18 Sound 15W750
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 4 Ω |
| Fs | 39 Hz |
| Qts | 0.29 |
| Qes | 0.3 |
| Qms | 6.2 |
| Vas | 253 L |
| Sd | 850 cm² |
| Xmax | 8 mm |
| Re | 2.7 Ω |
| Bl | 14 T·m |
| Mms | 89.5 g |
| Pe | 600 W |
| Sensitivity | 97 dB |
Alignment hint
| EBP | 130 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 51.2 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 |
|---|---|---|---|---|---|---|---|---|
| Max Speaker PR1566 | 36 -3 | 0.296 +0.01 | 262 +9 | 8.6 +0.6 | 99.1 +2.1 | close | 8 Ω vs 4 Ω: amp load changes | + |
| Beyma 15XA38Nd v2020 | 38 -1 | 0.296 +0.01 | 238 -15 | 6 -2 | 99 +2 | close | 8 Ω vs 4 Ω: amp load changes · 350 W vs 600 W: lower power handling · Xmax 6 mm < 8 mm: lower excursion-limited SPL | + |
| DAS Audio 15S | 35 -4 | 0.287 = | 188 -65 | 8 = | 97.4 +0.4 | close | 8 Ω vs 4 Ω: amp load changes | + |
| Eminence KAPPA PRO 15 LF-2 | 35 -4 | 0.307 +0.02 | 198.8 -54.2 | 8.2 +0.2 | 97.1 +0.1 | close | 8 Ω vs 4 Ω: amp load changes | + |
| 18 Sound 15NMB420 | 42 +3 | 0.29 = | 225 -28 | 6.5 -1.5 | 99 +2 | close | 8 Ω vs 4 Ω: amp load changes · 450 W vs 600 W: lower power handling · Xmax 6.5 mm < 8 mm: lower excursion-limited SPL | + |
| Faital PRO 15FH500 | 33 -6 | 0.28 -0.01 | 209.5 -43.5 | 9.45 +1.45 | 97 = | close | + | |
| Beyma 15LW30 v2015 | 34 -5 | 0.325 +0.04 | 251 -2 | 7 -1 | 97.6 +0.6 | close | 8 Ω vs 4 Ω: amp load changes · Xmax 7 mm < 8 mm: lower excursion-limited SPL | + |
| Monacor SP-15/500FH | 35 -4 | 0.31 +0.02 | 218 -35 | 7.8 -0.2 | 98.6 +1.6 | close | 8 Ω vs 4 Ω: amp load changes · Xmax 7.8 mm < 8 mm: lower excursion-limited SPL | + |
| Beyma SM115 v2 | 35 -4 | 0.315 +0.03 | 276 +23 | 7.3 -0.7 | 98.4 +1.4 | close | 8 Ω vs 4 Ω: amp load changes · 400 W vs 600 W: lower power handling · Xmax 7.3 mm < 8 mm: lower excursion-limited SPL | + |
| 18 Sound 15W700 | 38 -1 | 0.3 +0.01 | 217 -36 | 6.5 -1.5 | 99 +2 | close | 8 Ω vs 4 Ω: amp load changes · 450 W vs 600 W: lower power handling · Xmax 6.5 mm < 8 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the 15W750 →
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.