Diamond M6mkII 10D2
10″ subwoofer · dual 2 Ω
| Source | web.archive.org · manufacturer data |
|---|---|
| Checked against source | October 2026 |
| Thiele/Small parameters | complete |
| Mounting dimensions | 0 of 4 — missing: cutout, mounting depth, frame outer diameter, 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) | Flat and accurate · 0.66 |
|---|---|
| Fc | 46 Hz |
| F3 (−3 dB, no cabin gain) | 51 Hz |
| Example box (outside) | 12 3/16″ × 12 3/16″ × 9 3/16″ |
Ported
deeper, louder| Tuning (Fb) | 38 Hz |
|---|---|
| Port | slot 1 × 14 5/16″, 30 1/2″ long |
| Port velocity at 300 W | 68 ft/s |
| F3 (−3 dB, no cabin gain) | 32 Hz |
| Example box (outside) | 15″ × 15 3/4″ × 12 3/8″ |
Deeper: 0.95 ft³ (27 L) tuned to 35 Hz, 24 1/8″ × 15 3/4″ × 7 11/16″ 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 | dual 2 Ω |
| RMS power | — |
| Fs | 35.3 Hz |
| Qts | 0.51 |
| Qes | 0.55 |
| Qms | 7.01 |
| Vas | 0.31 ft³ |
| Re (one coil) | 1.95 Ω |
|---|---|
| Sd | 49 in² |
| Xmax | 0.70″ |
| Vd | 34.3 in³ calc. |
| Mms | 323 g calc. |
| BL | 15.9 T·m calc. |
| EBP | 64 — sealed or ported calc. |
| Sensitivity, 1 W / 1 m | 80.5 dB calc. |
Mounting dimensions
| Cutout diameter | ≈ 9 1/8″ |
|---|---|
| Mounting depth | ≈ 5 1/8″ |
“≈” 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 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.
- Sundown Audio SA Classic 10 D2 0.44 ft³ sealed · 1.02 ft³ ported
- Sundown Audio Xv2-10 D2 0.71 ft³ sealed · 0.88 ft³ ported
- CT Sounds STRATO-10 D4 0.51 ft³ sealed · 0.74 ft³ ported
- Sundown Audio Xv3-10 D2 0.76 ft³ sealed · 1.52 ft³ ported
- CT Sounds STRATO-10 D2 0.51 ft³ sealed · 0.74 ft³ ported
- Sundown Audio SA Classic 10 D4 0.44 ft³ sealed · 1.02 ft³ ported
FAQ
What box does the Diamond M6mkII 10D2 need?
Recommended net volume: 0.46 ft³ sealed, 0.78 ft³ ported tuned to 38 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 Diamond M6mkII 10D2 Thiele/Small specs?
Fs 35.3 Hz, Qts 0.51, Vas 0.31 ft³, Xmax 0.70″, Sd 49 in².