Faital PRO 15FH520-4 v2021

15" · 4 Ω · 600 W · 100.3 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	4 Ω
Fs	38 Hz
Qts	0.337
Qes	0.35
Qms	9
Vas	146.2 L
Sd	813 cm²
Xmax	7.4 mm
Re	2.7 Ω
Bl	14.3 T·m
Mms	111.2 g
Pe	600 W
Sensitivity	100.3 dB

Alignment hint

EBP	109 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 43 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
Faital PRO 15FH520-4	38 =	0.337 =	156.6 +10.4	7.8 +0.4	100.6 +0.3	close		+
Oberton 15MB500	41.5 +3.5	0.339 =	161.54 +15.34	7.75 +0.35	100 -0.3	close	8 Ω vs 4 Ω: amp load changes	+
PD PD 15BR40	38.7 +0.7	0.34 =	158.3 +12.1	7.9 +0.5	98.1 -2.2	close	8 Ω vs 4 Ω: amp load changes	+
Precision Devices PD 15BR40	38.7 +0.7	0.34 =	158.3 +12.1	7.9 +0.5	98.1 -2.2	close	8 Ω vs 4 Ω: amp load changes	+
Faital PRO 15FH500 vp2	40 +2	0.335 =	146.9 +0.7	6.7 -0.7	98.3 -2	close	8 Ω vs 4 Ω: amp load changes · Xmax 6.7 mm < 7.4 mm: lower excursion-limited SPL	+
Faital PRO 15FH500 vp1	40 +2	0.328 -0.01	146.1 -0.1	6.7 -0.7	98.4 -1.9	close	8 Ω vs 4 Ω: amp load changes · Xmax 6.7 mm < 7.4 mm: lower excursion-limited SPL	+
Faital PRO 15FH520	38 =	0.34 =	153.2 +7	9.15 +1.75	97 -3.3	close		+
BMS 15S330	39 +1	0.32 -0.02	152 +5.8	8 +0.6	98 -2.3	close	8 Ω vs 4 Ω: amp load changes	+
RCF L 15P200AK-II	38 =	0.336 =	139 -7.2	8.3 +0.9	96.3 -4	close	8 Ω vs 4 Ω: amp load changes	+
Beyma 15MCB700	44 +6	0.34 =	148 +1.8	7 -0.4	99 -1.3	close	8 Ω vs 4 Ω: amp load changes · Xmax 7 mm < 7.4 mm: lower excursion-limited SPL	+

Compare the closest 3 against the 15FH520-4 v2021 →

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)

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