Lanzar OPTI1532D

15″ subwoofer · dual 2 Ω · 1,300 W RMS

Fs 25 HzQts 0.59Vas 3.15 ft³Xmax 0.75″

Recommended box

For a sedan, one sub, 1,300 W. It’s the same math as the designer’s step-by-step mode, where you can fit the box to your space, vehicle and amp and get plans, a cut sheet and DXF.

Sealed

Net volume2.83 ft³ (80 L)
Qtc0.85
Fc36 Hz
F3 (−3 dB, no cabin gain)33 Hz
Example box (outside)31 1/2″ × 18 1/8″ × 11 3/4″
Open sealed box in designer

Ported

Net volume4.80 ft³ (136 L)
Tuning (Fb)26 Hz
Portslot 3 3/8 × 16 11/16″, 39 13/16″ long
Port velocity at 1,300 W63 ft/s
F3 (−3 dB, no cabin gain)23 Hz
Example box (outside)31 1/2″ × 18 1/8″ × 23 3/4″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs25 Hz
Qts0.59
Qes0.66
Qms5.15
Vas3.15 ft³
Re (one coil)2 Ω
Sd≈ 124 in²
Xmax0.75″
EBP38 — suits sealed calc.
Sensitivity, 1 W / 1 m85.3 dB calc.

General

Size15″
Voice coilsdual 2 Ω
RMS power1,300 W

Mounting dimensions

Ø≈ 15 3/16″cutout ≈ Ø14″mounting depth ≈ 7 1/16″magnet Ø≈ 9 1/16″
Cutout diameter≈ 14″
Mounting depth≈ 7 1/16″

“≈” means the value isn’t in the spec sheet and a typical value for the size is used; “calc.” means it’s calculated from the published parameters. Check the manufacturer’s spec sheet before you build.

Data sources

Other Lanzar 15″ models