B&C 15NBX100

15" · 8 Ω · 1000 W · 97 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	36 Hz
Qts	0.29
Qes	0.31
Qms	4.2
Vas	125 L
Sd	855 cm²
Xmax	10 mm
Re	5.1 Ω
Bl	25 T·m
Mms	151 g
Pe	1000 W
Sensitivity	97 dB

Alignment hint

EBP	116 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 25.3 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 15LEX1200Nd	36 =	0.3 +0.01	127 +2	11 +1	97 =	close		+
B&C 15 NBX 100	36 =	0.289 =	125 =	7.9 -2.1	96.7 -0.3	close	Xmax 7.9 mm < 10 mm: lower excursion-limited SPL	+
18 Sound 15LW2400	40 +4	0.3 +0.01	131 +6	10 =	97 =	close		+
BMS 15N840 v2015	35.6 -0.4	0.303 +0.01	145.7 +20.7	9.9 -0.1	97.1 +0.1	close	Xmax 9.9 mm < 10 mm: lower excursion-limited SPL	+
RCF LF 15X401	34 -2	0.289 =	146 +21	10.3 +0.3	96.4 -0.6	close		+
Oberton 15XB1000	37.2 +1.2	0.283 -0.01	111.02 -13.98	9 -1	97 =	close	Xmax 9 mm < 10 mm: lower excursion-limited SPL	+
Faital PRO 15FX600	38 +2	0.27 -0.02	128.3 +3.3	11.25 +1.25	98 +1	close	700 W vs 1000 W: lower power handling	+
BMS 15N840V2-8	35.6 -0.4	0.268 -0.02	130 +5	8.7 -1.3	97.2 +0.2	close	Xmax 8.7 mm < 10 mm: lower excursion-limited SPL	+
RCF LF15X401	34 -2	0.29 =	146 +21	12 +2	96.5 -0.5	close		+
BMS 15S435	38 +2	0.28 -0.01	129 +4	8 -2	97 =	close	Xmax 8 mm < 10 mm: lower excursion-limited SPL	+

Compare the closest 3 against the 15NBX100 →

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.