18 Sound 15NTLW3500
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 4 Ω |
| Fs | 46 Hz |
| Qts | 0.4 |
| Qes | 0.41 |
| Qms | 9.4 |
| Vas | 115 L |
| Sd | 881 cm² |
| Xmax | 8.3 mm |
| Re | 3.1 Ω |
| Bl | 15.8 T·m |
| Mms | 115 g |
| Pe | 900 W |
| Sensitivity | 98 dB |
Alignment hint
| EBP | 112 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 54.1 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 |
|---|---|---|---|---|---|---|---|---|
| 18 Sound 15NTLW3500 | 45 -1 | 0.39 -0.01 | 131 +16 | 8.3 = | 98 = | close | 8 Ω vs 4 Ω: amp load changes | + |
| Precision Devices PD156 | 50.15 +4.15 | 0.38 -0.02 | 120.17 +5.17 | 9.5 +1.2 | 97 -1 | close | 16 Ω vs 4 Ω: amp load changes · 650 W vs 900 W: lower power handling | + |
| B&C 15FW88 | 49 +3 | 0.43 +0.03 | 103.7 -11.3 | 8 -0.3 | 98 = | close | 8 Ω vs 4 Ω: amp load changes · 700 W vs 900 W: lower power handling · Xmax 8 mm < 8.3 mm: lower excursion-limited SPL | + |
| Beyma 15MC500 | 46 = | 0.45 +0.05 | 134 +19 | 8 -0.3 | 98 = | close | 8 Ω vs 4 Ω: amp load changes · 500 W vs 900 W: lower power handling · Xmax 8 mm < 8.3 mm: lower excursion-limited SPL | + |
| Beyma 15"LX60V2 | 42 -4 | 0.44 +0.04 | 105.53 -9.47 | 8 -0.3 | 98 = | close | 8 Ω vs 4 Ω: amp load changes · 700 W vs 900 W: lower power handling · Xmax 8 mm < 8.3 mm: lower excursion-limited SPL | + |
| Beyma 15LEX1000Nd | 41 -5 | 0.37 -0.03 | 113 -2 | 10 +1.7 | 97 -1 | close | 8 Ω vs 4 Ω: amp load changes | + |
| Ciare FXE 15-4 | 40.6 -5.4 | 0.406 +0.01 | 131 +16 | 8.4 +0.1 | 96.5 -1.5 | close | 8 Ω vs 4 Ω: amp load changes | + |
| Eminence KAPPA PRO 15 LF v1 | 46 = | 0.372 -0.03 | 127.5 +12.5 | 6.4 -1.9 | 98.6 +0.6 | close | 8 Ω vs 4 Ω: amp load changes · 600 W vs 900 W: lower power handling · Xmax 6.4 mm < 8.3 mm: lower excursion-limited SPL | + |
| B&C 15NDL88 | 45 -1 | 0.34 -0.06 | 126 +11 | 8 -0.3 | 99 +1 | close | 8 Ω vs 4 Ω: amp load changes · 700 W vs 900 W: lower power handling · Xmax 8 mm < 8.3 mm: lower excursion-limited SPL | + |
| Beyma 15MCS500 | 46 = | 0.48 +0.08 | 134 +19 | 8 -0.3 | 98 = | close | 8 Ω vs 4 Ω: amp load changes · 500 W vs 900 W: lower power handling · Xmax 8 mm < 8.3 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the 15NTLW3500 →
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.