Audiobahn AW1508X

15″ subwoofer · 2,000 W RMS

21.7 HzFs, resonance

0.39Qts

2.40 ft³Vas

0.83″Xmax

2,000 WRMS

Source	web.archive.org · manufacturer data
Checked against source	October 2026
Thiele/Small parameters	not in the spec sheet: Sd — typical value for the size used
Mounting dimensions	3 of 4 — missing: magnet diameter; the designer will use an estimate

Recommended box

For a sedan, one sub, 2,000 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

smaller, tighter

1.15 ft³ (32.5 L)

Net volume

Bass character (Qtc)	Flat and accurate · 0.68
Fc	38 Hz
F3 (−3 dB, no cabin gain)	42 Hz
Example box (outside)	17 5/16″ × 17 5/16″ × 10 7/16″

Open sealed box in designer

Ported

deeper, louder

3.67 ft³ (104 L)

Net volume

Tuning (Fb)	30 Hz
Port	slot 4 5/16 × 16 11/16″, 51 7/16″ long
Port velocity at 2,000 W	65 ft/s
F3 (−3 dB, no cabin gain)	26 Hz
Example box (outside)	31 1/2″ × 18 1/8″ × 22 15/16″

Open ported box in designer

Deeper: 2.37 ft³ (67 L) tuned to 25 Hz, 31 1/2″ × 18 1/8″ × 14″ outside — a bigger box with flatter deep bass. Open in the calculator

Where to buy Amazon

Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Size	15″
Voice coils	—
RMS power	2,000 W
Fs	21.7 Hz
Qts	0.39
Qes	0.42
Qms	4.65

Vas	2.40 ft³
Re	1.05 Ω
Sd	≈ 124 in²
Xmax	0.83″
EBP	52 — sealed or ported calc.
Sensitivity, 1 W / 1 m	84.2 dB calc.

Mounting dimensions

Cutout diameter	14″
Mounting depth	8″
Overall diameter	15 1/2″

“≈” 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

web.archive.org/web/20041208210047/http://www.audiobahn.com/tech/2001/Audiobahn2

Other Audiobahn 15″ models

Audiobahn ALUM15N 15″ · dual 6 Ω
Audiobahn ALUM15Q 15″ · dual 6 Ω
Audiobahn ALUM15X 15″
Audiobahn AW150Q 15″
Audiobahn AW150T 15″ · 4 Ω
Audiobahn AW150XS 15″
Audiobahn AW151T 15″ · 4 Ω
Audiobahn AW152N 15″ · 4 Ω
Audiobahn AW152T 15″
Audiobahn AW1500N 15″
Audiobahn AW1500Q 15″
Audiobahn AW1500V 15″ · dual 4 Ω

Similar 15″ subwoofers from other brands

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

DL Audio Phoenix Sport 15 (1+1) 1.27 ft³ sealed · 3.67 ft³ ported
Diamond HXP152 1.36 ft³ sealed · 2.40 ft³ ported
Sky High Car Audio FMX-15 D2 1.48 ft³ sealed · 2.40 ft³ ported
Sundown Audio Zv4-15 D1 1.64 ft³ sealed · 3.46 ft³ ported
Pride MT 15 D2 1.13 ft³ sealed · 3.64 ft³ ported
Alpine SWR-1522D (Type-R) 1.25 ft³ sealed · 2.83 ft³ ported

FAQ

What box does the Audiobahn AW1508X need?

Recommended net volume: 1.15 ft³ sealed, 3.67 ft³ ported tuned to 30 Hz — for one sub in a sedan at 2,000 W. Fit the box to your space and amp in the free calculator, with plans and a cut sheet.

What are the Audiobahn AW1508X Thiele/Small specs?

Fs 21.7 Hz, Qts 0.39, Vas 2.40 ft³, Xmax 0.83″.

What is the Audiobahn AW1508X mounting depth?

Mounting depth is 8″, cutout diameter 14″. The inside depth of the box must exceed the mounting depth by at least 1″.

How much power does the Audiobahn AW1508X handle and how do I wire it?

RMS power rating: 2,000 W. Wiring for several subs and amp power — in the wiring calculator.