Powerbass M-1504
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 4 Ω |
| Fs | 22 Hz |
| Qts | 0.442 |
| Qes | 0.5 |
| Qms | 3.81 |
| Vas | 181.7 L |
| Sd | 767 cm² |
| Xmax | 11 mm |
| Re | 3.33 Ω |
| Bl | 14.86 T·m |
| Mms | 239.8 g |
| Pe | 425 W |
| Sensitivity | 87.7 dB |
Alignment hint
| EBP | 44 · sealed |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 116.5 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 |
|---|---|---|---|---|---|---|---|---|
| Ground Zero GZHW 38X | 22.6 +0.6 | 0.43 -0.01 | 147 -34.7 | 12.5 +1.5 | 90.3 +2.6 | close | 8 Ω vs 4 Ω: amp load changes | + |
| Dayton Audio MX15-22 | 21.7 -0.3 | 0.415 -0.03 | 146.1 -35.6 | 12.3 +1.3 | 90.1 +2.4 | close | + | |
| Sony XS-L151P5 | 22.2 +0.2 | 0.46 +0.02 | 195.9 +14.2 | 7 -4 | 88.2 +0.5 | close | Xmax 7 mm < 11 mm: lower excursion-limited SPL | + |
| GRS 15SSW-4HE | 20.7 -1.3 | 0.487 +0.04 | 196.6 +14.9 | 9.5 -1.5 | 89.8 +2.1 | usable | 8 Ω vs 4 Ω: amp load changes · 300 W vs 425 W: lower power handling · Xmax 9.5 mm < 11 mm: lower excursion-limited SPL | + |
| Hertz Audio ES380.1 | 24.2 +2.2 | 0.52 +0.08 | 183 +1.3 | 9 -2 | 88.2 +0.5 | usable | Xmax 9 mm < 11 mm: lower excursion-limited SPL | + |
| Dayton Audio RSS390HF-4 v2015 | 19.5 -2.5 | 0.429 -0.01 | 212 +30.3 | 12 +1 | 91.2 +3.5 | usable | + | |
| Rockford Fosgate P3D4-15 | 22.4 +0.4 | 0.566 +0.12 | 155.8 -25.9 | 11 = | 87.3 -0.4 | usable | 8 Ω vs 4 Ω: amp load changes | + |
| Rockford Fosgate P1S2-15 | 23 +1 | 0.55 +0.11 | 191.5 +9.8 | 9 -2 | 87.4 -0.3 | usable | 2 Ω vs 4 Ω: amp load changes · 250 W vs 425 W: lower power handling · Xmax 9 mm < 11 mm: lower excursion-limited SPL | + |
| Rockford Fosgate P1S4-15 | 23 +1 | 0.55 +0.11 | 191.5 +9.8 | 9 -2 | 87.3 -0.4 | usable | 250 W vs 425 W: lower power handling · Xmax 9 mm < 11 mm: lower excursion-limited SPL | + |
| TC Sounds LMS R15 | 23.6 +1.6 | 0.446 = | 123 -58.7 | 12.1 +1.1 | 90.2 +2.5 | usable | + |
Compare the closest 3 against the M-1504 →
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.