CT Sounds MESO-12 D4

12″ subwoofer · dual 4 Ω · 1,500 W RMS

Fs 34 HzQts 0.40Vas 0.72 ft³Xmax 0.71″

Recommended box

For a sedan, one sub, 1,500 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 volume0.74 ft³ (21 L)
Qtc0.57
Fc48 Hz
F3 (−3 dB, no cabin gain)64 Hz
Example box (outside)14 3/16″ × 14 3/16″ × 10 7/16″
Open sealed box in designer

Ported

Net volume1.41 ft³ (40 L)
Tuning (Fb)29 Hz
Port2 round ports Ø2 1/2″, 20 5/8″ long
Port velocity at 1,500 W238 ft/s
F3 (−3 dB, no cabin gain)27 Hz
Example box (outside)23 7/8″ × 15 3/4″ × 10 7/16″
Open ported box in designer
2030405060801001502006066727884HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs34 Hz
Qts0.40
Qes0.47
Qms2.82
Vas0.72 ft³
Re (one coil)3.5 Ω
Sd73.1 in²
Xmax0.71″
Vd51.8 in³ calc.
Mms341 g calc.
BL23.3 T·m calc.
EBP72 — sealed or ported calc.
Sensitivity, 1 W / 1 m84.3 dB calc.

General

Size12″
Voice coilsdual 4 Ω
RMS power1,500 W

Mounting dimensions

Ø13″cutout Ø11 1/8″mounting depth 8″magnet Ø≈ 7 1/4″
Cutout diameter11 1/8″
Mounting depth8″
Overall diameter13″

“≈” 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 CT Sounds 12″ models