18 Sound 12NTLS3500
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 4 Ω |
| Fs | 41 Hz |
| Qts | 0.34 |
| Qes | 0.36 |
| Qms | 7.8 |
| Vas | 63 L |
| Sd | 531 cm² |
| Xmax | 7.9 mm |
| Re | 3.1 Ω |
| Bl | 14.5 T·m |
| Mms | 92 g |
| Pe | 750 W |
| Sensitivity | 94.5 dB |
Alignment hint
| EBP | 114 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 18.9 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 |
|---|---|---|---|---|---|---|---|---|
| Beyma 12LX60 | 42 +1 | 0.3 -0.04 | 66 +3 | 9 +1.1 | 93.8 -0.7 | close | 8 Ω vs 4 Ω: amp load changes | + |
| Faital PRO 12HP1010 | 45 +4 | 0.34 = | 56.5 -6.5 | 9.25 +1.35 | 96 +1.5 | close | 8 Ω vs 4 Ω: amp load changes | + |
| 18 Sound 12NTLS3500 | 41 = | 0.41 +0.07 | 65 +2 | 7.9 = | 93.5 -1 | close | 8 Ω vs 4 Ω: amp load changes | + |
| Sica 12 S 3 PL | 42 +1 | 0.34 = | 76.9 +13.9 | 7 -0.9 | 95.8 +1.3 | close | 8 Ω vs 4 Ω: amp load changes · 400 W vs 750 W: lower power handling · Xmax 7 mm < 7.9 mm: lower excursion-limited SPL | + |
| 18 Sound 12NTLX3500 | 39 -2 | 0.33 -0.01 | 79.6 +16.6 | 7.9 = | 95.5 +1 | close | 8 Ω vs 4 Ω: amp load changes | + |
| Precision Devices PD.123C01 | 46 +5 | 0.32 -0.02 | 66.82 +3.82 | 7 -0.9 | 94.9 +0.4 | close | 8 Ω vs 4 Ω: amp load changes · 400 W vs 750 W: lower power handling · Xmax 7 mm < 7.9 mm: lower excursion-limited SPL | + |
| Oberton 12B45V | 47.88 +6.88 | 0.354 +0.01 | 58.51 -4.49 | 10.5 +2.6 | 94 -0.5 | close | 8 Ω vs 4 Ω: amp load changes · 450 W vs 750 W: lower power handling | + |
| Sica 12 PNS 4 | 41.7 +0.7 | 0.31 -0.03 | 50.2 -12.8 | 9.5 +1.6 | 94.5 = | close | 8 Ω vs 4 Ω: amp load changes | + |
| BMS 12N804 | 39 -2 | 0.29 -0.05 | 71 +8 | 8 +0.1 | 95 +0.5 | close | 8 Ω vs 4 Ω: amp load changes | + |
| PHL Audio 4021 v2026 | 35 -6 | 0.348 +0.01 | 70 +7 | 7.5 -0.4 | 92.7 -1.8 | close | 8 Ω vs 4 Ω: amp load changes · 500 W vs 750 W: lower power handling · Xmax 7.5 mm < 7.9 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the 12NTLS3500 →
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.