Morel Ultimo 104 (SVC 4 ohm)
10″ subwoofer · 4 Ω · 1,000 W RMS
Fs 29 HzQts 0.42Vas 1.22 ft³Xmax 0.49″
The published specs don’t add up:
- Fs, Vas and Sd don't match the moving mass of 115 g (they give 148 g) — one of the spec sheet values is probably wrong.
Recommended box
For a sedan, one sub, 1,000 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 | 0.49 ft³ (14 L) |
|---|---|
| Qtc | 0.77 |
| Fc | 54 Hz |
| F3 (−3 dB, no cabin gain) | 53 Hz |
| Example box (outside) | 12 3/16″ × 12 3/16″ × 9 11/16″ |
Ported
| Net volume | 1.48 ft³ (42 L) |
|---|---|
| Tuning (Fb) | 30 Hz |
| Port | slot 1 9/16 × 14 5/16″, 41 1/4″ long |
| Port velocity at 1,000 W | 78 ft/s |
| F3 (−3 dB, no cabin gain) | 28 Hz |
| Example box (outside) | 31 1/2″ × 15 3/4″ × 10 9/16″ |
Thiele/Small parameters
| Fs | 29 Hz |
|---|---|
| Qts | 0.42 |
| Qes | 0.55 |
| Qms | 1.71 |
| Vas | 1.22 ft³ |
| Re | 3.7 Ω |
| Sd | 53.6 in² |
| Xmax | 0.49″ |
| Vd | 26.4 in³ calc. |
| Mms | 148 g calc. |
| BL | 13.5 T·m calc. |
| EBP | 53 — sealed or ported calc. |
| Sensitivity, 1 W / 1 m | 83.9 dB calc. |
General
| Size | 10″ |
|---|---|
| Voice coils | 4 Ω |
| RMS power | 1,000 W |
Mounting dimensions
| Cutout diameter | 9 3/16″ |
|---|---|
| Mounting depth | 5 1/2″ |
| Overall diameter | 10 3/8″ |
“≈” 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 Morel 10″ models
- Morel Primo 104 (SVC 4 ohm) 10″ · 4 Ω
- Morel Primo SL PSL 104 (SVC 4 ohm) 10″ · 4 Ω
- Morel Ultimo 102 (SVC 2 ohm) 10″ · 2 Ω
- Morel Ultimo PowerSlim PS104D (DVC 4+4 ohm) 10″ · dual 4 Ω
- Morel Ultimo SC 102 (SVC 2 ohm) 10″ · 2 Ω
- Morel Ultimo SC 104 (SVC 4 ohm) 10″ · 4 Ω
- Morel Ultimo Titanium 102 (SVC 2 ohm) 10″ · 2 Ω
- Morel Ultimo Titanium 104 (SVC 4 ohm) 10″ · 4 Ω