Eminence NSW6021-6
Thiele-Small parameters
| Nominal size | 21.5" |
|---|---|
| Impedance | 4 Ω |
| Fs | 29 Hz |
| Qts | 0.304 |
| Qes | 0.31 |
| Qms | 15.35 |
| Vas | 224.6 L |
| Sd | 1642 cm² |
| Xmax | 10.3 mm |
| Re | 3.8 Ω |
| Bl | 33.6 T·m |
| Mms | 506.9 g |
| Pe | 2500 W |
| Sensitivity | 97.7 dB |
Alignment hint
| EBP | 94 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 50.9 L |
EBP 50-100: works in either a sealed or ported 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 |
|---|---|---|---|---|---|---|---|---|
| Ciare NDK 21-4 | 28.5 -0.5 | 0.322 +0.02 | 232.4 +7.8 | 8 -2.3 | 97.4 -0.3 | close | 1500 W vs 2500 W: lower power handling · Xmax 8 mm < 10.3 mm: lower excursion-limited SPL | + |
| Dayton Audio PSS545HE-4 VORTEX | 28.8 -0.2 | 0.27 -0.03 | 212.1 -12.5 | 8.6 -1.7 | 97.8 +0.1 | close | Xmax 8.6 mm < 10.3 mm: lower excursion-limited SPL | + |
| 18 Sound 21NLW9000 | 29 = | 0.347 +0.04 | 304 +79.4 | 10.7 +0.4 | 96.4 -1.3 | usable | 8 Ω vs 4 Ω: amp load changes · 1800 W vs 2500 W: lower power handling | + |
| RCF 21LNW9000 | 29 = | 0.347 +0.04 | 304 +79.4 | 10.7 +0.4 | 96.4 -1.3 | usable | 8 Ω vs 4 Ω: amp load changes · 1800 W vs 2500 W: lower power handling | + |
| B&C 21 SW 152 | 32 +3 | 0.297 -0.01 | 198.2 -26.4 | 7.5 -2.8 | 98.9 +1.2 | usable | Xmax 7.5 mm < 10.3 mm: lower excursion-limited SPL | + |
| B&C 21 SW 152 v2013 | 32 +3 | 0.297 -0.01 | 200 -24.6 | 7.5 -2.8 | 99.5 +1.8 | usable | Xmax 7.5 mm < 10.3 mm: lower excursion-limited SPL | + |
| Ciare NDC 21-5 | 32.2 +3.2 | 0.344 +0.04 | 270.8 +46.2 | 8.8 -1.5 | 97.2 -0.5 | usable | 8 Ω vs 4 Ω: amp load changes · 1500 W vs 2500 W: lower power handling · Xmax 8.8 mm < 10.3 mm: lower excursion-limited SPL | + |
| Beyma 21QLEX1600/Fe | 30 +1 | 0.281 -0.02 | 309 +84.4 | 8.4 -1.9 | 98.1 +0.4 | usable | 8 Ω vs 4 Ω: amp load changes · 1600 W vs 2500 W: lower power handling · Xmax 8.4 mm < 10.3 mm: lower excursion-limited SPL | + |
| B&C 21 SW 150 | 29 = | 0.261 -0.04 | 254 +29.4 | 7.5 -2.8 | 99.4 +1.7 | usable | 1500 W vs 2500 W: lower power handling · Xmax 7.5 mm < 10.3 mm: lower excursion-limited SPL | + |
| RCF LF 21N551 | 35 +6 | 0.331 +0.03 | 200 -24.6 | 7.7 -2.6 | 97.7 = | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 7.7 mm < 10.3 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the NSW6021-6 →
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.