DC Audio Level 5 M5 15 D2

15″ subwoofer · dual 2 Ω · 3,500 W RMS

Fs 30.7 HzQts 0.29Vas 1.73 ft³Xmax 1.34″

Recommended box

For a sedan, one sub, 3,500 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 volume1.70 ft³ (48 L)
Qtc0.42
Fc44 Hz
F3 (−3 dB, no cabin gain)89 Hz
Example box (outside)17 5/16″ × 17 5/16″ × 14 3/16″
Open sealed box in designer

Ported

Net volume2.33 ft³ (66 L)
Tuning (Fb)28 Hz
Portround port Ø3″, 8 1/8″ long
Port velocity at 3,500 W684 ft/s
F3 (−3 dB, no cabin gain)64 Hz
Example box (outside)22 1/16″ × 18 1/8″ × 14 3/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs30.7 Hz
Qts0.29
Qes0.31
Qms5.59
Vas1.73 ft³
Re (one coil)≈ 1.7 Ω
Sd122.6 in²
Xmax1.34″
Vd164.1 in³ calc.
Mms486 g calc.
BL22.7 T·m calc.
EBP99 — sealed or ported calc.
Sensitivity, 1 W / 1 m88.6 dB calc.

General

Size15″
Voice coilsdual 2 Ω
RMS power3,500 W

Mounting dimensions

Ø15 11/16″cutout Ø14 1/4″mounting depth 11 3/4″magnet Ø≈ 9 1/4″
Cutout diameter14 1/4″
Mounting depth11 3/4″
Overall diameter15 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 DC Audio 15″ models