Diamond D104
10″ subwoofer · dual 4 Ω · 200 W RMS
| Source | web.archive.org · manufacturer data |
|---|---|
| Checked against source | October 2026 |
| Thiele/Small parameters | complete |
| Mounting dimensions | 3 of 4 — missing: magnet diameter; the designer will use an estimate |
Recommended box
For a sedan, one sub, 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
smaller, tighter| Bass character (Qtc) | Tight and punchy · 0.81 |
|---|---|
| Fc | 46 Hz |
| F3 (−3 dB, no cabin gain) | 44 Hz |
| Example box (outside) | 12 3/16″ × 12 3/16″ × 14 7/16″ |
Ported
deeper, louder| Tuning (Fb) | 31 Hz |
|---|---|
| Port | slot 1 3/16 × 14 5/16″, 38 1/4″ long |
| Port velocity at 200 W | 38 ft/s |
| F3 (−3 dB, no cabin gain) | 31 Hz |
| Example box (outside) | 31 1/2″ × 15 3/4″ × 8 1/2″ |
Deeper: 1.91 ft³ (54 L) tuned to 29 Hz, 31 1/2″ × 15 3/4″ × 11 3/4″ 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 4 Ω |
| RMS power | 200 W |
| Fs | 28 Hz |
| Qts | 0.49 |
| Qes | 0.57 |
| Qms | 3.3 |
| Vas | 1.42 ft³ |
| Re (one coil) | 3.2 Ω |
|---|---|
| Sd | 49.6 in² |
| Xmax | 0.32″ |
| Vd | 15.8 in³ calc. |
| Mms | 117 g calc. |
| BL | 10.7 T·m calc. |
| EBP | 49 — suits sealed calc. |
| Sensitivity, 1 W / 1 m | 83.9 dB calc. |
Mounting dimensions
| Cutout diameter | 9 1/8″ |
|---|---|
| Mounting depth | 5 3/16″ |
| Overall diameter | 10 9/16″ |
“≈” 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 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
- Diamond H102 10″ · dual 2 Ω
Similar 10″ subwoofers from other brands
Close in Fs, Qts and Vas — a box of similar volume will suit them.
- Infinity Reference 1052W 0.71 ft³ sealed · 1.13 ft³ ported
- Cerwin-Vega Mobile V102DV2 (Vega 10" DVC 2ohm) 0.71 ft³ sealed · 1.27 ft³ ported
- Soundstream RFW-10 0.85 ft³ sealed · 1.13 ft³ ported
- Kicker CompRT 10" 2-Ohm DVC (48CWRT102) 0.74 ft³ sealed · 0.99 ft³ ported
- Audison Prima APS 10 D (DVC 4+4 ohm) 1.02 ft³ sealed · 1.17 ft³ ported
- Rockford Fosgate Punch P1S4-10 0.95 ft³ sealed · 1.27 ft³ ported
FAQ
What box does the Diamond D104 need?
Recommended net volume: 0.81 ft³ sealed, 1.13 ft³ ported tuned to 31 Hz — for one sub in a sedan at 200 W. Fit the box to your space and amp in the free calculator, with plans and a cut sheet.
What are the Diamond D104 Thiele/Small specs?
Fs 28 Hz, Qts 0.49, Vas 1.42 ft³, Xmax 0.32″, Sd 49.6 in².
What is the Diamond D104 mounting depth?
Mounting depth is 5 3/16″, cutout diameter 9 1/8″. The inside depth of the box must exceed the mounting depth by at least 1″.
How much power does the Diamond D104 handle and how do I wire it?
RMS power rating: 200 W. Dual 4 Ω voice coils: series gives 8 Ω, parallel gives 2 Ω at the amp. Wiring for several subs and amp power — in the wiring calculator.