Focal 38WX

15" · 4 Ω · 450 W · 95.9 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	4 Ω
Fs	35 Hz
Qts	0.471
Qes	0.51
Qms	6.19
Vas	122.2 L
Sd	855.3 cm²
Xmax	6.8 mm
Re	3.3 Ω
Bl	15.7 T·m
Mms	173.5 g
Pe	450 W
Sensitivity	95.9 dB

Alignment hint

EBP	69 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 97.5 L

EBP 50-100: works in either a sealed or ported 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 15 PFS 3	39 +4	0.45 -0.02	135.5 +13.3	7 +0.2	95.9 =	close	8 Ω vs 4 Ω: amp load changes	+
JBL 2216Nd	36 +1	0.444 -0.03	140.7 +18.5	7.6 +0.8	95.1 -0.8	close	8 Ω vs 4 Ω: amp load changes	+
PHL Audio 5380 vp ref1	36.6 +1.6	0.463 -0.01	120 -2.2	5 -1.8	94.4 -1.5	close	8 Ω vs 4 Ω: amp load changes · 300 W vs 450 W: lower power handling · Xmax 5 mm < 6.8 mm: lower excursion-limited SPL	+
Eminence DEFINIMAX 4015 LF	42 +7	0.5 +0.03	115.5 -6.7	9 +2.2	96 +0.1	close	8 Ω vs 4 Ω: amp load changes	+
Eminence MAGNUM 15 LF	37 +2	0.457 -0.01	163 +40.8	7.9 +1.1	96.4 +0.5	close	8 Ω vs 4 Ω: amp load changes	+
B&C 15 PS 100 v2016	39 +4	0.436 -0.03	103 -19.2	7.2 +0.4	95 -0.9	close	8 Ω vs 4 Ω: amp load changes	+
Eminence OMEGA PRO-15-2KW-8	39.67 +4.67	0.44 -0.03	142.51 +20.31	7.4 +0.6	94.9 -1	close	8 Ω vs 4 Ω: amp load changes	+
Beyma 15LX60V2	42 +7	0.441 -0.03	105.5 -16.7	6.9 +0.1	96.3 +0.4	close	8 Ω vs 4 Ω: amp load changes	+
JBL 2216Nd vp	36 +1	0.429 -0.04	166.8 +44.6	8.1 +1.3	95.9 =	close	8 Ω vs 4 Ω: amp load changes	+
B&C 15PS100	39 +4	0.43 -0.04	103 -19.2	8 +1.2	95 -0.9	usable	8 Ω vs 4 Ω: amp load changes	+

Compare the closest 3 against the 38WX →

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.