Jensen C15N

15" · 4 Ω · 50 W · 101.6 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	4 Ω
Fs	74.2 Hz
Qts	0.87
Qes	1.02
Qms	5.93
Vas	89.4 L
Sd	754.7 cm²
Xmax	1.5 mm
Re	3.12 Ω
Bl	7.7 T·m
Mms	41.1 g
Pe	50 W
Sensitivity	101.6 dB

Alignment hint

EBP	73 · flexible
Sealed Vb (Qtc ≈ 0.71)	Qts too high

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
Jensen C15K	73 -1.2	0.856 -0.01	87.6 -1.8	1 -0.5	98.5 -3.1	usable	8 Ω vs 4 Ω: amp load changes · Xmax 1 mm < 1.5 mm: lower excursion-limited SPL	+
Jensen NEO 15-150-16	74.8 +0.6	0.673 -0.2	65.6 -23.8	2 +0.5	99.3 -2.3	usable	8 Ω vs 4 Ω: amp load changes	+
RCF L 15P02 vp FREDO51	80 +5.8	0.518 -0.35	77 -12.4	2.4 +0.9	101.1 -0.5	usable	8 Ω vs 4 Ω: amp load changes	+
Eminence LEGEND 1518	82 +7.8	0.927 +0.06	65.4 -24	0.8 -0.7	97.9 -3.7	usable	8 Ω vs 4 Ω: amp load changes · Xmax 0.8 mm < 1.5 mm: lower excursion-limited SPL	+
JBL 2150	55 -19.2	0.637 -0.23	99.1 +9.7	2 +0.5	97.1 -4.5	usable	8 Ω vs 4 Ω: amp load changes	+
Audax PR380T2	52 -22.2	0.522 -0.35	92 +2.6	2.7 +1.2	99.4 -2.2	risky		+
the box Speaker 15-300/8-A	52.6 -21.6	0.64 -0.23	100.3 +10.9	4.6 +3.1	96.8 -4.8	risky	8 Ω vs 4 Ω: amp load changes	+
JBL 615H	55 -19.2	0.603 -0.27	112 +22.6	3.7 +2.2	98.1 -3.5	risky	8 Ω vs 4 Ω: amp load changes	+
RCF LF 15G302 vp baptiste	56.8 -17.4	0.561 -0.31	87 -2.4	6 +4.5	97.1 -4.5	risky	8 Ω vs 4 Ω: amp load changes	+
Audax PR380T0 vp_g	56.9 -17.3	0.537 -0.33	108.5 +19.1	2.8 +1.3	98.6 -3	risky	8 Ω vs 4 Ω: amp load changes	+

Compare the closest 3 against the C15N →

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.