JBL 2203H

12" · 8 Ω · 100 W · 93.7 dB

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	16 Hz
Qts	0.137
Qes	0.14
Qms	6
Vas	399.3 L
Sd	527.1 cm²
Xmax	5.1 mm
Re	6.3 Ω
Bl	20.9 T·m
Mms	96.5 g
Pe	100 W
Sensitivity	93.7 dB

Alignment hint

EBP	114 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 15.6 L

EBP > 100: favours a ported (bass-reflex) 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
JBL 124A	16 =	0.137 =	399.3 =	5.1 =	93.7 =	close		+
JBL 2203A	16 =	0.137 =	399.3 =	5.1 =	93.7 =	close		+
Fluxmag 1201-H-A	15.5 -0.5	0.128 -0.01	535.5 +136.2	4 -1.1	95.3 +1.6	usable	Xmax 4 mm < 5.1 mm: lower excursion-limited SPL	+
Klipsch K31	19 +3	0.185 +0.05	386 -13.3	5 -0.1	94.8 +1.1	usable	Xmax 5 mm < 5.1 mm: lower excursion-limited SPL	+
Focal AUDIOM 12A	21.5 +5.5	0.165 +0.03	489 +89.7	4.5 -0.6	97.8 +4.1	usable	Xmax 4.5 mm < 5.1 mm: lower excursion-limited SPL	+
JBL 122A	17 +1	0.232 +0.1	339.8 -59.5	6.9 +1.8	91.9 -1.8	usable		+
Vifa M30W0-49-08	21 +5	0.225 +0.09	400 +0.7	6 +0.9	95.2 +1.5	usable		+
Monacor SPH-300CTC	18 +2	0.185 +0.05	225 -174.3	5.4 +0.3	94.6 +0.9	usable	4 Ω vs 8 Ω: amp load changes	+
Fertin Acoustics 30SM8	21.7 +5.7	0.146 +0.01	324 -75.3	3 -2.1	96.5 +2.8	usable	50 W vs 100 W: lower power handling · Xmax 3 mm < 5.1 mm: lower excursion-limited SPL	+
Tannoy HPD 315 vp modifié	15.3 -0.7	0.194 +0.06	513.9 +114.6	3 -2.1	93.2 -0.5	usable	60 W vs 100 W: lower power handling · Xmax 3 mm < 5.1 mm: lower excursion-limited SPL	+

Compare the closest 3 against the 2203H →

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.