Audax PR300T4
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 2 Ω |
| Fs | 50 Hz |
| Qts | 0.357 |
| Qes | 0.39 |
| Qms | 4.25 |
| Vas | 117 L |
| Sd | 563 cm² |
| Xmax | 4 mm |
| Re | 1.5 Ω |
| Bl | 6.8 T·m |
| Mms | 38.5 g |
| Pe | 350 W |
| Sensitivity | 105 dB |
Alignment hint
| EBP | 128 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 40 L |
EBP > 100: favours a ported (bass-reflex) 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 |
|---|---|---|---|---|---|---|---|---|
| 18 Sound 12W500 | 46 -4 | 0.36 = | 123 +6 | 4 = | 99.5 -5.5 | close | 8 Ω vs 2 Ω: amp load changes | + |
| 18 Sound 12W501 | 46 -4 | 0.369 +0.01 | 123 +6 | 4 = | 98.7 -6.3 | usable | 8 Ω vs 2 Ω: amp load changes | + |
| 18 Sound 12W500 | 49 -1 | 0.35 -0.01 | 101 -16 | 4 = | 98.5 -6.5 | usable | 4 Ω vs 2 Ω: amp load changes | + |
| Fane SOVEREIGN PRO 12-300 | 46 -4 | 0.35 -0.01 | 114 -3 | 4.5 +0.5 | 98.1 -6.9 | usable | 8 Ω vs 2 Ω: amp load changes | + |
| Supravox 285 GMF vp8 | 52.2 +2.2 | 0.349 -0.01 | 152.5 +35.5 | 4 = | 100.7 -4.3 | usable | 8 Ω vs 2 Ω: amp load changes · 70 W vs 350 W: lower power handling | + |
| Fane SOVEREIGN 12-300 v2014 | 46 -4 | 0.35 -0.01 | 110 -7 | 4.5 +0.5 | 98 -7 | usable | 8 Ω vs 2 Ω: amp load changes | + |
| B&C 12 HPL 64-4 v2015 | 50 = | 0.321 -0.04 | 92.3 -24.7 | 4 = | 101 -4 | usable | 4 Ω vs 2 Ω: amp load changes · 200 W vs 350 W: lower power handling | + |
| Faital PRO 12PR300 | 50 = | 0.36 = | 92.6 -24.4 | 4.92 +0.92 | 99 -6 | usable | 8 Ω vs 2 Ω: amp load changes | + |
| Supravox 285 GMF vp7 | 56.3 +6.3 | 0.369 +0.01 | 137.5 +20.5 | 3.8 -0.2 | 100.9 -4.1 | usable | 8 Ω vs 2 Ω: amp load changes · 70 W vs 350 W: lower power handling · Xmax 3.8 mm < 4 mm: lower excursion-limited SPL | + |
| Supravox 285 GMF vp4 | 50.1 +0.1 | 0.335 -0.02 | 151 +34 | 3.9 -0.1 | 100.2 -4.8 | usable | 8 Ω vs 2 Ω: amp load changes · 70 W vs 350 W: lower power handling · Xmax 3.9 mm < 4 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the PR300T4 →
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.