Audiopipe TS-CAR8
8″ subwoofer · 4 Ω · 150 W RMS
Fs 43 HzQts 0.43Vas 0.49 ft³Xmax 0.09″
The published specs don’t add up:
- The spec sheet's Qts 0.49 doesn't match its Qes and Qms (they give 0.43).
- Fs, Vas and Sd don't match the moving mass of 67 g (they give 94 g) — one of the spec sheet values is probably wrong.
Recommended box
For a sedan, one sub, 150 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 | 0.35 ft³ (10 L) |
|---|---|
| Qtc | 0.66 |
| Fc | 67 Hz |
| F3 (−3 dB, no cabin gain) | 75 Hz |
| Example box (outside) | 10 5/8″ × 10 5/8″ × 9 5/16″ |
Ported
| Net volume | 0.78 ft³ (22 L) |
|---|---|
| Tuning (Fb) | 39 Hz |
| Port | round port Ø3″, 13 11/16″ long |
| Port velocity at 150 W | 72 ft/s |
| F3 (−3 dB, no cabin gain) | 37 Hz |
| Example box (outside) | 20 9/16″ × 15 3/4″ × 7 1/16″ |
Thiele/Small parameters
| Fs | 43 Hz |
|---|---|
| Qts | 0.43 |
| Qes | 0.74 |
| Qms | 1 |
| Vas | 0.49 ft³ |
| Re | 3.6 Ω |
| Sd | 40.3 in² |
| Xmax | 0.09″ |
| Vd | 3.6 in³ calc. |
| Mms | 94 g calc. |
| BL | 11.1 T·m calc. |
| EBP | 58 — sealed or ported calc. |
| Sensitivity, 1 W / 1 m | 83.8 dB calc. |
General
| Size | 8″ |
|---|---|
| Voice coils | 4 Ω |
| RMS power | 150 W |
Mounting dimensions
| Cutout diameter | ≈ 7 5/16″ |
|---|---|
| Mounting depth | 4 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
- audiopipe.com/products/ts-car8-subwoofer
- cdn.shopify.com/s/files/1/0051/8478/2371/files/TS-CAR_manual.pdf?v=1753326672
Other Audiopipe 8″ models
- Audiopipe TS-FA800 8″ · dual 4 Ω