Celestion BN15-300S-4

15" · 4 Ω · 300 W · 101.4 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	4 Ω
Fs	50 Hz
Qts	0.537
Qes	0.58
Qms	7.26
Vas	138.9 L
Sd	854.9 cm²
Xmax	2.5 mm
Re	2.71 Ω
Bl	10.5 T·m
Mms	74.7 g
Pe	300 W
Sensitivity	101.4 dB

Alignment hint

EBP	86 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 189.3 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
Celestion TF1525E 4 Ohms	49.8 -0.2	0.493 -0.04	128.2 -10.7	3.5 +1	100.7 -0.7	close		+
JBL 2032H	57 +7	0.541 =	133.1 -5.8	4.6 +2.1	100.9 -0.5	close	8 Ω vs 4 Ω: amp load changes	+
Audax PR380T0 vp_d	50.5 +0.5	0.472 -0.07	137.8 -1.1	3.3 +0.8	98.8 -2.6	close	8 Ω vs 4 Ω: amp load changes · 150 W vs 300 W: lower power handling	+
JBL 2155H	53 +3	0.474 -0.06	164.2 +25.3	2.5 =	101.4 =	close	8 Ω vs 4 Ω: amp load changes · 150 W vs 300 W: lower power handling	+
Celestion TF 1525E	49.8 -0.2	0.493 -0.04	128.2 -10.7	3.5 +1	97.6 -3.8	close	8 Ω vs 4 Ω: amp load changes	+
18 Sound 15W500	50 =	0.52 -0.02	189 +50.1	4 +1.5	100.5 -0.9	close	8 Ω vs 4 Ω: amp load changes	+
Celestion TF1525E	49.8 -0.2	0.5 -0.04	128.19 -10.71	3.5 +1	96.6 -4.8	usable		+
RCF L 17/64AF	51 +1	0.468 -0.07	130 -8.9	4 +1.5	98.8 -2.6	usable	8 Ω vs 4 Ω: amp load changes · 150 W vs 300 W: lower power handling	+
Celestion TF 1525 v2020	47 -3	0.594 +0.06	152.5 +13.6	2.5 =	97.6 -3.8	usable	8 Ω vs 4 Ω: amp load changes	+
Jensen BP15/250	47 -3	0.503 -0.03	133.1 -5.8	3.4 +0.9	96.7 -4.7	usable	8 Ω vs 4 Ω: amp load changes	+

Compare the closest 3 against the BN15-300S-4 →

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.