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Faital PRO 4FE42

4" · 8 Ω · 40 W · 94 dB · datasheet ↗

Thiele-Small parameters

Nominal size4"
Impedance8 Ω
Fs110 Hz
Qts0.47
Qes0.5
Qms8
Vas1.9 L
Sd50.9 cm²
Xmax2.83 mm
Re5.4 Ω
Mms4 g
Pe40 W
Sensitivity94 dB

Alignment hint

EBP220 · ported
Sealed Vb (Qtc ≈ 0.71)≈ 1.5 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
Faital PRO 4FE42110 =0.38 -0.091.8 -0.12.83 =93 -1close4 Ω vs 8 Ω: amp load changes+
LaVoce WSN041.00-16106 -40.36 -0.111.96 +0.064.3 +1.4791 -3usable16 Ω vs 8 Ω: amp load changes+
Faital PRO 4FE32100 -100.61 +0.142.3 +0.42.73 -0.191 -3usable30 W vs 40 W: lower power handling · Xmax 2.73 mm < 2.83 mm: lower excursion-limited SPL+
LaVoce WSN041.00104 -60.3 -0.171.79 -0.114 +1.1791.5 -2.5usable+
Eminence ALPHA 4-4120 +100.63 +0.161.76 -0.142.6 -0.2388 -6usable4 Ω vs 8 Ω: amp load changes · Xmax 2.6 mm < 2.83 mm: lower excursion-limited SPL+
Faital PRO 4FE32100 -100.53 +0.062.5 +0.61.73 -1.191 -3usable4 Ω vs 8 Ω: amp load changes · 30 W vs 40 W: lower power handling · Xmax 1.73 mm < 2.83 mm: lower excursion-limited SPL+
Sica 4 E 1 CS118 +80.39 -0.081.3 -0.62.2 -0.6390.2 -3.8usableXmax 2.2 mm < 2.83 mm: lower excursion-limited SPL+
B&C 4NDF34110 =0.27 -0.21.6 -0.33.8 +0.9792 -2usable+
Eminence ALPHA 4-8123 +130.75 +0.281.94 +0.042.6 -0.2388 -6usableXmax 2.6 mm < 2.83 mm: lower excursion-limited SPL+
Faital PRO 4FE35100 -100.83 +0.362.4 +0.52.73 -0.191 -3risky30 W vs 40 W: lower power handling · Xmax 2.73 mm < 2.83 mm: lower excursion-limited SPL+

Compare the closest 3 against the 4FE42 →

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.