JBL 2241G

18" · 4 Ω · 600 W · 101.9 dB

Thiele-Small parameters

Nominal size	18"
Impedance	4 Ω
Fs	35 Hz
Qts	0.4
Qes	0.43
Qms	5.7
Vas	310 L
Sd	1240 cm²
Xmax	7.5 mm
Re	2.5 Ω
Bl	13.6 T·m
Mms	143.8 g
Pe	600 W
Sensitivity	101.9 dB

Alignment hint

EBP	81 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 145.9 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
JBL 2241H	35 =	0.4 =	310 =	7.6 +0.1	98.9 -3	close	8 Ω vs 4 Ω: amp load changes	+
JBL 2042H	39 +4	0.404 =	337 +27	7.1 -0.4	101.3 -0.6	close	8 Ω vs 4 Ω: amp load changes · Xmax 7.1 mm < 7.5 mm: lower excursion-limited SPL	+
Beyma 18G550 v2018	33 -2	0.396 =	290 -20	9 +1.5	97.5 -4.4	close	8 Ω vs 4 Ω: amp load changes	+
Beyma 18G550/S-8	33 -2	0.396 =	290 -20	9.3 +1.8	97.5 -4.4	close	8 Ω vs 4 Ω: amp load changes	+
DAS Audio S1846 vp1	36.3 +1.3	0.403 =	389.4 +79.4	8 +0.5	98.7 -3.2	close	8 Ω vs 4 Ω: amp load changes	+
PHL Audio 7050	36 +1	0.369 -0.03	260 -50	7.5 =	99.3 -2.6	close	8 Ω vs 4 Ω: amp load changes	+
PHL Audio 7081	34 -1	0.409 +0.01	267.6 -42.4	7.5 =	97.3 -4.6	close	8 Ω vs 4 Ω: amp load changes	+
PHL Audio 7090	36 +1	0.386 -0.01	260 -50	8 +0.5	98.2 -3.7	close	8 Ω vs 4 Ω: amp load changes	+
Beyma 18G400	36 +1	0.374 -0.03	300 -10	6 -1.5	99.2 -2.7	close	8 Ω vs 4 Ω: amp load changes · 400 W vs 600 W: lower power handling · Xmax 6 mm < 7.5 mm: lower excursion-limited SPL	+
Selenium 18SWS1100	34 -1	0.447 +0.05	316 +6	9.3 +1.8	97.8 -4.1	close	8 Ω vs 4 Ω: amp load changes	+

Compare the closest 3 against the 2241G →

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.