18 Sound 12NTLW2500
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 60 Hz |
| Qts | 0.38 |
| Qes | 0.39 |
| Qms | 8.4 |
| Vas | 45 L |
| Sd | 531 cm² |
| Xmax | 7.6 mm |
| Re | 5 Ω |
| Bl | 17.4 T·m |
| Mms | 62 g |
| Pe | 500 W |
| Sensitivity | 98.5 dB |
Alignment hint
| EBP | 154 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 18.3 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 |
|---|---|---|---|---|---|---|---|---|
| PD PD 124NR1 | 58 -2 | 0.354 -0.03 | 49 +4 | 7.4 -0.2 | 97.3 -1.2 | close | Xmax 7.4 mm < 7.6 mm: lower excursion-limited SPL | + |
| Precision Devices PD 124NR1 | 58 -2 | 0.354 -0.03 | 49 +4 | 7.4 -0.2 | 97.3 -1.2 | close | Xmax 7.4 mm < 7.6 mm: lower excursion-limited SPL | + |
| 18 Sound 12NW350 | 54 -6 | 0.34 -0.04 | 46 +1 | 8.3 +0.7 | 98 -0.5 | close | + | |
| Beyma 12MCS500 | 57 -3 | 0.36 -0.02 | 57 +12 | 8 +0.4 | 98 -0.5 | close | + | |
| B&C 12PLB100 | 50 -10 | 0.37 -0.01 | 47 +2 | 9 +1.4 | 97 -1.5 | close | + | |
| 18 Sound 12NTLW3500 | 53 -7 | 0.33 -0.05 | 45 = | 8.3 +0.7 | 97 -1.5 | close | + | |
| 18 Sound 12W700 | 58 -2 | 0.36 -0.02 | 55 +10 | 6.5 -1.1 | 98 -0.5 | close | Xmax 6.5 mm < 7.6 mm: lower excursion-limited SPL | + |
| Beyma 12"LX60V2 | 49 -11 | 0.38 = | 43 -2 | 9 +1.4 | 96 -2.5 | close | + | |
| B&C 12FW88 | 53 -7 | 0.33 -0.05 | 45.7 +0.7 | 8 +0.4 | 97 -1.5 | close | + | |
| Beyma 12"MC500 | 57 -3 | 0.34 -0.04 | 57 +12 | 8 +0.4 | 98 -0.5 | close | + |
Compare the closest 3 against the 12NTLW2500 →
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.