JBL K145

15" · 16 Ω · 150 W · 97 dB

Thiele-Small parameters

Nominal size	15"
Impedance	16 Ω
Fs	35 Hz
Qts	0.286
Qes	0.3
Qms	6
Vas	243.5 L
Sd	791.6 cm²
Xmax	4.7 mm
Re	8.8 Ω
Bl	21.9 T·m
Mms	74.6 g
Pe	150 W
Sensitivity	97 dB

Alignment hint

EBP	117 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 47.6 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
Eminence MAGNUM 15 HO	33 -2	0.27 -0.02	241 -2.5	4.8 +0.1	97.9 +0.9	close	8 Ω vs 16 Ω: amp load changes	+
RCF L 15/542K	36 +1	0.3 +0.01	250 +6.5	5 +0.3	98.8 +1.8	close	8 Ω vs 16 Ω: amp load changes	+
Beyma 15 XT	33 -2	0.289 =	270 +26.5	5 +0.3	98 +1	close	8 Ω vs 16 Ω: amp load changes	+
Supravox 400 GMF PRO MK2	35 =	0.32 +0.03	247 +3.5	5.8 +1.1	97.9 +0.9	close	8 Ω vs 16 Ω: amp load changes	+
DAS Audio 15H	35 =	0.287 =	203 -40.5	6 +1.3	97.8 +0.8	close	8 Ω vs 16 Ω: amp load changes	+
18 Sound 15W750	39 +4	0.29 =	253 +9.5	8 +3.3	97 =	close	4 Ω vs 16 Ω: amp load changes	+
Monacor SP-15A/402PA	36 +1	0.316 +0.03	235 -8.5	5 +0.3	98.1 +1.1	close	8 Ω vs 16 Ω: amp load changes	+
Faital PRO 15PR400	35 =	0.31 +0.02	248.9 +5.4	5.75 +1.05	99 +2	close	4 Ω vs 16 Ω: amp load changes	+
Celestion BX15-4085HS8	35 =	0.27 -0.02	247.6 +4.1	6.5 +1.8	99.3 +2.3	close	8 Ω vs 16 Ω: amp load changes	+
Beyma 15WR400 v2020	36 +1	0.299 +0.01	236 -7.5	6.3 +1.6	99 +2	close	8 Ω vs 16 Ω: amp load changes	+

Compare the closest 3 against the K145 →

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.