DC Audio Level 2 M3 12 D4

12″ subwoofer · dual 4 Ω · 600 W RMS

Fs 33 HzQts 0.59Vas 1.08 ft³Xmax 0.87″

Recommended box

For a sedan, one sub, 600 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 volume1.34 ft³ (38 L)
Qtc0.80
Fc44 Hz
F3 (−3 dB, no cabin gain)42 Hz
Example box (outside)14 3/16″ × 14 3/16″ × 16 13/16″
Open sealed box in designer

Ported

Net volume2.90 ft³ (82 L)
Tuning (Fb)27 Hz
Portslot 2 3/8 × 14 5/16″, 38 1/16″ long
Port velocity at 600 W62 ft/s
F3 (−3 dB, no cabin gain)24 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 17 3/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs33 Hz
Qts0.59
Qes0.639
Qms8.46
Vas1.08 ft³
Re (one coil)≈ 3.4 Ω
Sd74.6 in²
Xmax0.87″
Vd64.6 in³ calc.
Mms249 g calc.
BL16.6 T·m calc.
EBP52 — sealed or ported calc.
Sensitivity, 1 W / 1 m84.4 dB calc.

General

Size12″
Voice coilsdual 4 Ω
RMS power600 W

Mounting dimensions

Ø12 1/2″cutout Ø11″mounting depth 6 1/8″magnet Ø≈ 7 1/8″
Cutout diameter11″
Mounting depth6 1/8″
Overall diameter12 1/2″

“≈” 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 DC Audio 12″ models