B&C 15DS115
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 33 Hz |
| Qts | 0.17 |
| Qes | 0.18 |
| Qms | 5.2 |
| Vas | 94 L |
| Sd | 855 cm² |
| Xmax | 16.5 mm |
| Re | 4.9 Ω |
| Bl | 38.7 T·m |
| Mms | 254 g |
| Pe | 1600 W |
| Sensitivity | 97 dB |
Alignment hint
| EBP | 183 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 5.8 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 |
|---|---|---|---|---|---|---|---|---|
| B&C 15DS115 | 34 +1 | 0.16 -0.01 | 83 -11 | 16.5 = | 96 -1 | close | 4 Ω vs 8 Ω: amp load changes | + |
| Faital PRO 15XL2400 | 32 -1 | 0.21 +0.04 | 113.9 +19.9 | 17.67 +1.17 | 96 -1 | usable | + | |
| Beyma 15QLEX1600Fe | 33 = | 0.21 +0.04 | 102 +8 | 13 -3.5 | 96 -1 | usable | Xmax 13 mm < 16.5 mm: lower excursion-limited SPL | + |
| B&C 15 DS 115 | 33 = | 0.174 = | 94 = | 6.8 -9.7 | 96.8 -0.2 | usable | Xmax 6.8 mm < 16.5 mm: lower excursion-limited SPL | + |
| 18 Sound 15NLW4500 | 35 +2 | 0.2 +0.03 | 126 +32 | 14.5 -2 | 96.6 -0.4 | usable | 4 Ω vs 8 Ω: amp load changes · Xmax 14.5 mm < 16.5 mm: lower excursion-limited SPL | + |
| B&C 15SW115 | 34 +1 | 0.22 +0.05 | 105 +11 | 13.5 -3 | 96 -1 | usable | 4 Ω vs 8 Ω: amp load changes · Xmax 13.5 mm < 16.5 mm: lower excursion-limited SPL | + |
| RCF LF15N451 | 35 +2 | 0.18 +0.01 | 125 +31 | 9 -7.5 | 97 = | usable | Xmax 9 mm < 16.5 mm: lower excursion-limited SPL | + |
| B&C 15SW115 | 35 +2 | 0.24 +0.07 | 110 +16 | 13.5 -3 | 96 -1 | usable | Xmax 13.5 mm < 16.5 mm: lower excursion-limited SPL | + |
| 18 Sound 15NLW4500 | 35 +2 | 0.26 +0.09 | 111 +17 | 14.5 -2 | 96.3 -0.7 | usable | Xmax 14.5 mm < 16.5 mm: lower excursion-limited SPL | + |
| B&C 15 DS 115-4 | 34 +1 | 0.164 -0.01 | 83 -11 | 6 -10.5 | 98.8 +1.8 | usable | 4 Ω vs 8 Ω: amp load changes · Xmax 6 mm < 16.5 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the 15DS115 →
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 (3)
- 15" Mid Hornmidfront loaded horn
- 15" Tapped Hornsubtapped horn
- 15"+6.5"+1" 3-Way Toptopbass reflex