Faital PRO 4FE44

4" · 8 Ω · 40 W · 97 dB · datasheet ↗

Thiele-Small parameters

Nominal size	4"
Impedance	8 Ω
Fs	150 Hz
Qts	0.33
Qes	0.35
Qms	5.23
Vas	1.1 L
Sd	51.5 cm²
Xmax	1.67 mm
Re	4.7 Ω
Mms	3.9 g
Pe	40 W
Sensitivity	97 dB

Alignment hint

EBP	429 · 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

Driver	Fs (Hz)	Qts	Vas (L)	Xmax (mm)	Sens (dB)	Fit	Notes	Compare
Sica 4 E 1 CS	118 -32	0.39 +0.06	1.3 +0.2	2.2 +0.53	90.2 -6.8	usable		+
Faital PRO 4FE42	110 -40	0.38 +0.05	1.8 +0.7	2.83 +1.16	93 -4	risky	4 Ω vs 8 Ω: amp load changes	+
B&C 4NDF34	110 -40	0.27 -0.06	1.6 +0.5	3.8 +2.13	92 -5	risky		+
LaVoce WSN041.00	104 -46	0.3 -0.03	1.79 +0.69	4 +2.33	91.5 -5.5	risky		+
LaVoce WSN041.00-16	106 -44	0.36 +0.03	1.96 +0.86	4.3 +2.63	91 -6	risky	16 Ω vs 8 Ω: amp load changes	+
Faital PRO 4FE42	110 -40	0.47 +0.14	1.9 +0.8	2.83 +1.16	94 -3	risky		+
Sica 4 L 1 SL	108.3 -41.7	0.63 +0.3	1.2 +0.1	2.4 +0.73	86.2 -10.8	risky		+
Eminence ALPHA 4-4	120 -30	0.63 +0.3	1.76 +0.66	2.6 +0.93	88 -9	risky	4 Ω vs 8 Ω: amp load changes	+
Faital PRO 4FE32	100 -50	0.53 +0.2	2.5 +1.4	1.73 +0.06	91 -6	risky	4 Ω vs 8 Ω: amp load changes · 30 W vs 40 W: lower power handling	+
Sica 4 D 0.8 CS	140 -10	0.92 +0.59	1.2 +0.1	1.3 -0.37	87.5 -9.5	risky	4 Ω vs 8 Ω: amp load changes · Xmax 1.3 mm < 1.67 mm: lower excursion-limited SPL	+

Compare the closest 3 against the 4FE44 →

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.