TC Sounds LMS R12
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 4 Ω |
| Fs | 28 Hz |
| Qts | 0.43 |
| Qes | 0.46 |
| Qms | 6.7 |
| Vas | 39 L |
| Sd | 491 cm² |
| Xmax | 10.8 mm |
| Re | 3.96 Ω |
| Bl | 20.6 T·m |
| Mms | 280 g |
| Pe | 1000 W |
| Sensitivity | 87.7 dB |
Alignment hint
| EBP | 61 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 22.9 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 |
|---|---|---|---|---|---|---|---|---|
| Alpine SWR-12D2 vp | 27 -1 | 0.441 +0.01 | 46 +7 | 10 -0.8 | 87.8 +0.1 | close | 8 Ω vs 4 Ω: amp load changes · 750 W vs 1000 W: lower power handling · Xmax 10 mm < 10.8 mm: lower excursion-limited SPL | + |
| DD Audio 712D4 v2022 | 28.3 +0.3 | 0.434 = | 39.6 +0.6 | 7 -3.8 | 87.7 = | close | 8 Ω vs 4 Ω: amp load changes · 600 W vs 1000 W: lower power handling · Xmax 7 mm < 10.8 mm: lower excursion-limited SPL | + |
| Focal SUB30KXE | 29 +1 | 0.454 +0.02 | 50 +11 | 10.8 = | 86.9 -0.8 | close | 8 Ω vs 4 Ω: amp load changes | + |
| Focal E30KX | 29 +1 | 0.454 +0.02 | 50 +11 | 10.7 -0.1 | 86.9 -0.8 | close | 8 Ω vs 4 Ω: amp load changes · Xmax 10.7 mm < 10.8 mm: lower excursion-limited SPL | + |
| Hifonics MXZ 12D2 | 31 +3 | 0.443 +0.01 | 30 -9 | 10.3 -0.5 | 87.3 -0.4 | close | 8 Ω vs 4 Ω: amp load changes · Xmax 10.3 mm < 10.8 mm: lower excursion-limited SPL | + |
| DD Audio REDLINE 700 SERIES | 28.3 +0.3 | 0.434 = | 39.6 +0.6 | 7 -3.8 | 90.7 +3 | usable | 600 W vs 1000 W: lower power handling · Xmax 7 mm < 10.8 mm: lower excursion-limited SPL | + |
| MTX Audio TX612 | 27 -1 | 0.393 -0.04 | 42.7 +3.7 | 9.7 -1.1 | 91 +3.3 | usable | Xmax 9.7 mm < 10.8 mm: lower excursion-limited SPL | + |
| Alpine SWR-1242D 12 | 29 +1 | 0.47 +0.04 | 45 +6 | 9.1 -1.7 | 85.7 -2 | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 9.1 mm < 10.8 mm: lower excursion-limited SPL | + |
| Earthquake Sound SUBZERO-12 | 26.8 -1.2 | 0.424 -0.01 | 58.1 +19.1 | 12.7 +1.9 | 86.2 -1.5 | usable | 8 Ω vs 4 Ω: amp load changes | + |
| Ground Zero GZRW 12XD-AL | 29 +1 | 0.451 +0.02 | 52 +13 | 9.2 -1.6 | 86.1 -1.6 | usable | 8 Ω vs 4 Ω: amp load changes · 500 W vs 1000 W: lower power handling · Xmax 9.2 mm < 10.8 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the LMS R12 →
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.