Faital PRO 4FE35

4" · 4 Ω · 30 W · 91 dB · datasheet ↗

Thiele-Small parameters

Nominal size	4"
Impedance	4 Ω
Fs	100 Hz
Qts	0.73
Qes	0.9
Qms	3.9
Vas	2.4 L
Sd	51.9 cm²
Xmax	1.73 mm
Re	3.3 Ω
Mms	3.9 g
Pe	30 W
Sensitivity	91 dB

Alignment hint

EBP	111 · ported
Sealed Vb (Qtc ≈ 0.71)	Qts too high

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 4FE32	100 =	0.81 +0.08	2.4 =	1.83 +0.1	91 =	close	16 Ω vs 4 Ω: amp load changes	+
Faital PRO 4FE35	100 =	0.83 +0.1	2.4 =	2.73 +1	91 =	close	8 Ω vs 4 Ω: amp load changes	+
Faital PRO 4FE32	100 =	0.61 -0.12	2.3 -0.1	2.73 +1	91 =	close	8 Ω vs 4 Ω: amp load changes	+
Faital PRO 4FE32	100 =	0.53 -0.2	2.5 +0.1	1.73 =	91 =	usable		+
Faital PRO 4FE35	100 =	1.16 +0.43	2.3 -0.1	1.83 +0.1	91 =	usable	16 Ω vs 4 Ω: amp load changes	+
Eminence ALPHA 4-8	123 +23	0.75 +0.02	1.94 -0.46	2.6 +0.87	88 -3	usable	8 Ω vs 4 Ω: amp load changes	+
Eminence ALPHA 4-4	120 +20	0.63 -0.1	1.76 -0.64	2.6 +0.87	88 -3	usable		+
Faital PRO 4FE42	110 +10	0.47 -0.26	1.9 -0.5	2.83 +1.1	94 +3	usable	8 Ω vs 4 Ω: amp load changes	+
Sica 4 L 1 SL	108.3 +8.3	0.63 -0.1	1.2 -1.2	2.4 +0.67	86.2 -4.8	usable	8 Ω vs 4 Ω: amp load changes	+
LaVoce WSN041.00-16	106 +6	0.36 -0.37	1.96 -0.44	4.3 +2.57	91 =	risky	16 Ω vs 4 Ω: amp load changes	+

Compare the closest 3 against the 4FE35 →

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.