Audiobahn AW1571X

15″ subwoofer · 500 W RMS

19.9 HzFs, resonance
0.36Qts
10.24 ft³Vas
0.43″Xmax
500 WRMS
Sourceweb.archive.org · manufacturer data
Checked against sourceOctober 2026
Thiele/Small parametersnot in the spec sheet: Sd — typical value for the size used
Mounting dimensions3 of 4 — missing: magnet diameter; the designer will use an estimate

Recommended box

For a sedan, one sub, 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

smaller, tighter
2.61 ft³ (74 L)
Net volume
Bass character (Qtc)Tight and punchy · 0.80
Fc44 Hz
F3 (−3 dB, no cabin gain)42 Hz
Example box (outside)31 1/2″ × 17 11/16″ × 11 1/4″
Open sealed box in designer

Ported

deeper, louder
3.67 ft³ (104 L)
Net volume
Tuning (Fb)30 Hz
Portslot 1 3/4 × 16 5/16″, 18 15/16″ long
Port velocity at 500 W60 ft/s
F3 (−3 dB, no cabin gain)31 Hz
Example box (outside)31 1/2″ × 17 11/16″ × 16 7/16″
Open ported box in designer

Deeper: 4.80 ft³ (136 L) tuned to 29 Hz, 31 1/2″ × 17 11/16″ × 20 5/8″ outside — a bigger box with flatter deep bass. Open in the calculator

Where to buy Amazon
203040506080100150200667278849096HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Size15″
Voice coils—
RMS power500 W
Fs19.9 Hz
Qts0.36
Qes0.4
Qms3.6
Vas10.24 ft³
Re3.25 Ω
Sd≈ 124 in²
Xmax0.43″
EBP50 — suits sealed calc.
Sensitivity, 1 W / 1 m89.6 dB calc.

Mounting dimensions

Ø15 3/8″cutout Ø13 7/8″mounting depth 6 7/8″magnet Ø≈ 9″
Cutout diameter13 7/8″
Mounting depth6 7/8″
Overall diameter15 3/8″

“≈” 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 Audiobahn 15″ models

Similar 15″ subwoofers from other brands

Close in Fs, Qts and Vas — a box of similar volume will suit them.

FAQ

What box does the Audiobahn AW1571X need?

Recommended net volume: 2.61 ft³ sealed, 3.67 ft³ ported tuned to 30 Hz — for one sub in a sedan at 500 W. Fit the box to your space and amp in the free calculator, with plans and a cut sheet.

What are the Audiobahn AW1571X Thiele/Small specs?

Fs 19.9 Hz, Qts 0.36, Vas 10.24 ft³, Xmax 0.43″.

What is the Audiobahn AW1571X mounting depth?

Mounting depth is 6 7/8″, cutout diameter 13 7/8″. The inside depth of the box must exceed the mounting depth by at least 1″.

How much power does the Audiobahn AW1571X handle and how do I wire it?

RMS power rating: 500 W. Wiring for several subs and amp power — in the wiring calculator.