Triton Red Cross 8
8″ subwoofer · 4 Ω · 500 W RMS
Fs 39.8 HzQts 0.40Vas 0.19 ft³Xmax 0.63″
The published specs don’t add up:
- Sd of 23.8 in² is unusual for a 8″ (typically 26.4–40.3 in²).
Recommended box
For a sedan, one sub, 500 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 | 0.21 ft³ (6 L) |
|---|---|
| Qtc | 0.56 |
| Fc | 55 Hz |
| F3 (−3 dB, no cabin gain) | 75 Hz |
| Example box (outside) | 8 11/16″ × 8 11/16″ × 9″ |
Ported
| Net volume | 0.46 ft³ (13 L) |
|---|---|
| Tuning (Fb) | 31 Hz |
| Port | slot 1 15/16 × 14 5/16″, 166 9/16″ long |
| Port velocity at 500 W | 31 ft/s |
| F3 (−3 dB, no cabin gain) | 29 Hz |
| Example box (outside) | 31 1/2″ × 15 3/4″ × 15 5/16″ |
The volume and tuning are the recommendation, but the port doesn’t fit this example box. Size the box and port in the designer.
Open ported box in designerThiele/Small parameters
| Fs | 39.8 Hz |
|---|---|
| Qts | 0.40 |
| Qes | 0.42 |
| Qms | 11.05 |
| Vas | 0.19 ft³ |
| Re | 4 Ω |
| Sd | 23.8 in² |
| Xmax | 0.63″ |
| Vd | 15 in³ calc. |
| Mms | 100 g calc. |
| BL | 15.4 T·m calc. |
| EBP | 95 — sealed or ported calc. |
| Sensitivity, 1 W / 1 m | 81.1 dB calc. |
General
| Size | 8″ |
|---|---|
| Voice coils | 4 Ω |
| RMS power | 500 W |
Mounting dimensions
| Cutout diameter | ≈ 5 1/2″ |
|---|---|
| Mounting depth | ≈ 2 15/16″ |
| Magnet diameter | 5 1/4″ |
“≈” 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 Triton 8″ models
- Triton Sub Bass 8 8″ · 4 Ω