SB Audience NERO-21SW1100D
Thiele-Small parameters
| Nominal size | 21.5" |
|---|---|
| Impedance | 8 Ω |
| Fs | 32 Hz |
| Qts | 0.339 |
| Qes | 0.35 |
| Qms | 10.92 |
| Vas | 312.6 L |
| Sd | 1654.7 cm² |
| Xmax | 8.1 mm |
| Re | 5.1 Ω |
| Bl | 29.8 T·m |
| Mms | 303.7 g |
| Pe | 1100 W |
| Sensitivity | 98.6 dB |
Alignment hint
| EBP | 91 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 93.3 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 NDC 21-5 | 32.2 +0.2 | 0.344 = | 270.8 -41.8 | 8.8 +0.7 | 97.2 -1.4 | close | + | |
| B&C 21 SW 115 v2015 | 33 +1 | 0.353 +0.01 | 278 -34.6 | 9.3 +1.2 | 100.6 +2 | close | 4 Ω vs 8 Ω: amp load changes | + |
| 18 Sound 21NLW9000 | 29 -3 | 0.347 +0.01 | 304 -8.6 | 10.7 +2.6 | 96.4 -2.2 | close | + | |
| RCF 21LNW9000 | 29 -3 | 0.347 +0.01 | 304 -8.6 | 10.7 +2.6 | 96.4 -2.2 | close | + | |
| Beyma 21PW1400FE | 30 -2 | 0.343 = | 401.5 +88.9 | 10 +1.9 | 98.6 = | close | + | |
| Beyma 21QLEX1600/Fe | 30 -2 | 0.281 -0.06 | 309 -3.6 | 8.4 +0.3 | 98.1 -0.5 | close | + | |
| Beyma 21SW1600ND | 33 +1 | 0.382 +0.04 | 268 -44.6 | 8.9 +0.8 | 97.6 -1 | close | + | |
| MC Kenzie FRL-21/1200-LF | 30 -2 | 0.378 +0.04 | 374 +61.4 | 9.5 +1.4 | 98 -0.6 | close | + | |
| B&C 21 SW 115 | 32.5 +0.5 | 0.404 +0.07 | 268.7 -43.9 | 9.9 +1.8 | 99.2 +0.6 | close | 4 Ω vs 8 Ω: amp load changes | + |
| RCF LF 21N401 | 30 -2 | 0.378 +0.04 | 374 +61.4 | 10.6 +2.5 | 98 -0.6 | close | + |
Compare the closest 3 against the NERO-21SW1100D →
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.