Magnum MBW 15-22DC

15″ subwoofer · dual 2 Ω · 1,300 W RMS

Fs 28 HzQts 0.44Vas 3.04 ft³

Recommended box

For a sedan, one sub, 1,300 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 volume1.31 ft³ (37 L)
Qtc0.80
Fc51 Hz
F3 (−3 dB, no cabin gain)48 Hz
Example box (outside)16 15/16″ × 16 15/16″ × 12 1/16″
Open sealed box in designer

Ported

Net volume4.31 ft³ (122 L)
Tuning (Fb)28 Hz
Portslot 3 9/16 × 16 5/16″, 39 7/16″ long
Port velocity at 1,300 W65 ft/s
F3 (−3 dB, no cabin gain)26 Hz
Example box (outside)31 1/2″ × 17 11/16″ × 22 5/8″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs28 Hz
Qts0.44
Qes0.47
Qms6.9
Vas3.04 ft³
Re (one coil)1.95 Ω
Sd120.2 in²
Xmax≈ 0.39″
Mms320 g calc.
BL15.3 T·m calc.
EBP60 — sealed or ported calc.
Sensitivity, 1 W / 1 m88 dB calc.

General

Size15″
Voice coilsdual 2 Ω
RMS power1,300 W

Mounting dimensions

Ø15 5/8″cutout Ø13 15/16″mounting depth 7 3/16″magnet Ø≈ 9 1/16″
Cutout diameter13 15/16″
Mounting depth7 3/16″
Overall diameter15 5/8″

Cone area (Sd) calculated from Fs, Vas and Mms: 120.2 in².

“≈” 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 Magnum 15″ models