JBL G135-A

15" · 8 Ω · 200 W · 99.1 dB

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	45 Hz
Qts	0.473
Qes	0.51
Qms	6.6
Vas	218 L
Sd	896.1 cm²
Xmax	5.2 mm
Re	6 Ω
Bl	14.7 T·m
Mms	64.6 g
Pe	200 W
Sensitivity	99.1 dB

Alignment hint

EBP	88 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 176.5 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
Eminence DELTA 15 LFC	38.7 -6.3	0.47 =	221.6 +3.6	6 +0.8	100 +0.9	close	4 Ω vs 8 Ω: amp load changes	+
Eminence 040580-67-95380096-151035	44.5 -0.5	0.538 +0.07	204.9 -13.1	5.6 +0.4	100.3 +1.2	close	4 Ω vs 8 Ω: amp load changes	+
Jensen BN15/350A vp	45 =	0.461 -0.01	163.1 -54.9	5.5 +0.3	98.8 -0.3	close		+
Selenium 38GPT12 vp2	39.9 -5.1	0.469 =	242.8 +24.8	5 -0.2	97.8 -1.3	close	Xmax 5 mm < 5.2 mm: lower excursion-limited SPL	+
Jensen BN15/350SB vp	45 =	0.461 -0.01	163 -55	5 -0.2	98.8 -0.3	close	Xmax 5 mm < 5.2 mm: lower excursion-limited SPL	+
DAS Audio 15LM	40.4 -4.6	0.49 +0.02	206.6 -11.4	5 -0.2	97.1 -2	close	Xmax 5 mm < 5.2 mm: lower excursion-limited SPL	+
RCF L 15P530	45 =	0.478 +0.01	160 -58	6.2 +1	98.5 -0.6	close		+
P.Audio BM-15W	39.8 -5.2	0.473 =	200.1 -17.9	5 -0.2	96.4 -2.7	close	Xmax 5 mm < 5.2 mm: lower excursion-limited SPL	+
LaVoce WSF152.02	43 -2	0.527 +0.05	210 -8	4.3 -0.9	98.3 -0.8	close	Xmax 4.3 mm < 5.2 mm: lower excursion-limited SPL	+
Beyma 15 KX	45 =	0.496 +0.02	203 -15	3.5 -1.7	99 -0.1	close	Xmax 3.5 mm < 5.2 mm: lower excursion-limited SPL	+

Compare the closest 3 against the G135-A →

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.