JBL GTO 1514

15" · 4 Ω · 350 W · 91.9 dB

Thiele-Small parameters

Nominal size	15"
Impedance	4 Ω
Fs	25.1 Hz
Qts	0.484
Qes	0.52
Qms	7.08
Vas	153.5 L
Sd	830 cm²
Xmax	7.3 mm
Re	3.8 Ω
Bl	17.1 T·m
Mms	252.9 g
Pe	350 W
Sensitivity	91.9 dB

Alignment hint

EBP	48 · sealed
Sealed Vb (Qtc ≈ 0.71)	≈ 135.3 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
Dayton Audio TIT400C	24.2 -0.9	0.483 =	154.3 +0.8	13.3 +6	91.5 -0.4	close		+
JBL W15GTI	25.2 +0.1	0.476 -0.01	132.2 -21.3	10.2 +2.9	92.5 +0.6	close		+
JBL W15GTI MK2	25.2 +0.1	0.476 -0.01	132.2 -21.3	10.2 +2.9	92.5 +0.6	close		+
Focal 40V1	26.8 +1.7	0.459 -0.02	165.7 +12.2	7.5 +0.2	93.8 +1.9	close		+
JBL P1520	25.4 +0.3	0.502 +0.02	118.9 -34.6	8.1 +0.8	90.8 -1.1	close		+
JBL P1520e	25.4 +0.3	0.502 +0.02	118.9 -34.6	8.1 +0.8	90.8 -1.1	close		+
MTX Audio T6154	27.3 +2.2	0.538 +0.05	159.7 +6.2	9.2 +1.9	93.2 +1.3	close		+
Audiobahn AW1571T	28.2 +3.1	0.49 +0.01	133.088 -20.41	11 +3.7	89.2 -2.7	usable		+
Pyle Audio PLPW15D	29 +3.9	0.459 -0.02	195.7 +42.2	8 +0.7	92.3 +0.4	usable	8 Ω vs 4 Ω: amp load changes	+
Goldwood GW-15PC/8	32.9 +7.8	0.477 -0.01	153.1 -0.4	6 -1.3	92.5 +0.6	usable	8 Ω vs 4 Ω: amp load changes · 275 W vs 350 W: lower power handling · Xmax 6 mm < 7.3 mm: lower excursion-limited SPL	+

Compare the closest 3 against the GTO 1514 →

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.