external dimensions which assume the use of 0.75 in (19 mm) thick material. If you are using 0.625 in (16 mm) thick material, subtract 0.25 in (6.5 mm) from each dimension. Do not use any material with a thickness of less than 0.625 in (16 mm) as this may compromise the rigidity of the enclosure.
All enclosure volumes listed above are net internal volumes! Driver displacement, port displacement and brace displacement must be added to obtain the final gross internal volume. All enclosure dimensions above have already taken this into account.
When using multiples in a common enclosure you will need to recalculate the enclosure and port dimensions. For assistance please contact your authorized JL Audio dealer or JL Audio Technical Support.
We recommend the use of this in a bi-amplified system using high-quality satellites and a high-quality amplifier. We do not recommend the use of this with a passive crossover (coil), as this type of device will adversely affect performance.
All specifications are subject to change without notice.
In the Box
TW1 subwoofer
Grille (installed)
Accessories Cables & Chargers
JL Audio Parallel Conductor Speaker Cable, 12 AWG, 25′ (XC-BCSC12-25)$69.99 USDJL Audio Parallel Conductor Speaker Cable, 12 AWG, 380′ (XC-BCSC12-380)