Audioque HDC315-A D1

15″ subwoofer · dual 1 Ω · 1,000 W RMS

Fs 38 HzQts 0.42Vas 2.49 ft³

Recommended box

For a sedan, one sub, 1,000 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 volume1.27 ft³ (36 L)
Qtc0.72
Fc65 Hz
F3 (−3 dB, no cabin gain)68 Hz
Example box (outside)17 5/16″ × 17 5/16″ × 11 5/16″
Open sealed box in designer

Ported

Net volume3.07 ft³ (87 L)
Tuning (Fb)38 Hz
Portslot 2 15/16 × 16 11/16″, 23 7/8″ long
Port velocity at 1,000 W65 ft/s
F3 (−3 dB, no cabin gain)36 Hz
Example box (outside)31 1/2″ × 18 1/8″ × 15 5/16″
Open ported box in designer
203040506080100150200667278849096HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs38 Hz
Qts0.42
Qes0.444
Qms7.41
Vas2.49 ft³
Re (one coil)≈ 0.85 Ω
Sd138 in²
Xmax≈ 0.39″
Mms279 g calc.
BL11.3 T·m calc.
EBP86 — sealed or ported calc.
Sensitivity, 1 W / 1 m91.4 dB calc.

General

Size15″
Voice coilsdual 1 Ω
RMS power1,000 W

Mounting dimensions

Ø≈ 15 1/4″cutout Ø14 1/16″mounting depth 8 7/8″magnet Ø8 11/16″
Cutout diameter14 1/16″
Mounting depth8 7/8″
Magnet diameter8 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 Audioque 15″ models