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B&C 4NDF34

4" · 8 Ω · 100 W · 92 dB · datasheet ↗

Thiele-Small parameters

Nominal size4"
Impedance8 Ω
Fs110 Hz
Qts0.27
Qes0.28
Qms4.2
Vas1.6 L
Sd57 cm²
Xmax3.8 mm
Re5.5 Ω
Bl9 T·m
Mms6.1 g
Pe100 W
Sensitivity92 dB

Alignment hint

EBP393 · ported
Sealed Vb (Qtc ≈ 0.71)≈ 0.3 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

DriverFs (Hz)QtsVas (L)Xmax (mm)Sens (dB)FitNotesCompare
LaVoce WSN041.00104 -60.3 +0.031.79 +0.194 +0.291.5 -0.5close40 W vs 100 W: lower power handling+
LaVoce WSN041.00-16106 -40.36 +0.091.96 +0.364.3 +0.591 -1usable16 Ω vs 8 Ω: amp load changes · 40 W vs 100 W: lower power handling+
Faital PRO 4FE42110 =0.38 +0.111.8 +0.22.83 -0.9793 +1usable4 Ω vs 8 Ω: amp load changes · 40 W vs 100 W: lower power handling · Xmax 2.83 mm < 3.8 mm: lower excursion-limited SPL+
B&C 4NDS3479 -310.24 -0.032.6 +13.8 =89 -3usable+
Faital PRO 4FE42110 =0.47 +0.21.9 +0.32.83 -0.9794 +2usable40 W vs 100 W: lower power handling · Xmax 2.83 mm < 3.8 mm: lower excursion-limited SPL+
Sica 4 E 1 CS118 +80.39 +0.121.3 -0.32.2 -1.690.2 -1.8usable70 W vs 100 W: lower power handling · Xmax 2.2 mm < 3.8 mm: lower excursion-limited SPL+
Faital PRO 4FE44150 +400.33 +0.061.1 -0.51.67 -2.1397 +5risky40 W vs 100 W: lower power handling · Xmax 1.67 mm < 3.8 mm: lower excursion-limited SPL+
Eminence ALPHA 4-4120 +100.63 +0.361.76 +0.162.6 -1.288 -4risky4 Ω vs 8 Ω: amp load changes · 55 W vs 100 W: lower power handling · Xmax 2.6 mm < 3.8 mm: lower excursion-limited SPL+
Faital PRO 4FE32100 -100.61 +0.342.3 +0.72.73 -1.0791 -1risky30 W vs 100 W: lower power handling · Xmax 2.73 mm < 3.8 mm: lower excursion-limited SPL+
Faital PRO 4FE32100 -100.53 +0.262.5 +0.91.73 -2.0791 -1risky4 Ω vs 8 Ω: amp load changes · 30 W vs 100 W: lower power handling · Xmax 1.73 mm < 3.8 mm: lower excursion-limited SPL+

Compare the closest 3 against the 4NDF34 →

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.