Magnum MLW 10-22SM
10″ subwoofer · dual 2 Ω · 300 W RMS
Fs 38.6 HzQts 0.39Vas 0.92 ft³
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
| Net volume | 0.46 ft³ (13 L) |
|---|---|
| Qtc | 0.67 |
| Fc | 67 Hz |
| F3 (−3 dB, no cabin gain) | 74 Hz |
| Example box (outside) | 12 5/8″ × 12 5/8″ × 8 5/8″ |
Ported
| Net volume | 0.99 ft³ (28 L) |
|---|---|
| Tuning (Fb) | 40 Hz |
| Port | 2 round ports Ø2 1/2″, 15″ long |
| Port velocity at 300 W | 98 ft/s |
| F3 (−3 dB, no cabin gain) | 38 Hz |
| Example box (outside) | 24 3/4″ × 15 3/4″ × 7 1/2″ |
Thiele/Small parameters
| Fs | 38.6 Hz |
|---|---|
| Qts | 0.39 |
| Qes | 0.427 |
| Qms | 4.31 |
| Vas | 0.92 ft³ |
| Re (one coil) | 1.85 Ω |
| Sd | 51.8 in² |
| Xmax | ≈ 0.39″ |
| Mms | 103 g calc. |
| BL | 10.4 T·m calc. |
| EBP | 90 — sealed or ported calc. |
| Sensitivity, 1 W / 1 m | 87.5 dB calc. |
General
| Size | 10″ |
|---|---|
| Voice coils | dual 2 Ω |
| RMS power | 300 W |
Mounting dimensions
| Cutout diameter | 9 1/4″ |
|---|---|
| Mounting depth | 5 1/16″ |
| Overall diameter | 10 13/16″ |
Cone area (Sd) calculated from Fs, Vas and Mms: 51.8 in².
Judging by its value, the published Re is for both coils in series — converted to per coil.
“≈” 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.