PHL Audio 4531 v2023

12" · 8 Ω · 300 W · 95.9 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	46 Hz
Qts	0.399
Qes	0.43
Qms	5.51
Vas	71.9 L
Sd	531 cm²
Xmax	5.6 mm
Re	5.3 Ω
Bl	15.3 T·m
Mms	65.8 g
Pe	300 W
Sensitivity	95.9 dB

Alignment hint

EBP	107 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 33.6 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
PHL Audio 4511	48 +2	0.406 +0.01	74.1 +2.2	5.4 -0.2	96.2 +0.3	close	Xmax 5.4 mm < 5.6 mm: lower excursion-limited SPL	+
P.Audio SN-12LF	48 +2	0.399 =	67.9 -4	7.2 +1.6	96 +0.1	close		+
Sica 12 PF 3	47 +1	0.39 -0.01	76.5 +4.6	5.5 -0.1	96.4 +0.5	close	Xmax 5.5 mm < 5.6 mm: lower excursion-limited SPL	+
SICA 12 S 3 CP	44 -2	0.405 +0.01	67.5 -4.4	6 +0.4	95 -0.9	close		+
Faital PRO 12FH530	45 -1	0.39 -0.01	75.6 +3.7	7.5 +1.9	97 +1.1	close	16 Ω vs 8 Ω: amp load changes	+
Fane SOVEREIGN 12-300 v2024	47 +1	0.4 =	80 +8.1	5 -0.6	96.3 +0.4	close	Xmax 5 mm < 5.6 mm: lower excursion-limited SPL	+
Celestion FTX1225 v2024	47.3 +1.3	0.396 =	84.6 +12.7	5.9 +0.3	96.8 +0.9	close		+
SB Audience BIANCO-12MW200	50 +4	0.389 -0.01	68.7 -3.2	6 +0.4	97.2 +1.3	close		+
Jensen SMOOTH BS 12N/250A	47 +1	0.425 +0.03	81.3 +9.4	5.5 -0.1	96.4 +0.5	close	Xmax 5.5 mm < 5.6 mm: lower excursion-limited SPL	+
Faital PRO 12FH500	48 +2	0.37 -0.03	77.4 +5.5	7.25 +1.65	96 +0.1	close	16 Ω vs 8 Ω: amp load changes	+

Compare the closest 3 against the 4531 v2023 →

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.