Ground Zero GZUW 10SQ-D2 (2x2 Ohm)
10″ subwoofer · dual 2 Ω · 450 W RMS
The Ground Zero GZUW 10SQ-D2 (2x2 Ohm) is a 10″ subwoofer. With Qts 0.54 and EBP 72 it works both sealed and ported: sealed is tighter and smaller, ported is deeper and louder. Long excursion (Xmax 0.79″) — built for loud music and high power.
| Source | ground-zero-audio.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, 450 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) | Tight and punchy · 0.80 |
|---|---|
| Fc | 60 Hz |
| F3 (−3 dB, no cabin gain) | 56 Hz |
| Example box (outside) | 12 5/8″ × 12 5/8″ × 11 1/16″ |
Ported
deeper, louder| Tuning (Fb) | 38 Hz |
|---|---|
| Port | slot 1 3/16 × 14 5/16″, 33 9/16″ long |
| Port velocity at 450 W | 60 ft/s |
| F3 (−3 dB, no cabin gain) | 37 Hz |
| Example box (outside) | 16 1/16″ × 15 3/4″ × 13″ |
Deeper: 1.94 ft³ (55 L) tuned to 33 Hz, 31 1/2″ × 15 3/4″ × 12 1/8″ 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 2 Ω |
| RMS power | 450 W |
| Fs | 40.2 Hz |
| Qts | 0.54 |
| Qes | 0.56 |
| Qms | 13.6 |
| Vas | 0.77 ft³ |
| Re (one coil) | 2.01 Ω |
|---|---|
| Sd | 53.7 in² |
| Xmax | 0.79″ |
| Vd | 42.3 in³ calc. |
| Mms | 122 g calc. |
| BL | 10.5 T·m calc. |
| EBP | 72 — sealed or ported calc. |
| Sensitivity, 1 W / 1 m | 86 dB calc. |
Mounting dimensions
| Cutout diameter | 9 5/16″ |
|---|---|
| Mounting depth | 5 13/16″ |
| Overall diameter | 10 5/16″ |
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
- Tacoma Double 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
- 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 and ported box
- Club Car Precedent — under the rear seat sealed and ported box
Cone area (Sd) calculated from Fs, Vas and Mms: 53.7 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
- ground-zero-audio.com/en/gzuw-10sq-d2-2/
- ground-zero-audio.com/wp-content/uploads/GZUW-10SQ-D2_OM_AWV2.11.pdf
Other Ground Zero 10″ models
- Ground Zero GZHW 10-D2 FLAT (2x2 Ohm) 10″ · dual 2 Ω
- Ground Zero GZHW 10SPL-D2 FLAT (2x2 Ohm) 10″ · dual 2 Ω
- Ground Zero GZHW 10XSPL-D1 (2x1 Ohm) 10″ · dual 1 Ω
- Ground Zero GZHW 25-D1 (2x1 Ohm) 10″ · dual 1 Ω
- Ground Zero GZHW 25-D2 (2x2 Ohm) 10″ · dual 2 Ω
- Ground Zero GZHW 25SPL (2x1 Ohm) 10″ · dual 1 Ω
- Ground Zero GZHW 25X (2x2 Ohm) 10″ · dual 2 Ω
- Ground Zero GZHW 25XSPL-D1 (2x1 Ohm) 10″ · dual 1 Ω
- Ground Zero GZHW 25XSPL-D2 (2x2 Ohm) 10″ · dual 2 Ω
- Ground Zero GZIW 10SPL (2x2 Ohm) 10″ · dual 2 Ω
- Ground Zero GZIW 10XSPL-D2 (2x2 Ohm) 10″ · dual 2 Ω
- Ground Zero GZIW 250 (4 Ohm) 10″ · 4 Ω
Similar 10″ subwoofers from other brands
Close in Fs, Qts and Vas — a box of similar volume will suit them.
- DL Audio Barracuda 10 Flat (2+2) 0.67 ft³ sealed · 0.85 ft³ ported
- B2 Audio Riot FL10 0.53 ft³ sealed · 0.92 ft³ ported
- CT Sounds HYDRO-10 D4 0.53 ft³ sealed · 0.88 ft³ ported
- ARC Audio Black 10D4 V2 0.67 ft³ sealed · 0.85 ft³ ported
- Dayton Audio UMII10-22 0.78 ft³ sealed · 0.85 ft³ ported
- Kicker L7 10" 2-Ohm DVC (41L7102) 0.64 ft³ sealed · 1.77 ft³ ported
All 10″ subwoofers in our database →
FAQ
What box does the Ground Zero GZUW 10SQ-D2 (2x2 Ohm) need?
Recommended net volume: 0.64 ft³ sealed, 0.85 ft³ ported tuned to 38 Hz — for one sub in a sedan at 450 W. Fit the box to your space and amp in the free calculator, with plans and a cut sheet.
What are the Ground Zero GZUW 10SQ-D2 (2x2 Ohm) Thiele/Small specs?
Fs 40.2 Hz, Qts 0.54, Vas 0.77 ft³, Xmax 0.79″, Sd 53.7 in².
What is the Ground Zero GZUW 10SQ-D2 (2x2 Ohm) mounting depth?
Mounting depth is 5 13/16″, cutout diameter 9 5/16″. The inside depth of the box must exceed the mounting depth by at least 1″.
How much power does the Ground Zero GZUW 10SQ-D2 (2x2 Ohm) handle and how do I wire it?
RMS power rating: 450 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.
Is the Ground Zero GZUW 10SQ-D2 (2x2 Ohm) better sealed or ported?
EBP 72: both work — sealed 0.64 ft³ is tighter and smaller, ported 0.85 ft³ tuned to 38 Hz is deeper and louder.
What port does the Ground Zero GZUW 10SQ-D2 (2x2 Ohm) need?
For the 0.85 ft³ ported box tuned to 38 Hz: slot 1 3/16 × 14 5/16″, 33 9/16″ long, area 16.9 in²; or a round port Ø4 5/8″, ≈ 33 9/16″ long. Port air speed at 450 W: 60 ft/s.
What box do two Ground Zero GZUW 10SQ-D2 (2x2 Ohm) subs need?
Two subs need twice the volume: 1.27 ft³ sealed, or 1.70 ft³ ported at the same 38 Hz tuning with twice the port area. One shared chamber or one per sub — whatever fits your vehicle.