Sky High Car Audio BMX-10 D1
10″ subwoofer · dual 1 Ω · 2,000 W RMS
The Sky High Car Audio BMX-10 D1 is a 10″ subwoofer. With Qts 0.43 and EBP 73 it works both sealed and ported: sealed is tighter and smaller, ported is deeper and louder. Long excursion (Xmax 1.18″) — built for loud music and high power.
| 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 |
- Sd of 37 in² is unusual for a 10″ (typically 43.4–62 in²).
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| Bass character (Qtc) | Dry and tight · 0.52 |
|---|---|
| Fc | 40 Hz |
| F3 (−3 dB, no cabin gain) | 61 Hz |
| Example box (outside) | 12 5/8″ × 12 5/8″ × 10 7/16″ |
Ported
deeper, louder| Tuning (Fb) | 37 Hz |
|---|---|
| Port | slot 1 15/16 × 14 5/16″, 87 3/8″ long |
| Port velocity at 2,000 W | 75 ft/s |
| F3 (−3 dB, no cabin gain) | 32 Hz |
| Example box (outside) | 31 1/2″ × 15 3/4″ × 10 9/16″ |
The volume and tuning are the recommendation, but the port doesn’t fit this example box. Size the box and port in the designer.
Open ported box in designerDeeper: 0.71 ft³ (20 L) tuned to 27 Hz, 31 1/2″ × 15 3/4″ × 14 3/4″ outside — a bigger box with flatter deep bass. Open in the calculator
Projects with this subwoofer
Boxes that users designed and published: plans, cut sheet and response graph.
Thiele/Small parameters
| Size | 10″ |
|---|---|
| Voice coils | dual 1 Ω |
| RMS power | 2,000 W |
| Fs | 33.4 Hz |
| Qts | 0.43 |
| Qes | 0.457 |
| Qms | 6.67 |
| Vas | 0.29 ft³ |
| Re (one coil) | 1.16 Ω |
|---|---|
| Sd | 37 in² |
| Xmax | 1.18″ |
| Vd | 43.7 in³ calc. |
| Mms | 223 g calc. |
| BL | 10.9 T·m calc. |
| EBP | 73 — sealed or ported calc. |
| Sensitivity, 1 W / 1 m | 80.3 dB calc. |
Mounting dimensions
| Cutout diameter | 9 1/4″ |
|---|---|
| Mounting depth | 8″ |
| Overall diameter | 10 9/16″ |
Where it fits in a vehicle
Spots from our vehicle guides where the cutout, mounting depth and recommended box fit. The spot sizes are approximate — measure your own vehicle.
- F-150 SuperCrew — under the rear seat sealed and ported box
- Ram Crew Cab — under the rear seat sealed and ported box
- Bronco 4-door — behind the rear seat sealed and ported box
- Wrangler 4-door, hard top — behind the rear seat sealed and ported box
- Wrangler 4-door, soft top — behind the rear seat sealed and ported box
- Silverado / Sierra Crew Cab — under the rear seat sealed and ported box
- Polaris RZR / Ranger — under the seat sealed and ported box
- FJ Cruiser — behind the rear seat sealed and ported box
- El Camino 1978–87 — behind the seat sealed and ported box
- Cherokee XJ — cargo area, spare moved out sealed and ported box
- Excursion — behind the third row sealed and ported box
- Mustang 2015–2023 coupe — trunk sealed and ported box
- Challenger / Charger — trunk sealed and ported box
- Tesla Model 3 — well under the trunk floor sealed and ported box
- Club Car Precedent — under the rear seat sealed and ported box
“≈” 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
Voice coil versions
The same sub with different voice coils: the parameters are nearly the same — pick by your amp and wiring.
| Model | Voice coils | Re | Qes | Vas | Sealed | Ported |
|---|---|---|---|---|---|---|
| Sky High Car Audio BMX-10 D1 | dual 1 Ω | 1.16 Ω | 0.457 | 0.29 ft³ | 0.62 ft³ | 0.60 ft³ · 37 Hz |
| Sky High Car Audio BMX-10 D2 | dual 2 Ω | 2.46 Ω | 0.384 | 0.32 ft³ | 0.60 ft³ | 1.31 ft³ · 35 Hz |
Other Sky High Car Audio 10″ models
- 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.
- Sundown Audio SAv3-10 D4 0.60 ft³ sealed · 1.02 ft³ ported
- Sundown Audio Xv4-10 D2 0.87 ft³ sealed · 1.52 ft³ ported
- Audiobahn AW1008X 0.49 ft³ sealed · 0.85 ft³ ported
- Sundown Audio Zv6-10 D1 0.94 ft³ sealed · 1.52 ft³ ported
- Fi Audio Xv5 10 D1 0.49 ft³ sealed · 0.81 ft³ ported
- Fi Audio Xv5 10 D2 0.49 ft³ sealed · 1.48 ft³ ported
FAQ
What box does the Sky High Car Audio BMX-10 D1 need?
Recommended net volume: 0.62 ft³ sealed, 0.60 ft³ ported tuned to 37 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 D1 Thiele/Small specs?
Fs 33.4 Hz, Qts 0.43, Vas 0.29 ft³, Xmax 1.18″, Sd 37 in².
What is the Sky High Car Audio BMX-10 D1 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 D1 handle and how do I wire it?
RMS power rating: 2,000 W. Dual 1 Ω voice coils: series gives 2 Ω, parallel gives 0.5 Ω at the amp. Wiring for several subs and amp power — in the wiring calculator.
Is the Sky High Car Audio BMX-10 D1 better sealed or ported?
EBP 73: both work — sealed 0.62 ft³ is tighter and smaller, ported 0.60 ft³ tuned to 37 Hz is deeper and louder.
What port does the Sky High Car Audio BMX-10 D1 need?
For the 0.60 ft³ ported box tuned to 37 Hz: slot 1 15/16 × 14 5/16″, 87 3/8″ long, area 28.2 in²; or a round port Ø6″, ≈ 87 3/8″ long. Port air speed at 2,000 W: 75 ft/s.
What box do two Sky High Car Audio BMX-10 D1 subs need?
Two subs need twice the volume: 1.24 ft³ sealed, or 1.20 ft³ ported at the same 37 Hz tuning with twice the port area. One shared chamber or one per sub — whatever fits your vehicle.