hertz Hertz Audio SX380D
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 43 Hz |
| Qts | 0.651 |
| Qes | 0.7 |
| Qms | 9.3 |
| Vas | 45 L |
| Sd | 851 cm² |
| Xmax | 6.1 mm |
| Re | 4 Ω |
| Bl | 21.8 T·m |
| Mms | 309.1 g |
| Pe | 1000 W |
| Sensitivity | 92.1 dB |
Alignment hint
| EBP | 61 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 250.3 L |
EBP 50-100: works in either a sealed or ported 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 |
|---|---|---|---|---|---|---|---|---|
| Monacor RAPTOR 15 | 39 -4 | 0.696 +0.04 | 56 +11 | 7.4 +1.3 | 92 -0.1 | close | 4 Ω vs 8 Ω: amp load changes | + |
| Monacor RAPTOR 15 MK2 | 39 -4 | 0.696 +0.04 | 56 +11 | 7.4 +1.3 | 92 -0.1 | close | 4 Ω vs 8 Ω: amp load changes | + |
| MTX Audio T815-22 | 32.3 -10.7 | 0.635 -0.02 | 57 +12 | 6.1 = | 90 -2.1 | usable | 4 Ω vs 8 Ω: amp load changes · 600 W vs 1000 W: lower power handling | + |
| MTX Audio T612S-22 | 33.6 -9.4 | 0.602 -0.05 | 58.9 +13.9 | 7.4 +1.3 | 91.2 -0.9 | usable | 4 Ω vs 8 Ω: amp load changes · 600 W vs 1000 W: lower power handling | + |
| JBL 15SWV3.8 | 53.4 +10.4 | 0.52 -0.13 | 43.9 -1.1 | 11 +4.9 | 92.8 +0.7 | usable | 4 Ω vs 8 Ω: amp load changes | + |
| MTX Audio TX815 | 35 -8 | 0.508 -0.14 | 44.7 -0.3 | 9.6 +3.5 | 93.3 +1.2 | usable | 4 Ω vs 8 Ω: amp load changes | + |
| B&C 15BG76 | 44 +1 | 0.56 -0.09 | 68.4 +23.4 | 9.6 +3.5 | 93.4 +1.3 | usable | 500 W vs 1000 W: lower power handling | + |
| MTX Audio TH9515.44 | 31.9 -11.1 | 0.653 = | 70 +25 | 6.3 +0.2 | 93.3 +1.2 | usable | 2 Ω vs 8 Ω: amp load changes · 600 W vs 1000 W: lower power handling | + |
| Focal 40A | 41.3 -1.7 | 0.633 -0.02 | 74.6 +29.6 | 4.7 -1.4 | 94.5 +2.4 | usable | 4 Ω vs 8 Ω: amp load changes · 400 W vs 1000 W: lower power handling · Xmax 4.7 mm < 6.1 mm: lower excursion-limited SPL | + |
| Ground Zero GZRW 15XSPL D2 | 34.1 -8.9 | 0.59 -0.06 | 63.3 +18.3 | 11.3 +5.2 | 91.1 -1 | usable | 4 Ω vs 8 Ω: amp load changes | + |
Compare the closest 3 against the SX380D →
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.