B&C 15 HCX 76

15" · 8 Ω · 400 W · 100.4 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	38 Hz
Qts	0.285
Qes	0.3
Qms	5.8
Vas	243.5 L
Sd	855 cm²
Xmax	4.5 mm
Re	5.1 Ω
Bl	17.3 T·m
Mms	73.8 g
Pe	400 W
Sensitivity	100.4 dB

Alignment hint

EBP	127 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 47.2 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 15 CXN 76	38 =	0.285 =	246 +2.5	4.5 =	100.5 +0.1	close		+
Beyma 15MI100 v2014	37 -1	0.287 =	264 +20.5	4.5 =	99.6 -0.8	close		+
P.Audio E15-300S v2015	39 +1	0.287 =	228.8 -14.7	4.3 -0.2	99.5 -0.9	close	300 W vs 400 W: lower power handling · Xmax 4.3 mm < 4.5 mm: lower excursion-limited SPL	+
P.Audio E 300S	39 +1	0.287 =	228 -15.5	4.3 -0.2	99.5 -0.9	close	300 W vs 400 W: lower power handling · Xmax 4.3 mm < 4.5 mm: lower excursion-limited SPL	+
Ciare 15.75 NdW vp	37.7 -0.3	0.286 =	215 -28.5	5 +0.5	99.7 -0.7	close		+
Beyma 15XA38Nd v2020	38 =	0.296 +0.01	238 -5.5	6 +1.5	99 -1.4	close		+
Beyma 15G300	37 -1	0.28 =	234 -9.5	4 -0.5	99.2 -1.2	close	250 W vs 400 W: lower power handling · Xmax 4 mm < 4.5 mm: lower excursion-limited SPL	+
P.Audio E15-300S2	39 +1	0.29 +0.01	228.84 -14.66	4.3 -0.2	98.4 -2	close	300 W vs 400 W: lower power handling · Xmax 4.3 mm < 4.5 mm: lower excursion-limited SPL	+
LaVoce WAF153.02	35 -3	0.261 -0.02	244 +0.5	4.6 +0.1	99.7 -0.7	close		+
RCF L 15/542K	36 -2	0.3 +0.02	250 +6.5	5 +0.5	98.8 -1.6	close		+

Compare the closest 3 against the 15 HCX 76 →

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.