18 Sound 15NTLW3500
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 45 Hz |
| Qts | 0.39 |
| Qes | 0.4 |
| Qms | 8.7 |
| Vas | 131 L |
| Sd | 881 cm² |
| Xmax | 8.3 mm |
| Re | 5.2 Ω |
| Bl | 19.5 T·m |
| Mms | 106 g |
| Pe | 900 W |
| Sensitivity | 98 dB |
Alignment hint
| EBP | 113 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 57.3 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 |
|---|---|---|---|---|---|---|---|---|
| 18 Sound 15NTLW3500 | 46 +1 | 0.4 +0.01 | 115 -16 | 8.3 = | 98 = | close | 4 Ω vs 8 Ω: amp load changes | + |
| Ciare FXE 15-4 | 40.6 -4.4 | 0.406 +0.02 | 131 = | 8.4 +0.1 | 96.5 -1.5 | close | + | |
| Beyma 15MC500 | 46 +1 | 0.45 +0.06 | 134 +3 | 8 -0.3 | 98 = | close | 500 W vs 900 W: lower power handling · Xmax 8 mm < 8.3 mm: lower excursion-limited SPL | + |
| B&C 15NDL88 | 45 = | 0.34 -0.05 | 126 -5 | 8 -0.3 | 99 +1 | close | 700 W vs 900 W: lower power handling · Xmax 8 mm < 8.3 mm: lower excursion-limited SPL | + |
| Sica 15 N 3 PL | 46.9 +1.9 | 0.37 -0.02 | 140.4 +9.4 | 10 +1.7 | 99.8 +1.8 | close | 400 W vs 900 W: lower power handling | + |
| Precision Devices PD156 | 50.15 +5.15 | 0.38 -0.01 | 120.17 -10.83 | 9.5 +1.2 | 97 -1 | close | 16 Ω vs 8 Ω: amp load changes · 650 W vs 900 W: lower power handling | + |
| PD PDN 15BR40-V2 | 39.2 -5.8 | 0.376 -0.01 | 140.1 +9.1 | 8.2 -0.1 | 97.3 -0.7 | close | 700 W vs 900 W: lower power handling · Xmax 8.2 mm < 8.3 mm: lower excursion-limited SPL | + |
| Precision Devices PDN 15BR40-V2 | 39.2 -5.8 | 0.376 -0.01 | 140.1 +9.1 | 8.2 -0.1 | 97.3 -0.7 | close | 700 W vs 900 W: lower power handling · Xmax 8.2 mm < 8.3 mm: lower excursion-limited SPL | + |
| Eminence KAPPA PRO 15 LF v1 | 46 +1 | 0.372 -0.02 | 127.5 -3.5 | 6.4 -1.9 | 98.6 +0.6 | close | 600 W vs 900 W: lower power handling · Xmax 6.4 mm < 8.3 mm: lower excursion-limited SPL | + |
| LaVoce WAN153.00 | 43 -2 | 0.411 +0.02 | 137 +6 | 6.7 -1.6 | 98.3 +0.3 | close | 500 W vs 900 W: lower power handling · Xmax 6.7 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.