MTX Audio T4124A
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 4 Ω |
| Fs | 29.3 Hz |
| Qts | 0.549 |
| Qes | 0.59 |
| Qms | 7.97 |
| Vas | 118.8 L |
| Sd | 530 cm² |
| Xmax | 8.4 mm |
| Re | 3.29 Ω |
| Bl | 10 T·m |
| Mms | 97.8 g |
| Pe | 200 W |
| Sensitivity | 92.9 dB |
Alignment hint
| EBP | 50 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 180.3 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 |
|---|---|---|---|---|---|---|---|---|
| JBL GT3-12 | 28.2 -1.1 | 0.541 -0.01 | 100.5 -18.3 | 8.2 -0.2 | 91.8 -1.1 | close | Xmax 8.2 mm < 8.4 mm: lower excursion-limited SPL | + |
| Focal 33H | 29.4 +0.1 | 0.618 +0.07 | 124.4 +5.6 | 7.5 -0.9 | 92.5 -0.4 | close | Xmax 7.5 mm < 8.4 mm: lower excursion-limited SPL | + |
| Infinity 120W.IB | 32 +2.7 | 0.527 -0.02 | 127 +8.2 | 8.1 -0.3 | 94.9 +2 | close | Xmax 8.1 mm < 8.4 mm: lower excursion-limited SPL | + |
| JBL P1200 | 30 +0.7 | 0.45 -0.1 | 123 +4.2 | 7.8 -0.6 | 92.8 -0.1 | close | 8 Ω vs 4 Ω: amp load changes · Xmax 7.8 mm < 8.4 mm: lower excursion-limited SPL | + |
| Beyma 12"BR70 | 31 +1.7 | 0.5 -0.05 | 142 +23.2 | 8 -0.4 | 93 +0.1 | close | 8 Ω vs 4 Ω: amp load changes · 125 W vs 200 W: lower power handling · Xmax 8 mm < 8.4 mm: lower excursion-limited SPL | + |
| Peerless XXLS-P830845 | 27 -2.3 | 0.517 -0.03 | 119.5 +0.7 | 7.6 -0.8 | 89.8 -3.1 | close | 8 Ω vs 4 Ω: amp load changes · Xmax 7.6 mm < 8.4 mm: lower excursion-limited SPL | + |
| Pioneer VINTAGE VERSION | 25.7 -3.6 | 0.556 +0.01 | 134.2 +15.4 | 7.2 -1.2 | 92.1 -0.8 | close | 100 W vs 200 W: lower power handling · Xmax 7.2 mm < 8.4 mm: lower excursion-limited SPL | + |
| Rockford Fosgate P1S412 | 25 -4.3 | 0.537 -0.01 | 109 -9.8 | 9 +0.6 | 90.4 -2.5 | close | + | |
| Visaton TIW360DS 2x4 Ohms | 30 +0.7 | 0.675 +0.13 | 114 -4.8 | 11.7 +3.3 | 92 -0.9 | close | + | |
| JL Audio 12WX-4 | 27 -2.3 | 0.562 +0.01 | 94.5 -24.3 | 8.5 +0.1 | 90.5 -2.4 | close | + |
Compare the closest 3 against the T4124A →
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.