18 Sound 15ND940
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 16 Ω |
| Fs | 41 Hz |
| Qts | 0.36 |
| Qes | 0.39 |
| Qms | 4.6 |
| Vas | 166 L |
| Sd | 881 cm² |
| Xmax | 9.5 mm |
| Re | 10.7 Ω |
| Bl | 26.6 T·m |
| Mms | 102 g |
| Pe | 600 W |
| Sensitivity | 98.5 dB |
Alignment hint
| EBP | 105 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 58.1 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 15ND840 | 43 +2 | 0.37 +0.01 | 163 -3 | 9.5 = | 99 +0.5 | close | 8 Ω vs 16 Ω: amp load changes | + |
| Eminence KILOMAX PRO 15 | 41 = | 0.383 +0.02 | 154.5 -11.5 | 7.9 -1.6 | 98.3 -0.2 | close | 8 Ω vs 16 Ω: amp load changes · Xmax 7.9 mm < 9.5 mm: lower excursion-limited SPL | + |
| Eminence KILOMAX PRO 15 A | 41 = | 0.383 +0.02 | 154.5 -11.5 | 7.9 -1.6 | 98.3 -0.2 | close | 8 Ω vs 16 Ω: amp load changes · Xmax 7.9 mm < 9.5 mm: lower excursion-limited SPL | + |
| Eminence KILOMAX 15 | 41 = | 0.383 +0.02 | 154 -12 | 7.9 -1.6 | 98.3 -0.2 | close | 8 Ω vs 16 Ω: amp load changes · Xmax 7.9 mm < 9.5 mm: lower excursion-limited SPL | + |
| Elokance 15WF2400 | 38 -3 | 0.32 -0.04 | 165.2 -0.8 | 10.5 +1 | 98.1 -0.4 | close | 8 Ω vs 16 Ω: amp load changes | + |
| P.Audio S15-100LF | 38 -3 | 0.35 -0.01 | 169.1 +3.1 | 7.8 -1.7 | 98 -0.5 | close | 8 Ω vs 16 Ω: amp load changes · Xmax 7.8 mm < 9.5 mm: lower excursion-limited SPL | + |
| Beyma 15MC700 | 41 = | 0.352 -0.01 | 153 -13 | 7.4 -2.1 | 97.7 -0.8 | close | 8 Ω vs 16 Ω: amp load changes · Xmax 7.4 mm < 9.5 mm: lower excursion-limited SPL | + |
| PD PD 15BR40 | 38.7 -2.3 | 0.34 -0.02 | 158.3 -7.7 | 7.9 -1.6 | 98.1 -0.4 | close | 8 Ω vs 16 Ω: amp load changes · Xmax 7.9 mm < 9.5 mm: lower excursion-limited SPL | + |
| Precision Devices PD 15BR40 | 38.7 -2.3 | 0.34 -0.02 | 158.3 -7.7 | 7.9 -1.6 | 98.1 -0.4 | close | 8 Ω vs 16 Ω: amp load changes · Xmax 7.9 mm < 9.5 mm: lower excursion-limited SPL | + |
| Celestion TF1530E | 41 = | 0.344 -0.02 | 181.7 +15.7 | 8 -1.5 | 97.1 -1.4 | close | 8 Ω vs 16 Ω: amp load changes · 400 W vs 600 W: lower power handling · Xmax 8 mm < 9.5 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the 15ND940 →
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.