Rockford Fosgate P3D4-15
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 22.4 Hz |
| Qts | 0.566 |
| Qes | 0.64 |
| Qms | 4.9 |
| Vas | 155.8 L |
| Sd | 894 cm² |
| Xmax | 11 mm |
| Re | 6.4 Ω |
| Bl | 22.6 T·m |
| Mms | 363 g |
| Pe | 600 W |
| Sensitivity | 87.3 dB |
Alignment hint
| EBP | 35 · sealed |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 277.8 L |
EBP < 50: favours a sealed (closed) alignment.
Rules of thumb from T/S parameters only. Verify against a real simulation before cutting wood.
Substitute candidates
| Driver | Fs (Hz) | Qts | Vas (L) | Xmax (mm) | Sens (dB) | Fit | Notes | Compare |
|---|---|---|---|---|---|---|---|---|
| Soundstream R1-15 | 23.7 +1.3 | 0.62 +0.05 | 136.6 -19.2 | 17.2 +6.2 | 87.2 -0.1 | close | + | |
| Rockford Fosgate P1S4-15 | 23 +0.6 | 0.55 -0.02 | 191.5 +35.7 | 9 -2 | 87.3 = | close | 4 Ω vs 8 Ω: amp load changes · 250 W vs 600 W: lower power handling · Xmax 9 mm < 11 mm: lower excursion-limited SPL | + |
| Rockford Fosgate P1S2-15 | 23 +0.6 | 0.55 -0.02 | 191.5 +35.7 | 9 -2 | 87.4 +0.1 | close | 2 Ω vs 8 Ω: amp load changes · 250 W vs 600 W: lower power handling · Xmax 9 mm < 11 mm: lower excursion-limited SPL | + |
| Rockford Fosgate P115S4 | 24 +1.6 | 0.62 +0.05 | 172 +16.2 | 8 -3 | 87.3 = | usable | 4 Ω vs 8 Ω: amp load changes · 200 W vs 600 W: lower power handling · Xmax 8 mm < 11 mm: lower excursion-limited SPL | + |
| Powerbass M-1504 | 22 -0.4 | 0.442 -0.12 | 181.7 +25.9 | 11 = | 87.7 +0.4 | usable | 4 Ω vs 8 Ω: amp load changes · 425 W vs 600 W: lower power handling | + |
| Hertz Audio ES380.1 | 24.2 +1.8 | 0.52 -0.05 | 183 +27.2 | 9 -2 | 88.2 +0.9 | usable | 4 Ω vs 8 Ω: amp load changes · 450 W vs 600 W: lower power handling · Xmax 9 mm < 11 mm: lower excursion-limited SPL | + |
| Oxygen AIR2 380 | 22.7 +0.3 | 0.543 -0.02 | 202.2 +46.4 | 11.5 +0.5 | 91.6 +4.3 | usable | 4 Ω vs 8 Ω: amp load changes · 400 W vs 600 W: lower power handling | + |
| Dayton Audio TIT400C | 24.2 +1.8 | 0.483 -0.08 | 154.3 -1.5 | 13.3 +2.3 | 91.5 +4.2 | usable | 4 Ω vs 8 Ω: amp load changes | + |
| Rockford Fosgate P2D4-15 | 20.9 -1.5 | 0.655 +0.09 | 219.6 +63.8 | 11.3 +0.3 | 87.3 = | usable | 400 W vs 600 W: lower power handling | + |
| Ground Zero GZHW 38X | 22.6 +0.2 | 0.43 -0.14 | 147 -8.8 | 12.5 +1.5 | 90.3 +3 | usable | + |
Compare the closest 3 against the P3D4-15 →
Ranked on parameter similarity only (Qts, Fs, Vas, Xmax, sensitivity). Same nominal size required. A hint, not a simulation, model the swap before cutting or buying.
Used in enclosures (0)
No enclosure in the catalog uses this driver yet.