URAL Patriot 10 (4+4)
10″ subwoofer · dual 2 Ω · 1,200 W RMS
Fs 33.5 HzQts 0.44Vas 0.60 ft³Xmax 0.91″
Recommended box
For a sedan, one sub, 1,200 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
| Net volume | 0.46 ft³ (13 L) |
|---|---|
| Qtc | 0.66 |
| Fc | 51 Hz |
| F3 (−3 dB, no cabin gain) | 57 Hz |
| Example box (outside) | 12 3/16″ × 12 3/16″ × 9 3/16″ |
Ported
| Net volume | 0.99 ft³ (28 L) |
|---|---|
| Tuning (Fb) | 31 Hz |
| Port | round port Ø2 1/2″, 12 3/16″ long |
| Port velocity at 1,200 W | 362 ft/s |
| F3 (−3 dB, no cabin gain) | 29 Hz |
| Example box (outside) | 20 9/16″ × 15 3/4″ × 8 7/16″ |
Thiele/Small parameters
| Fs | 33.5 Hz |
|---|---|
| Qts | 0.44 |
| Qes | 0.48 |
| Qms | 4.94 |
| Vas | 0.60 ft³ |
| Re (one coil) | ≈ 1.7 Ω |
| Sd | 50.8 in² |
| Xmax | 0.91″ |
| Vd | 46 in³ calc. |
| Mms | 202 g calc. |
| BL | 12.3 T·m calc. |
| EBP | 70 — sealed or ported calc. |
| Sensitivity, 1 W / 1 m | 83.2 dB calc. |
General
| Size | 10″ |
|---|---|
| Voice coils | dual 2 Ω |
| RMS power | 1,200 W |
Mounting dimensions
| Cutout diameter | 9 1/8″ |
|---|---|
| Mounting depth | 5 7/8″ |
| Overall diameter | 10 7/16″ |
| Magnet diameter | 6 11/16″ |
Cone area (Sd) calculated from Fs, Vas and Mms: 50.8 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
- web.archive.org/web/20230528133725/https://ural-auto.ru/catalog/subwoofers/passi
- ural-auto.ru/catalog/subwoofers/passive-sub/patriot-10/
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