JL Audio 12TW1-4 - 12" 300 Watts Shallow Mount Subwoofer Bass Subwoofer
  • Authorised UK Dealer for JL Audio
  • Very shallow mounting depth (4.62 in / 117 mm)
  • No pole vent: permits mounting close to rear wall of enclosure
  • Extremely small sealed enclosure volume requirements
  • Long linear excursion capability (0.40 in / 10 mm, one-way)
  • DMA-optimized motor design
  • Patented "concentric tube" architecture
  • Patented "floating cone attach method" technology
  • Cast alloy frame with flat edges for tight driver grouping
  • Injection molded, mica-filled polypropylene cone
  • Rubber surround
  • Steel mesh grille included with each driver
Continuous Power Handling (RMS) 300 W
Recommended RMS Amplifier Power 75 - 300 W
Nominal Impedance (Znom) 4 Ω

  • Nominal Diameter 12.0 in / 300 mm
  • Overall Diameter (A) 12.375 in / 314 mm
  • Mounting Hole Diameter (B) 11.0625 in / 281 mm
  • Bolt Hole Circle (C) 11.7 in / 297 mm
  • Magnet Diameter (D) 5.71 in / 145 mm
  • Mounting Depth (E) 4.62 in / 117 mm
  • Front Grille Protrusion (F) 0.87 in / 22 mm
  • Driver Displacement 0.072 cu ft / 2.04 L
  • Net Weight 16.5 lb / 7.5 kg
  • Free Air Resonance (Fs) 32.35 Hz
  • Electrical “Q” (Qes) 0.555
  • Mechanical “Q” (Qms) 11.066
  • Total Speaker “Q” (Qts) 0.529
  • Equivalent Compliance (Vas) 1.189 cu ft / 33.67 L
  • One-Way Linear Excursion (Xmax)* 0.40 in / 10.0 mm
  • Efficiency (1 W / 1 m)** 85.15 dB SPL
  • Effective Piston Area (Sd) 67.608 sq in / 0.0436 sq m
  • DC Resistance (Re) 3.514 Ω
  • Wall Thickness 0.75 in / 19 mm
  • Front Baffle Thickness 0.75 in / 19 mm
  • Volume (net int.) 0.65 cu ft / 18.41 L
  • External Width (W) 26.50 in / 673 mm
  • External Height (H) 14 in / 356 mm
  • External Depth (D) 5.50 in / 140 mm
  • Fc 54.41 Hz
  • Qtc 0.89
Mini FAQ-

1) Car AudioSecurity Ltd is a UK based company. ALL items are shipped form the UK.
2) All NEW Products come complete with at least 12 months warranty - Ex-Demo warranties differ.
3) All goods shipped are sent via an insured service to give you (and us) peace of mind - no extra hidden charges!
4) All products sold are GENUINE UK products bought direct from manufacturers
5) We have a dedicated returns & customer service department to help you with any problems you may have with your products -
6) Collection welcome for winning bidders from our Industry leading - state of the art showroom and demo-room for car audio & home AV products
7) All shipping charges are shown for mainland UK ONLY - Offshore destinations differ (i.e. RIO, IOM, IOW, NI etc etc)