CT Sounds MESO-15 D4

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

Fs 33 HzQts 0.45Vas 1.86 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 volume1.13 ft³ (32 L)
Qtc0.73
Fc54 Hz
F3 (−3 dB, no cabin gain)55 Hz
Example box (outside)16 15/16″ × 16 15/16″ × 10 13/16″
Open sealed box in designer

Ported

Net volume2.83 ft³ (80 L)
Tuning (Fb)31 Hz
Portslot 3 1/8 × 16 5/16″, 44 5/8″ long
Port velocity at 1,500 W63 ft/s
F3 (−3 dB, no cabin gain)29 Hz
Example box (outside)31 1/2″ × 17 11/16″ × 17 7/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs33 Hz
Qts0.45
Qes0.53
Qms3
Vas1.86 ft³
Re (one coil)3.5 Ω
Sd120.8 in²
Xmax0.71″
Vd85.6 in³ calc.
Mms381 g calc.
BL22.8 T·m calc.
EBP62 — sealed or ported calc.
Sensitivity, 1 W / 1 m87.5 dB calc.

General

Size15″
Voice coilsdual 4 Ω
RMS power1,500 W

Mounting dimensions

Ø15 9/16″cutout Ø13 3/4″mounting depth 8 5/16″magnet Ø≈ 8 15/16″
Cutout diameter13 3/4″
Mounting depth8 5/16″
Overall diameter15 9/16″

“≈” 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 CT Sounds 15″ models