B&C 15 NDL 88

15" · 8 Ω · 700 W · 99.1 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	45 Hz
Qts	0.34
Qes	0.36
Qms	6.1
Vas	126 L
Sd	855 cm²
Xmax	6.6 mm
Re	5 Ω
Bl	20 T·m
Mms	101.7 g
Pe	700 W
Sensitivity	99.1 dB

Alignment hint

EBP	125 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 37.9 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 15NDL88	45 =	0.34 =	126 =	8 +1.4	99 -0.1	close		+
Beyma 15MCB700	44 -1	0.34 =	148 +22	7 +0.4	99 -0.1	close		+
MC Kenzie C15.500BS	45 =	0.35 +0.01	145 +19	6.5 -0.1	98.8 -0.3	close	500 W vs 700 W: lower power handling · Xmax 6.5 mm < 6.6 mm: lower excursion-limited SPL	+
Eminence KAPPA PRO 15 LF v1	46 +1	0.372 +0.03	127.5 +1.5	6.4 -0.2	98.6 -0.5	close	Xmax 6.4 mm < 6.6 mm: lower excursion-limited SPL	+
Oberton 15MB35	47.7 +2.7	0.336 =	115.1 -10.9	6.75 +0.15	100 +0.9	close		+
Sica 15 PF 3	45 =	0.31 -0.03	117.6 -8.4	8 +1.4	99.1 =	close		+
B&C 15CL76	42 -3	0.33 -0.01	135 +9	7 +0.4	98.5 -0.6	close	400 W vs 700 W: lower power handling	+
18 Sound 15W1301	48 +3	0.355 +0.01	123 -3	6 -0.6	99.3 +0.2	close	Xmax 6 mm < 6.6 mm: lower excursion-limited SPL	+
Beyma 15G450	45 =	0.32 -0.02	115 -11	6.2 -0.4	98.5 -0.6	close	Xmax 6.2 mm < 6.6 mm: lower excursion-limited SPL	+
Beyma 15G450/N	45 =	0.32 -0.02	115 -11	6.2 -0.4	98.5 -0.6	close	Xmax 6.2 mm < 6.6 mm: lower excursion-limited SPL	+

Compare the closest 3 against the 15 NDL 88 →

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.