MTX Audio RFL12
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 4 Ω |
| Fs | 35 Hz |
| Qts | 0.353 |
| Qes | 0.37 |
| Qms | 7.61 |
| Vas | 14.6 L |
| Sd | 497.7 cm² |
| Xmax | 9.3 mm |
| Re | 2 Ω |
| Bl | 24.2 T·m |
| Mms | 491.8 g |
| Pe | 3000 W |
| Sensitivity | 90.3 dB |
Alignment hint
| EBP | 95 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 4.8 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 |
|---|---|---|---|---|---|---|---|---|
| Hifonics CX12D2 | 36 +1 | 0.336 -0.02 | 25 +10.4 | 12.5 +3.2 | 90.1 -0.2 | usable | 8 Ω vs 4 Ω: amp load changes | + |
| FI Audio Q12 DUAL 2 | 33.9 -1.1 | 0.371 +0.02 | 28.3 +13.7 | 10.6 +1.3 | 91.1 +0.8 | usable | 1750 W vs 3000 W: lower power handling | + |
| MTX Audio TX812 | 35 = | 0.422 +0.07 | 24.6 +10 | 10 +0.7 | 91.6 +1.3 | usable | 1800 W vs 3000 W: lower power handling | + |
| Pioneer TS-W5102SPL | 30 -5 | 0.344 -0.01 | 26.7 +12.1 | 12.6 +3.3 | 92.3 +2 | usable | 2 Ω vs 4 Ω: amp load changes | + |
| Rockford Fosgate T2D212 | 38.7 +3.7 | 0.489 +0.14 | 13.6 -1 | 7.1 -2.2 | 87.3 -3 | usable | 1200 W vs 3000 W: lower power handling · Xmax 7.1 mm < 9.3 mm: lower excursion-limited SPL | + |
| DD Audio 712D4 | 37.7 +2.7 | 0.478 +0.13 | 20.2 +5.6 | 7 -2.3 | 91.2 +0.9 | usable | 1200 W vs 3000 W: lower power handling · Xmax 7 mm < 9.3 mm: lower excursion-limited SPL | + |
| Soundstream T4-12 | 36.5 +1.5 | 0.371 +0.02 | 29.3 +14.7 | 6.6 -2.7 | 91.3 +1 | usable | 900 W vs 3000 W: lower power handling · Xmax 6.6 mm < 9.3 mm: lower excursion-limited SPL | + |
| Gladen SQL 12 EXTREME | 33 -2 | 0.353 = | 36 +21.4 | 9.4 +0.1 | 93.1 +2.8 | usable | 2 Ω vs 4 Ω: amp load changes · 1300 W vs 3000 W: lower power handling | + |
| Ascendant Audio HAVOC 12 D2 | 33.7 -1.3 | 0.379 +0.03 | 28.9 +14.3 | 8.2 -1.1 | 94 +3.7 | usable | 2 Ω vs 4 Ω: amp load changes · 1000 W vs 3000 W: lower power handling · Xmax 8.2 mm < 9.3 mm: lower excursion-limited SPL | + |
| Audio System KRYPTON 12 | 37 +2 | 0.39 +0.04 | 30 +15.4 | 17 +7.7 | 87.5 -2.8 | usable | 1000 W vs 3000 W: lower power handling | + |
Compare the closest 3 against the RFL12 →
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.