Fi Audio Q10 D1
10″ subwoofer · dual 1 Ω · 1,500 W RMS
The Fi Audio Q10 D1 is a 10″ subwoofer. With Qts 0.35 and EBP 92 it works both sealed and ported: sealed is tighter and smaller, ported is deeper and louder. Long excursion (Xmax 1.10″) — built for loud music and high power.
| Source | web.archive.org · 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, 1,500 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| Bass character (Qtc) | Dry and tight · 0.48 |
|---|---|
| Fc | 46 Hz |
| F3 (−3 dB, no cabin gain) | 78 Hz |
| Example box (outside) | 12 5/8″ × 12 5/8″ × 9 1/8″ |
Ported
deeper, louder| Tuning (Fb) | 38 Hz |
|---|---|
| Port | slot 2 9/16 × 14 5/16″, 43 1/16″ long |
| Port velocity at 1,500 W | 81 ft/s |
| F3 (−3 dB, no cabin gain) | 33 Hz |
| Example box (outside) | 31 1/2″ × 15 3/4″ × 11 13/16″ |
Deeper: 0.92 ft³ (26 L) tuned to 35 Hz, 17 15/16″ × 15 3/4″ × 9 1/16″ 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 | 1,500 W |
| Fs | 34.1 Hz |
| Qts | 0.35 |
| Qes | 0.37 |
| Qms | 7.31 |
| Vas | 0.42 ft³ |
| Re (one coil) | 0.7 Ω |
|---|---|
| Sd | 48.1 in² |
| Xmax | 1.10″ |
| Vd | 53 in³ calc. |
| Mms | 251 g calc. |
| BL | 10.1 T·m calc. |
| EBP | 92 — sealed or ported calc. |
| Sensitivity, 1 W / 1 m | 83 dB calc. |
Mounting dimensions
| Cutout diameter | 9 1/4″ |
|---|---|
| Mounting depth | 6 1/2″ |
| Overall diameter | 11″ |
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
- Tacoma Double Cab — under the rear seat sealed 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
- Spare tire well sealed box
- Polaris RZR / Ranger — under the seat sealed box
- Can-Am — under the seat sealed 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 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 |
|---|---|---|---|---|---|---|
| Fi Audio Q10 D1 | dual 1 Ω | 0.7 Ω | 0.37 | 0.42 ft³ | 0.49 ft³ | 1.41 ft³ · 38 Hz |
| Fi Audio Q10 D2 | dual 2 Ω | 1.4 Ω | 0.37 | 0.42 ft³ | 0.49 ft³ | 1.41 ft³ · 37 Hz |
Other Fi Audio 10″ models
- Fi Audio Alpha v1 10 S1 10″ · 1 Ω
- Fi Audio Alpha v1 10 S2 10″ · 2 Ω
- Fi Audio Alpha v1 10 S4 10″ · 4 Ω
- Fi Audio Alpha v2 10 S2 10″ · 2 Ω
- Fi Audio Alpha v2 10 S4 10″ · 4 Ω
- Fi Audio Alpha v2.1 10 S2 10″ · 2 Ω
- Fi Audio Alpha v2.1 10 S4 10″ · 4 Ω
- Fi Audio BL-NEO 10 D1 10″ · dual 1 Ω
- Fi Audio BL-NEO 10 D2 10″ · dual 2 Ω
- Fi Audio BL10 D1 10″ · dual 1 Ω
- Fi Audio BL10 D2 10″ · dual 2 Ω
- Fi Audio BL10v3 D1 10″ · dual 1 Ω
Similar 10″ subwoofers from other brands
Close in Fs, Qts and Vas — a box of similar volume will suit them.
- CT Sounds MESO-10 D2 0.55 ft³ sealed · 0.74 ft³ ported
- DD Audio 710g D2 0.62 ft³ sealed · 1.38 ft³ ported
- DD Audio 710g D4 0.62 ft³ sealed · 1.38 ft³ ported
- Sundown Audio SAv2-10 D4 0.53 ft³ sealed · 1.02 ft³ ported
- Rockville PUNISHER 10D2 0.58 ft³ sealed · 1.52 ft³ ported
- Sundown Audio Zv4-10 D1 0.79 ft³ sealed · 1.73 ft³ ported
FAQ
What box does the Fi Audio Q10 D1 need?
Recommended net volume: 0.49 ft³ sealed, 1.41 ft³ ported tuned to 38 Hz — for one sub in a sedan at 1,500 W. Fit the box to your space and amp in the free calculator, with plans and a cut sheet.
What are the Fi Audio Q10 D1 Thiele/Small specs?
Fs 34.1 Hz, Qts 0.35, Vas 0.42 ft³, Xmax 1.10″, Sd 48.1 in².
What is the Fi Audio Q10 D1 mounting depth?
Mounting depth is 6 1/2″, 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 Fi Audio Q10 D1 handle and how do I wire it?
RMS power rating: 1,500 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 Fi Audio Q10 D1 better sealed or ported?
EBP 92: both work — sealed 0.49 ft³ is tighter and smaller, ported 1.41 ft³ tuned to 38 Hz is deeper and louder.
What port does the Fi Audio Q10 D1 need?
For the 1.41 ft³ ported box tuned to 38 Hz: slot 2 9/16 × 14 5/16″, 43 1/16″ long, area 36.7 in²; or a round port Ø6 13/16″, ≈ 43 1/16″ long. Port air speed at 1,500 W: 81 ft/s.
What box do two Fi Audio Q10 D1 subs need?
Two subs need twice the volume: 0.99 ft³ sealed, or 2.83 ft³ ported at the same 38 Hz tuning with twice the port area. One shared chamber or one per sub — whatever fits your vehicle.