JBL GTO 1502D

15" · 1 Ω · 300 W · 98.1 dB

Thiele-Small parameters

Nominal size	15"
Impedance	1 Ω
Fs	25 Hz
Qts	0.504
Qes	0.55
Qms	6.08
Vas	171 L
Sd	855 cm²
Xmax	8 mm
Re	0.96 Ω
Bl	8.2 T·m
Mms	242.9 g
Pe	300 W
Sensitivity	98.1 dB

Alignment hint

EBP	45 · sealed
Sealed Vb (Qtc ≈ 0.71)	≈ 176.6 L

EBP < 50: favours a sealed (closed) 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
Focal 40V1	26.8 +1.8	0.459 -0.04	165.7 -5.3	7.5 -0.5	93.8 -4.3	usable	4 Ω vs 1 Ω: amp load changes · Xmax 7.5 mm < 8 mm: lower excursion-limited SPL	+
MTX Audio T6154	27.3 +2.3	0.538 +0.03	159.7 -11.3	9.2 +1.2	93.2 -4.9	usable	4 Ω vs 1 Ω: amp load changes	+
JBL GTO 1514	25.1 +0.1	0.484 -0.02	153.5 -17.5	7.3 -0.7	91.9 -6.2	usable	4 Ω vs 1 Ω: amp load changes · Xmax 7.3 mm < 8 mm: lower excursion-limited SPL	+
Hertz Audio ES380	24 -1	0.52 +0.02	220 +49	9 +1	93.7 -4.4	usable	4 Ω vs 1 Ω: amp load changes	+
Dayton Audio TIT400C	24.2 -0.8	0.483 -0.02	154.3 -16.7	13.3 +5.3	91.5 -6.6	usable	4 Ω vs 1 Ω: amp load changes	+
JBL W15GTI	25.2 +0.2	0.476 -0.03	132.2 -38.8	10.2 +2.2	92.5 -5.6	usable	4 Ω vs 1 Ω: amp load changes	+
JBL W15GTI MK2	25.2 +0.2	0.476 -0.03	132.2 -38.8	10.2 +2.2	92.5 -5.6	usable	4 Ω vs 1 Ω: amp load changes	+
Dayton Audio DCS380-4	22.9 -2.1	0.504 =	233.9 +62.9	8.4 +0.4	92.9 -5.2	usable	4 Ω vs 1 Ω: amp load changes	+
Hertz Audio ES380.1	24.2 -0.8	0.52 +0.02	183 +12	9 +1	88.2 -9.9	usable	4 Ω vs 1 Ω: amp load changes	+
Eminence MAGNUM 15 LF	37 +12	0.457 -0.05	163 -8	7.9 -0.1	96.4 -1.7	usable	8 Ω vs 1 Ω: amp load changes · Xmax 7.9 mm < 8 mm: lower excursion-limited SPL	+

Compare the closest 3 against the GTO 1502D →

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.