B&C 21 DS 115 - 4
Paramètres Thiele-Small
| Taille nominale | 21.5" |
|---|---|
| Impédance | 4 Ω |
| Fs | 30 Hz |
| Qts | 0.196 |
| Qes | 0.2 |
| Qms | 11 |
| Vas | 274 L |
| Sd | 1680 cm² |
| Xmax | 6.9 mm |
| Re | 2.2 Ω |
| Bl | 29 T·m |
| Mms | 406.4 g |
| Pe | 1700 W |
| Sensibilité | 103.3 dB |
Indication d'alignement
| EBP | 150 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 22.8 L |
EBP > 100 : favorise un alignement bass-reflex.
Rules of thumb from T/S parameters only. Verify against a real simulation before cutting wood.
Candidats de substitution
| HP | Fs (Hz) | Qts | Vas (L) | Xmax (mm) | Sens (dB) | Adéquation | Notes | Comparer |
|---|---|---|---|---|---|---|---|---|
| B&C 21 DS 115 | 30 = | 0.234 +0.04 | 269 -5 | 7.6 +0.7 | 98.7 -4.6 | usable | 8 Ω vs 4 Ω: amp load changes | + |
| LaVoce SAN214.50LD vp | 30 = | 0.223 +0.03 | 250 -24 | 7.2 +0.3 | 98.4 -4.9 | usable | 8 Ω vs 4 Ω: amp load changes | + |
| 18 Sound 21NLW9000C | 29 -1 | 0.248 +0.05 | 257 -17 | 8.1 +1.2 | 100.5 -2.8 | usable | + | |
| B&C 21 SW 150 | 29 -1 | 0.261 +0.07 | 254 -20 | 7.5 +0.6 | 99.4 -3.9 | usable | + | |
| PD PDN 2151 | 31.4 +1.4 | 0.276 +0.08 | 303.4 +29.4 | 6.7 -0.2 | 99 -4.3 | usable | 8 Ω vs 4 Ω: amp load changes · 1000 W vs 1700 W: lower power handling · Xmax 6.7 mm < 6.9 mm: lower excursion-limited SPL | + |
| Precision Devices PDN 2151 | 31.4 +1.4 | 0.276 +0.08 | 303.4 +29.4 | 6.7 -0.2 | 99 -4.3 | usable | 8 Ω vs 4 Ω: amp load changes · 1000 W vs 1700 W: lower power handling · Xmax 6.7 mm < 6.9 mm: lower excursion-limited SPL | + |
| 18 Sound 21LW400 | 28 -2 | 0.234 +0.04 | 385 +111 | 9.3 +2.4 | 99.5 -3.8 | usable | 8 Ω vs 4 Ω: amp load changes | + |
| RCF LF 21N451 | 30 = | 0.239 +0.04 | 440 +166 | 8.9 +2 | 100.4 -2.9 | usable | 8 Ω vs 4 Ω: amp load changes | + |
| Beyma 21QLEX1600/Fe | 30 = | 0.281 +0.09 | 309 +35 | 8.4 +1.5 | 98.1 -5.2 | usable | 8 Ω vs 4 Ω: amp load changes | + |
| RCF LF 21N451 v2017 | 30 = | 0.259 +0.06 | 375 +101 | 8.6 +1.7 | 99.3 -4 | usable | 8 Ω vs 4 Ω: amp load changes | + |
Comparer les 3 plus proches avec le 21 DS 115 - 4 →
Classé par similarité de paramètres uniquement (Qts, Fs, Vas, Xmax, sensibilité). Même taille nominale requise. Une indication, pas une simulation, modélisez l'échange avant de couper ou d'acheter.
Utilisé dans les caissons (0)
No enclosure in the catalog uses this driver yet.