B&C 8NDL51

8" · 8 Ω · 200 W · 94 dB · datasheet ↗

Thiele-Small parameters

Nominal size	8"
Impedance	8 Ω
Fs	66 Hz
Qts	0.37
Qes	0.41
Qms	3.6
Vas	14 L
Sd	220 cm²
Xmax	7 mm
Re	5.3 Ω
Bl	12.4 T·m
Mms	28 g
Pe	200 W
Sensitivity	94 dB

Alignment hint

EBP	161 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 5.3 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
Faital PRO 8PR210	65 -1	0.34 -0.03	15.7 +1.7	7.17 +0.17	94 =	close	16 Ω vs 8 Ω: amp load changes	+
Faital PRO 8PR320	65 -1	0.41 +0.04	13.1 -0.9	7.33 +0.33	95 +1	close		+
B&C 8CL51	69 +3	0.41 +0.04	12.5 -1.5	6.5 -0.5	94 =	close	Xmax 6.5 mm < 7 mm: lower excursion-limited SPL	+
Oberton 8MB201	67.7 +1.7	0.314 -0.06	14.74 +0.74	7 =	93 -1	close		+
Beyma 8"G40	70 +4	0.36 -0.01	17 +3	6.5 -0.5	95 +1	close	Xmax 6.5 mm < 7 mm: lower excursion-limited SPL	+
Faital PRO 8PR200	58 -8	0.37 =	16.9 +2.9	8.15 +1.15	95 +1	close		+
Faital PRO 8FE300	70 +4	0.41 +0.04	14 =	5.47 -1.53	93 -1	close	4 Ω vs 8 Ω: amp load changes · Xmax 5.47 mm < 7 mm: lower excursion-limited SPL	+
B&C 8NDL51	70 +4	0.47 +0.1	13.4 -0.6	7 =	94 =	close	16 Ω vs 8 Ω: amp load changes	+
BMS 8N519	74.9 +8.9	0.37 =	10.9 -3.1	6.3 -0.7	94 =	close	Xmax 6.3 mm < 7 mm: lower excursion-limited SPL	+
LaVoce WAF082.00	78 +12	0.37 =	11.92 -2.08	6.3 -0.7	95 +1	close	Xmax 6.3 mm < 7 mm: lower excursion-limited SPL	+

Compare the closest 3 against the 8NDL51 →

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.