Sky High Car Audio BMX-10 D2

10″ subwoofer · dual 2 Ω · 2,000 W RMS

31.6 HzFs, resonance

0.36Qts

0.32 ft³Vas

1.18″Xmax

2,000 WRMS

Source	skyhighcaraudio.com · manufacturer data
Checked against source	October 2026
Thiele/Small parameters	complete
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

0.60 ft³ (17 L)

Net volume

Bass character (Qtc)	Dry and tight · 0.45
Fc	39 Hz
F3 (−3 dB, no cabin gain)	72 Hz
Example box (outside)	12 5/8″ × 12 5/8″ × 10 5/8″

Open sealed box in designer

Ported

deeper, louder

1.31 ft³ (37 L)

Net volume

Tuning (Fb)	35 Hz
Port	slot 1 3/4 × 14 5/16″, 38 1/4″ long
Port velocity at 2,000 W	122 ft/s
F3 (−3 dB, no cabin gain)	30 Hz
Example box (outside)	19 15/16″ × 15 3/4″ × 15 3/16″

At 2,000 W this example’s port will be noisy: air speed 122 ft/s, while the limit is 82 ft/s. It stays quiet up to about 900 W. Full power needs a port of at least 37.8 in², which means a bigger box than this example — size it in the designer.

Open ported box in designer

Deeper: 0.85 ft³ (24 L) tuned to 25 Hz, 31 1/2″ × 15 3/4″ × 15 3/16″ 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	10″
Voice coils	dual 2 Ω
RMS power	2,000 W
Fs	31.6 Hz
Qts	0.36
Qes	0.384
Qms	6.87
Vas	0.32 ft³

Re (one coil)	2.46 Ω
Sd	44.2 in²
Xmax	1.18″
Vd	52.2 in³ calc.
Mms	325 g calc.
BL	20.3 T·m calc.
EBP	82 — sealed or ported calc.
Sensitivity, 1 W / 1 m	80.7 dB calc.

Mounting dimensions

Cutout diameter	9 1/4″
Mounting depth	8″
Overall diameter	10 9/16″

The published Sd of 37 in² doesn't match Fs, Vas and Mms — using the calculated 44.2 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

skyhighcaraudio.com/sky-high-car-audio-bmx-series-10-subwoofer/

Other Sky High Car Audio 10″ models

Sky High Car Audio BMX-10 D1 10″ · dual 1 Ω
Sky High Car Audio FE-10 D2 10″ · dual 2 Ω
Sky High Car Audio FE-10 D4 10″ · dual 4 Ω
Sky High Car Audio FEX-10 D2 10″ · dual 2 Ω
Sky High Car Audio FEX-10 D4 10″ · dual 4 Ω
Sky High Car Audio FXB-10 D2 10″ · dual 2 Ω
Sky High Car Audio FXB-10 D4 10″ · dual 4 Ω

Similar 10″ subwoofers from other brands

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

Audiobahn AWT10X 0.57 ft³ sealed · 1.55 ft³ ported
Audiobahn AW1008X 0.49 ft³ sealed · 0.85 ft³ ported
Fi Audio Q10 D2 0.49 ft³ sealed · 1.41 ft³ ported
Fi Audio Q10 D1 0.49 ft³ sealed · 1.41 ft³ ported
Sundown Audio SAv3-10 D4 0.60 ft³ sealed · 1.02 ft³ ported
CT Sounds MESO-10 D2 0.55 ft³ sealed · 0.74 ft³ ported

FAQ

What box does the Sky High Car Audio BMX-10 D2 need?

Recommended net volume: 0.60 ft³ sealed, 1.31 ft³ ported tuned to 35 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 Sky High Car Audio BMX-10 D2 Thiele/Small specs?

Fs 31.6 Hz, Qts 0.36, Vas 0.32 ft³, Xmax 1.18″, Sd 44.2 in².

What is the Sky High Car Audio BMX-10 D2 mounting depth?

Mounting depth is 8″, cutout diameter 9 1/4″. The inside depth of the box must exceed the mounting depth by at least 1″.

How much power does the Sky High Car Audio BMX-10 D2 handle and how do I wire it?

RMS power rating: 2,000 W. Dual 2 Ω voice coils: series gives 4 Ω, parallel gives 1 Ω at the amp. Wiring for several subs and amp power — in the wiring calculator.