Earthquake Sound DBXi-15D
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 13.6 Hz |
| Qts | 0.753 |
| Qes | 1.047 |
| Qms | 2.679 |
| Vas | 142.9 L |
| Sd | 890 cm² |
| Xmax | 13.5 mm |
| Re | 6.6 Ω |
| Bl | 24 T·m |
| Mms | 1067.8 g |
| Pe | 750 W |
| Sensitivity | 78.2 dB |
Alignment hint
| EBP | 13 · sealed |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | Qts too high |
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 +10.1 | 0.62 -0.13 | 136.6 -6.3 | 17.2 +3.7 | 87.2 +9 | risky | + | |
| Rockford Fosgate P3D4-15 | 22.4 +8.8 | 0.566 -0.19 | 155.8 +12.9 | 11 -2.5 | 87.3 +9.1 | risky | Xmax 11 mm < 13.5 mm: lower excursion-limited SPL | + |
| Rockford Fosgate P2D4-15 | 20.9 +7.3 | 0.655 -0.1 | 219.6 +76.7 | 11.3 -2.2 | 87.3 +9.1 | risky | 400 W vs 750 W: lower power handling · Xmax 11.3 mm < 13.5 mm: lower excursion-limited SPL | + |
| Sono Concept Plus E07094D | 25 +11.4 | 0.796 +0.04 | 135.3 -7.6 | 6.1 -7.4 | 85.9 +7.7 | risky | 200 W vs 750 W: lower power handling · Xmax 6.1 mm < 13.5 mm: lower excursion-limited SPL | + |
| Earthquake Sound DB15 | 23 +9.4 | 0.968 +0.21 | 95.4 -47.5 | 11.1 -2.4 | 86.1 +7.9 | risky | 4 Ω vs 8 Ω: amp load changes · Xmax 11.1 mm < 13.5 mm: lower excursion-limited SPL | + |
| Rockford Fosgate P115S4 | 24 +10.4 | 0.62 -0.13 | 172 +29.1 | 8 -5.5 | 87.3 +9.1 | risky | 4 Ω vs 8 Ω: amp load changes · 200 W vs 750 W: lower power handling · Xmax 8 mm < 13.5 mm: lower excursion-limited SPL | + |
| Dayton Audio IB385-8 | 21.5 +7.9 | 0.588 -0.17 | 248.9 +106 | 12.4 -1.1 | 89.8 +11.6 | risky | 350 W vs 750 W: lower power handling · Xmax 12.4 mm < 13.5 mm: lower excursion-limited SPL | + |
| AE Speakers IB15 | 16 +2.4 | 0.7 -0.05 | 439 +296.1 | 9.3 -4.2 | 87.2 +9 | risky | 300 W vs 750 W: lower power handling · Xmax 9.3 mm < 13.5 mm: lower excursion-limited SPL | + |
| AE Speakers IB15-8 | 16 +2.4 | 0.7 -0.05 | 439 +296.1 | 9.3 -4.2 | 87.2 +9 | risky | 300 W vs 750 W: lower power handling · Xmax 9.3 mm < 13.5 mm: lower excursion-limited SPL | + |
| Dayton Audio TIT400C | 24.2 +10.6 | 0.483 -0.27 | 154.3 +11.4 | 13.3 -0.2 | 91.5 +13.3 | risky | 4 Ω vs 8 Ω: amp load changes · Xmax 13.3 mm < 13.5 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the DBXi-15D →
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.