JL Audio 12TW3-D4 12 inch Shallow Mount Subwoofer 3.5" Mounting Depth: a 12-inch subwoofer rated for 400 watts RMS.
From the maker's spec sheet: Fs 26.46 Hz, Qts 0.531, Vas 48.73 L, Xmax 15.2 mm. These are the figures we design a box around, together with the space you have.
Recommended enclosure: 0.8 cubic feet sealed or 0.95 cubic feet ported. For a box sized to that figure and shaped to your vehicle, send this model in a custom order.
Match the amplifier to RMS power at the impedance the coils will present; peak power is not a number to plan around.
Questions about fit? Message us on WhatsApp.
Listed specifications
- 400W RMS 3.50 in Depth 15.2mm Xmax Dual 4-Ohm
- 12 Inches in 3.5 Inches of Depth
- 3.50 in Mounting Depth
- 26.46 Hz Resonant Freq
- Dual 4-Ohm | Qts 0.531 | Fs 26.46 Hz | Vas 48.73 L

