JBL GT4-10

10" · 4 Ω · 250 W · 88.6 dB

Thiele-Small parameters

Nominal size	10"
Impedance	4 Ω
Fs	29.6 Hz
Qts	0.421
Qes	0.45
Qms	6.45
Vas	36.1 L
Sd	346 cm²
Xmax	7.1 mm
Re	3.63 Ω
Bl	14.2 T·m
Mms	134.4 g
Pe	250 W
Sensitivity	88.6 dB

Alignment hint

EBP	66 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 19.8 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
Infinity KAPPA PERFECT 10	28.4 -1.2	0.419 =	32.1 -4	7.1 =	87.1 -1.5	close	8 Ω vs 4 Ω: amp load changes	+
Infinity 1030W	29.62 +0.02	0.39 -0.03	35.72 -0.38	12.25 +5.15	88 -0.6	close		+
Infinity REFERENCE 1060W	29 -0.6	0.42 =	32.9 -3.2	13.0048 +5.9	88 -0.6	close		+
JBL GTO 1014D	29.7 +0.1	0.439 +0.02	30.2 -5.9	7.3 +0.2	87.6 -1	close		+
Infinity 1062W 2-8	30.4 +0.8	0.426 +0.01	33.7 -2.4	6.5 -0.6	91.7 +3.1	close	2 Ω vs 4 Ω: amp load changes · Xmax 6.5 mm < 7.1 mm: lower excursion-limited SPL	+
Dayton Audio TIT280C-4	29.6 =	0.442 +0.02	28.3 -7.8	8.6 +1.5	87.8 -0.8	close		+
Focal P25DB	27.5 -2.1	0.431 +0.01	40.7 +4.6	7.5 +0.4	91.2 +2.6	close	2 Ω vs 4 Ω: amp load changes	+
Alpine SWA-10S4	32 +2.4	0.42 =	41 +4.9	10 +2.9	86.6 -2	close		+
JBL GTO 1014	28.7 -0.9	0.456 +0.04	29.2 -6.9	7.3 +0.2	87.8 -0.8	close		+
Dayton Audio TS280D-4	25.6 -4	0.404 -0.02	33.7 -2.4	8.3 +1.2	87.1 -1.5	close		+

Compare the closest 3 against the GT4-10 →

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.