B&C 6NDL38

6.5" · 8 Ω · 150 W · 92 dB · datasheet ↗

Thiele-Small parameters

Nominal size	6.5"
Impedance	8 Ω
Fs	72 Hz
Qts	0.42
Qes	0.44
Qms	11.5
Vas	7 L
Sd	132 cm²
Xmax	6 mm
Re	5.2 Ω
Bl	9.5 T·m
Mms	17 g
Pe	150 W
Sensitivity	92 dB

Alignment hint

EBP	164 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 3.8 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 6NDL38	69 -3	0.39 -0.03	7.1 +0.1	6 =	91 -1	close	4 Ω vs 8 Ω: amp load changes	+
B&C 6NDL38	70 -2	0.5 +0.08	8.9 +1.9	6 =	93 +1	usable	16 Ω vs 8 Ω: amp load changes	+
B&C 6PS44	71 -1	0.33 -0.09	7 =	4.5 -1.5	93 +1	usable	Xmax 4.5 mm < 6 mm: lower excursion-limited SPL	+
B&C 6CLA51	89 +17	0.41 -0.01	5.7 -1.3	5.5 -0.5	93.5 +1.5	usable	16 Ω vs 8 Ω: amp load changes · Xmax 5.5 mm < 6 mm: lower excursion-limited SPL	+
B&C 6PS38	75 +3	0.3 -0.12	8 +1	6 =	94 +2	usable		+
Beyma 6CMV2	90 +18	0.34 -0.08	6.5 -0.5	5.7 -0.3	94 +2	usable	Xmax 5.7 mm < 6 mm: lower excursion-limited SPL	+
18 Sound 6NTLW2000	86 +14	0.38 -0.04	4.8 -2.2	4.9 -1.1	93 +1	usable	16 Ω vs 8 Ω: amp load changes · Xmax 4.9 mm < 6 mm: lower excursion-limited SPL	+
Beyma 6P200Fe	66 -6	0.35 -0.07	8.8 +1.8	4 -2	93 +1	usable	16 Ω vs 8 Ω: amp load changes · Xmax 4 mm < 6 mm: lower excursion-limited SPL	+
18 Sound 6NTLW2000	86 +14	0.35 -0.07	4.6 -2.4	4.9 -1.1	93 +1	usable	Xmax 4.9 mm < 6 mm: lower excursion-limited SPL	+
Oberton 6NB150	62.32 -9.68	0.28 -0.14	9.3 +2.3	5.5 -0.5	92 =	usable	Xmax 5.5 mm < 6 mm: lower excursion-limited SPL	+

Compare the closest 3 against the 6NDL38 →

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.