JBL 252G

12" · 8 Ω · 250 W · 93.8 dB

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	23 Hz
Qts	0.25
Qes	0.26
Qms	6.3
Vas	178 L
Sd	530 cm²
Xmax	7 mm
Re	4.4 Ω
Bl	16.1 T·m
Mms	105.9 g
Pe	250 W
Sensitivity	93.8 dB

Alignment hint

EBP	88 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 25.4 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
Scan-Speak 32W/4878T01	23 =	0.286 +0.04	170 -8	7 =	94.5 +0.7	close	4 Ω vs 8 Ω: amp load changes · 150 W vs 250 W: lower power handling	+
JBL 2214H	23 =	0.244 -0.01	223.7 +45.7	6.6 -0.4	93.9 +0.1	close	Xmax 6.6 mm < 7 mm: lower excursion-limited SPL	+
Infinity TWEELVE vp	22 -1	0.242 -0.01	158 -20	10 +3	93.3 -0.5	close		+
Infinity BETA12	22 -1	0.242 -0.01	158 -20	10 +3	94.8 +1	close	4 Ω vs 8 Ω: amp load changes	+
JBL 128-H vp ca2	21.6 -1.4	0.24 -0.01	214.6 +36.6	7.7 +0.7	93.1 -0.7	close	150 W vs 250 W: lower power handling	+
AE Speakers TD12H	26.7 +3.7	0.234 -0.02	160 -18	7 =	93.7 -0.1	close		+
AE Speakers TD12H8	26.7 +3.7	0.234 -0.02	160 -18	7 =	93.7 -0.1	close		+
Eminence W1238R	21.5 -1.5	0.252 =	236.6 +58.6	8.2 +1.2	93.6 -0.2	close	150 W vs 250 W: lower power handling	+
TVM ARN 312-00/4	22 -1	0.289 +0.04	206 +28	6.4 -0.6	93.8 =	close	4 Ω vs 8 Ω: amp load changes · 100 W vs 250 W: lower power handling · Xmax 6.4 mm < 7 mm: lower excursion-limited SPL	+
JBL 128-H vp ca1	21.2 -1.8	0.233 -0.02	222.7 +44.7	7.8 +0.8	93.1 -0.7	close	150 W vs 250 W: lower power handling	+

Compare the closest 3 against the 252G →

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.