SPL Dynamics V-250D2
10″ subwoofer · dual 2 Ω · 300 W RMS
| 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, 300 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 | 56 Hz |
| F3 (−3 dB, no cabin gain) | 53 Hz |
| Example box (outside) | 12 3/16″ × 12 3/16″ × 10 3/4″ |
Ported
deeper, louder| Tuning (Fb) | 43 Hz |
|---|---|
| Port | 2 round ports Ø3″, 19 15/16″ long |
| Port velocity at 300 W | 66 ft/s |
| F3 (−3 dB, no cabin gain) | 39 Hz |
| Example box (outside) | 23 5/8″ × 15 3/4″ × 7 7/8″ |
Deeper: 1.84 ft³ (52 L) tuned to 30 Hz, 31 1/2″ × 15 3/4″ × 11 3/8″ 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 | 300 W |
| Fs | 32.1 Hz |
| Qts | 0.46 |
| Qes | 0.513 |
| Qms | 4.46 |
| Vas | 1.13 ft³ |
| Re (one coil) | 1.9 Ω |
|---|---|
| Sd | 51.8 in² |
| Xmax | 0.39″ |
| Vd | 20.4 in³ calc. |
| Mms | 122 g calc. |
| BL | 9.5 T·m calc. |
| EBP | 63 — sealed or ported calc. |
| Sensitivity, 1 W / 1 m | 85.1 dB calc. |
Mounting dimensions
| Cutout diameter | 9 3/16″ |
|---|---|
| Mounting depth | 5 7/16″ |
| Overall diameter | 10 7/8″ |
Cone area (Sd) calculated from Fs, Vas and Mms: 51.8 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
Other SPL Dynamics 10″ models
- SPL Dynamics PRO-10D2 MK3 10″ · dual 2 Ω
- SPL Dynamics PRO-10D2 MK4 10″ · dual 2 Ω
- SPL Dynamics PRO-10D4 MK3 10″ · dual 4 Ω
- SPL Dynamics PRO-10D4 MK4 10″ · dual 4 Ω
- SPL Dynamics PRO-250D2 10″ · dual 2 Ω
- SPL Dynamics SW-250D2 10″ · dual 2 Ω
- SPL Dynamics V-10S 10″ · 4 Ω
- SPL Dynamics V-10S4 10″ · 4 Ω
- SPL Dynamics V-250D4 10″ · dual 4 Ω
- SPL Dynamics V-250S4 10″ · 4 Ω
- SPL Dynamics XTR-250D2 10″ · dual 2 Ω
- SPL Dynamics XTR-250D4 10″ · dual 4 Ω
Similar 10″ subwoofers from other brands
Close in Fs, Qts and Vas — a box of similar volume will suit them.
- Polk Audio MM104 (Polk/MOMO) 0.57 ft³ sealed · 0.88 ft³ ported
- Rockford Fosgate Punch HE RFP3410 (2002) 0.49 ft³ sealed · 0.88 ft³ ported
- Kicker Solo-Baric L7S 10" 2-Ohm DVC (44L7S102) 0.60 ft³ sealed · 1.77 ft³ ported
- MTX Audio RT10-04 0.67 ft³ sealed · 0.92 ft³ ported
- JL Audio 10W3v3-4 0.67 ft³ sealed · 1.13 ft³ ported
- JL Audio 10W3v3-8 0.71 ft³ sealed · 1.13 ft³ ported
FAQ
What box does the SPL Dynamics V-250D2 need?
Recommended net volume: 0.57 ft³ sealed, 0.92 ft³ ported tuned to 43 Hz — for one sub in a sedan at 300 W. Fit the box to your space and amp in the free calculator, with plans and a cut sheet.
What are the SPL Dynamics V-250D2 Thiele/Small specs?
Fs 32.1 Hz, Qts 0.46, Vas 1.13 ft³, Xmax 0.39″, Sd 51.8 in².
What is the SPL Dynamics V-250D2 mounting depth?
Mounting depth is 5 7/16″, cutout diameter 9 3/16″. The inside depth of the box must exceed the mounting depth by at least 1″.
How much power does the SPL Dynamics V-250D2 handle and how do I wire it?
RMS power rating: 300 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.