Hertz Audio HX 300
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 4 Ω |
| Fs | 33 Hz |
| Qts | 0.47 |
| Qes | 0.53 |
| Qms | 4.4 |
| Vas | 49.62 L |
| Sd | 502 cm² |
| Xmax | 14 mm |
| Re | 2.82 Ω |
| Bl | 13.57 T·m |
| Mms | 167 g |
| Pe | 600 W |
| Sensitivity | 87.1 dB |
Alignment hint
| EBP | 62 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 39.3 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 |
|---|---|---|---|---|---|---|---|---|
| Focal SUB30KXE | 29 -4 | 0.454 -0.02 | 50 +0.38 | 10.8 -3.2 | 86.9 -0.2 | close | 8 Ω vs 4 Ω: amp load changes · Xmax 10.8 mm < 14 mm: lower excursion-limited SPL | + |
| Focal E30KX | 29 -4 | 0.454 -0.02 | 50 +0.38 | 10.7 -3.3 | 86.9 -0.2 | close | 8 Ω vs 4 Ω: amp load changes · Xmax 10.7 mm < 14 mm: lower excursion-limited SPL | + |
| Sony XS-GTR121L | 35 +2 | 0.46 -0.01 | 50 +0.38 | 8.4 -5.6 | 88.3 +1.2 | usable | 400 W vs 600 W: lower power handling · Xmax 8.4 mm < 14 mm: lower excursion-limited SPL | + |
| Audiomobile ELITE 2212 | 28 -5 | 0.48 +0.01 | 59.46 +9.84 | 12.7 -1.3 | 85.8 -1.3 | usable | Xmax 12.7 mm < 14 mm: lower excursion-limited SPL | + |
| Pioneer TS-W306DVC | 32.9 -0.1 | 0.478 +0.01 | 51.8 +2.18 | 8.3 -5.7 | 88.9 +1.8 | usable | 8 Ω vs 4 Ω: amp load changes · 400 W vs 600 W: lower power handling · Xmax 8.3 mm < 14 mm: lower excursion-limited SPL | + |
| Ground Zero GZRW 12XD-AL | 29 -4 | 0.451 -0.02 | 52 +2.38 | 9.2 -4.8 | 86.1 -1 | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 9.2 mm < 14 mm: lower excursion-limited SPL | + |
| Alpine SWR-1242D 12 | 29 -4 | 0.47 = | 45 -4.62 | 9.1 -4.9 | 85.7 -1.4 | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 9.1 mm < 14 mm: lower excursion-limited SPL | + |
| Earthquake Sound SUBZERO-12 | 26.8 -6.2 | 0.424 -0.05 | 58.1 +8.48 | 12.7 -1.3 | 86.2 -0.9 | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 12.7 mm < 14 mm: lower excursion-limited SPL | + |
| JBL W12GTI | 31.8 -1.2 | 0.508 +0.04 | 44.8 -4.82 | 9.9 -4.1 | 90.1 +3 | usable | Xmax 9.9 mm < 14 mm: lower excursion-limited SPL | + |
| JBL W12GTi MKII | 31.8 -1.2 | 0.508 +0.04 | 44.8 -4.82 | 9.9 -4.1 | 90.1 +3 | usable | Xmax 9.9 mm < 14 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the HX 300 →
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.