B&C 15CL76

15" · 4 Ω · 400 W · 98 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	4 Ω
Fs	42 Hz
Qts	0.25
Qes	0.27
Qms	4.7
Vas	140 L
Sd	855 cm²
Xmax	7 mm
Re	3.5 Ω
Bl	19.1 T·m
Mms	106.5 g
Pe	400 W
Sensitivity	98 dB

Alignment hint

EBP	156 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 20 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
18 Sound 15LW1400	42 =	0.245 -0.01	137 -3	6.7 -0.3	99.3 +1.3	close	8 Ω vs 4 Ω: amp load changes · Xmax 6.7 mm < 7 mm: lower excursion-limited SPL	+
P.Audio P-15N	39.8 -2.2	0.254 =	144.6 +4.6	7.5 +0.5	99.2 +1.2	close	8 Ω vs 4 Ω: amp load changes	+
Oberton 15NB451	39.57 -2.43	0.257 +0.01	145.21 +5.21	7 =	99 +1	close	8 Ω vs 4 Ω: amp load changes	+
18 Sound 15LW1401	42 =	0.27 +0.02	131 -9	9 +2	98 =	close	8 Ω vs 4 Ω: amp load changes	+
BMS 15S430V2	39.8 -2.2	0.26 +0.01	135 -5	7.5 +0.5	96.8 -1.2	close	8 Ω vs 4 Ω: amp load changes	+
18 Sound 15LW1410	42 =	0.27 +0.02	131 -9	8.5 +1.5	98.5 +0.5	close	8 Ω vs 4 Ω: amp load changes	+
Oberton 15NB500	42.77 +0.77	0.255 +0.01	121.46 -18.54	7.25 +0.25	99 +1	close	8 Ω vs 4 Ω: amp load changes	+
18 Sound 15NLW9401	39 -3	0.26 +0.01	134 -6	10 +3	97.5 -0.5	close	8 Ω vs 4 Ω: amp load changes	+
18 Sound 15LW1401	39 -3	0.26 +0.01	127 -13	9 +2	98 =	close		+
18 Sound 15LW1402	42 =	0.28 +0.03	126 -14	7 =	98.4 +0.4	close	8 Ω vs 4 Ω: amp load changes	+

Compare the closest 3 against the 15CL76 →

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.