B&C 14 NDL 88

15" · 8 Ω · 700 W · 98.8 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	45 Hz
Qts	0.298
Qes	0.31
Qms	7.8
Vas	102 L
Sd	707 cm²
Xmax	6.7 mm
Re	5 Ω
Bl	19.8 T·m
Mms	85.9 g
Pe	700 W
Sensitivity	98.8 dB

Alignment hint

EBP	145 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 22 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
Sica 15 K 4 PL	46.5 +1.5	0.3 =	102.3 +0.3	8 +1.3	99.2 +0.4	close		+
BMS 15CN860	46 +1	0.276 -0.02	102 =	6 -0.7	98.7 -0.1	close	Xmax 6 mm < 6.7 mm: lower excursion-limited SPL	+
Sica 15 PF 3	45 =	0.31 +0.01	117.6 +15.6	8 +1.3	99.1 +0.3	close		+
Beyma 15MC700Nd	49 +4	0.31 +0.01	105 +3	7 +0.3	100 +1.2	close		+
Sica 15 F 4 CP	46.4 +1.4	0.27 -0.03	97 -5	7 +0.3	99.4 +0.6	close		+
Beyma 15P1000FEV2	42 -3	0.278 -0.02	100.2 -1.8	6.5 -0.2	97.9 -0.9	close	Xmax 6.5 mm < 6.7 mm: lower excursion-limited SPL	+
Beyma 15G450	45 =	0.32 +0.02	115 +13	6.2 -0.5	98.5 -0.3	close	Xmax 6.2 mm < 6.7 mm: lower excursion-limited SPL	+
Beyma 15G450/N	45 =	0.32 +0.02	115 +13	6.2 -0.5	98.5 -0.3	close	Xmax 6.2 mm < 6.7 mm: lower excursion-limited SPL	+
Ciare NDH 15-4	48.6 +3.6	0.312 +0.01	96.9 -5.1	5.9 -0.8	98.6 -0.2	close	Xmax 5.9 mm < 6.7 mm: lower excursion-limited SPL	+
Beyma 15"P1000Fe V2	45 =	0.3 =	80.7 -21.3	8 +1.3	98 -0.8	close		+

Compare the closest 3 against the 14 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.