Diamond M3101
10″ subwoofer · 4 Ω · 175 W RMS
| Source | web.archive.org · manufacturer data |
|---|---|
| Checked against source | October 2026 |
| Thiele/Small parameters | not in the spec sheet: Re — typical value for the size used |
| Mounting dimensions | 3 of 4 — missing: magnet diameter; the designer will use an estimate |
Recommended box
For a sedan, one sub, 175 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 5/8″ × 12 5/8″ × 11 9/16″ |
Ported
deeper, louder| Tuning (Fb) | 33 Hz |
|---|---|
| Port | slot 1 9/16 × 14 5/16″, 37 3/8″ long |
| Port velocity at 175 W | 33 ft/s |
| F3 (−3 dB, no cabin gain) | 33 Hz |
| Example box (outside) | 31 1/2″ × 15 3/4″ × 9 3/4″ |
Deeper: 2.05 ft³ (58 L) tuned to 31 Hz, 31 1/2″ × 15 3/4″ × 11 13/16″ 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 | 4 Ω |
| RMS power | 175 W |
| Fs | 30 Hz |
| Qts | 0.43 |
| Qes | 0.45 |
| Qms | 9 |
| Vas | 1.67 ft³ |
| Re | ≈ 3.4 Ω |
|---|---|
| Sd | 52.7 in² |
| Xmax | 0.35″ |
| Vd | 18.7 in³ calc. |
| Mms | 98 g calc. |
| BL | 11.8 T·m calc. |
| EBP | 67 — sealed or ported calc. |
| Sensitivity, 1 W / 1 m | 86.5 dB calc. |
Mounting dimensions
| Cutout diameter | 9 5/16″ |
|---|---|
| Mounting depth | 4 13/16″ |
| Overall diameter | 10 3/16″ |
“≈” 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 Diamond 10″ models
- Diamond CM310D2 10″ · dual 2 Ω
- Diamond CM310D4 10″ · dual 4 Ω
- Diamond D102 10″ · dual 2 Ω
- Diamond D104 10″ · dual 4 Ω
- Diamond D310D2 10″ · dual 2 Ω
- Diamond D310D4 10″ · dual 4 Ω
- Diamond D610D2 10″ · dual 2 Ω
- Diamond D610D4 10″ · dual 4 Ω
- Diamond D910D2 10″ · dual 2 Ω
- Diamond D910D4 10″ · dual 4 Ω
- Diamond DE102 10″ · dual 2 Ω
- Diamond DE104 10″ · dual 4 Ω
Similar 10″ subwoofers from other brands
Close in Fs, Qts and Vas — a box of similar volume will suit them.
- Gladen Zero 10 Pro (SVC 4 ohm) 0.81 ft³ sealed · 1.34 ft³ ported
- Ground Zero GZIW 250X (4 Ohm) 0.67 ft³ sealed · 1.24 ft³ ported
- Pyle PLWCH10D 0.64 ft³ sealed · 1.41 ft³ ported
- Ground Zero GZIW 250 (4 Ohm) 0.74 ft³ sealed · 1.38 ft³ ported
- Polk Audio EX10 (EX Series II) 0.74 ft³ sealed · 1.27 ft³ ported
- JBL GTO1004D 0.64 ft³ sealed · 1.20 ft³ ported
FAQ
What box does the Diamond M3101 need?
Recommended net volume: 0.67 ft³ sealed, 1.34 ft³ ported tuned to 33 Hz — for one sub in a sedan at 175 W. Fit the box to your space and amp in the free calculator, with plans and a cut sheet.
What are the Diamond M3101 Thiele/Small specs?
Fs 30 Hz, Qts 0.43, Vas 1.67 ft³, Xmax 0.35″, Sd 52.7 in².
What is the Diamond M3101 mounting depth?
Mounting depth is 4 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 Diamond M3101 handle and how do I wire it?
RMS power rating: 175 W. Wiring for several subs and amp power — in the wiring calculator.