DD Audio 2512f D2

12″ subwoofer · dual 2 Ω · 800 W RMS

Fs 31.6 HzQts 0.80Vas 1.54 ft³Xmax 0.67″

Recommended box

For a sedan, one sub, 800 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)
Qtc1.10
Fc43 Hz
F3 (−3 dB, no cabin gain)34 Hz
Example box (outside)14 9/16″ × 14 9/16″ × 19 3/4″
Open sealed box in designer

Ported

Net volume2.93 ft³ (83 L)
Tuning (Fb)32 Hz
Portslot 2 9/16 × 14 5/16″, 27 11/16″ long
Port velocity at 800 W63 ft/s
F3 (−3 dB, no cabin gain)27 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 16 7/16″
Open ported box in designer
203040506080100150200667278849096HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs31.6 Hz
Qts0.80
Qes0.9
Qms7.32
Vas1.54 ft³
Re (one coil)≈ 1.7 Ω
Sd≈ 76 in²
Xmax0.67″
EBP35 — suits sealed calc.
Sensitivity, 1 W / 1 m83.9 dB calc.

General

Size12″
Voice coilsdual 2 Ω
RMS power800 W

Mounting dimensions

Ø12 11/16″cutout Ø11 3/8″mounting depth 6 7/8″magnet Ø≈ 7 3/8″
Cutout diameter11 3/8″
Mounting depth6 7/8″
Overall diameter12 11/16″

“≈” 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 DD Audio 12″ models