B&C 15SW115

15" · 4 Ω · 1700 W · 96 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	4 Ω
Fs	34 Hz
Qts	0.22
Qes	0.23
Qms	5.8
Vas	105 L
Sd	855 cm²
Xmax	13.5 mm
Re	3.2 Ω
Bl	25.5 T·m
Mms	212 g
Pe	1700 W
Sensitivity	96 dB

Alignment hint

EBP	148 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 11.3 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
Beyma 15QLEX1600Fe	33 -1	0.21 -0.01	102 -3	13 -0.5	96 =	close	8 Ω vs 4 Ω: amp load changes · Xmax 13 mm < 13.5 mm: lower excursion-limited SPL	+
B&C 15SW115	35 +1	0.24 +0.02	110 +5	13.5 =	96 =	close	8 Ω vs 4 Ω: amp load changes	+
Faital PRO 15XL2400	32 -2	0.21 -0.01	113.9 +8.9	17.67 +4.17	96 =	close	8 Ω vs 4 Ω: amp load changes	+
18 Sound 15NLW4500	35 +1	0.26 +0.04	111 +6	14.5 +1	96.3 +0.3	close	8 Ω vs 4 Ω: amp load changes	+
18 Sound 15NLW4500	35 +1	0.2 -0.02	126 +21	14.5 +1	96.6 +0.6	close		+
B&C 15 SW 115-4	34 =	0.221 =	105 =	8.4 -5.1	98.5 +2.5	close	Xmax 8.4 mm < 13.5 mm: lower excursion-limited SPL	+
B&C 15 SW 115	35 +1	0.237 +0.02	110 +5	8.8 -4.7	96.6 +0.6	usable	8 Ω vs 4 Ω: amp load changes · Xmax 8.8 mm < 13.5 mm: lower excursion-limited SPL	+
B&C 15NW100	34 =	0.23 +0.01	126.1 +21.1	9 -4.5	95 -1	usable	1000 W vs 1700 W: lower power handling · Xmax 9 mm < 13.5 mm: lower excursion-limited SPL	+
B&C 15DS115	33 -1	0.17 -0.05	94 -11	16.5 +3	97 +1	usable	8 Ω vs 4 Ω: amp load changes	+
B&C 15SW100	37 +3	0.28 +0.06	99.5 -5.5	12.5 -1	95 -1	usable	Xmax 12.5 mm < 13.5 mm: lower excursion-limited SPL	+

Compare the closest 3 against the 15SW115 →

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.