BOSS Audio P126DVC

12″ subwoofer · dual 4 Ω · 1,150 W RMS

Fs 31 HzQts 0.52Vas 2.47 ft³Xmax 0.31″

Recommended box

For a sedan, one sub, 1,150 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 volume1.73 ft³ (49 L)
Qtc0.81
Fc48 Hz
F3 (−3 dB, no cabin gain)45 Hz
Example box (outside)14 3/16″ × 14 3/16″ × 20 15/16″
Open sealed box in designer

Ported

Net volume2.93 ft³ (83 L)
Tuning (Fb)33 Hz
Portslot 3 1/8 × 14 5/16″, 32 1/4″ long
Port velocity at 1,150 W64 ft/s
F3 (−3 dB, no cabin gain)30 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 17 9/16″
Open ported box in designer
203040506080100150200667278849096HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs31 Hz
Qts0.52
Qes0.577
Qms4.99
Vas2.47 ft³
Re (one coil)≈ 3.4 Ω
Sd≈ 76 in²
Xmax0.31″
EBP54 — sealed or ported calc.
Sensitivity, 1 W / 1 m87.6 dB calc.

General

Size12″
Voice coilsdual 4 Ω
RMS power1,150 W

Mounting dimensions

Ø12 5/8″cutout Ø11″mounting depth 6 3/4″magnet Ø≈ 7 1/8″
Cutout diameter11″
Mounting depth6 3/4″
Overall diameter12 5/8″

“≈” 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 BOSS Audio 12″ models