Great Plains Audio 3184 GPA

18" · 8 Ω · 300 W · 98.5 dB · datasheet ↗

Thiele-Small parameters

Nominal size	18"
Impedance	8 Ω
Fs	24 Hz
Qts	0.219
Qes	0.26
Qms	1.38
Vas	690.9 L
Sd	1141.9 cm²
Xmax	6.4 mm
Re	6.5 Ω
Bl	20.9 T·m
Mms	116.3 g
Pe	300 W
Sensitivity	98.5 dB

Alignment hint

EBP	92 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 73.3 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
Altec 3184	24 =	0.219 =	690.9 =	6.4 =	98.5 =	close		+
Beyma 18GT200 v1	24.6 +0.6	0.213 -0.01	595 -95.9	5.8 -0.6	99.3 +0.8	close	Xmax 5.8 mm < 6.4 mm: lower excursion-limited SPL	+
RCF LP 18/551	21.7 -2.3	0.222 =	760 +69.1	10 +3.6	98.8 +0.3	close		+
McCauley B1860	23.9 -0.1	0.244 +0.02	723.6 +32.7	5.5 -0.9	99.1 +0.6	close	Xmax 5.5 mm < 6.4 mm: lower excursion-limited SPL	+
JBL 2245H	20 -4	0.24 +0.02	821.2 +130.3	8.5 +2.1	97.2 -1.3	usable		+
Electro-Voice DL18MT	24 =	0.269 +0.05	580.5 -110.4	5.59 -0.81	96.6 -1.9	usable	Xmax 5.59 mm < 6.4 mm: lower excursion-limited SPL	+
Eminence SIGMA PRO 18 A2 (prodance)	26 +2	0.299 +0.08	613 -77.9	6.1 -0.3	98.3 -0.2	usable	Xmax 6.1 mm < 6.4 mm: lower excursion-limited SPL	+
Eminence 111712	21.6 -2.4	0.288 +0.07	736.2 +45.3	5.8 -0.6	97.1 -1.4	usable	Xmax 5.8 mm < 6.4 mm: lower excursion-limited SPL	+
Eminence B-52	22.8 -1.2	0.229 +0.01	430 -260.9	6 -0.4	96.6 -1.9	usable	Xmax 6 mm < 6.4 mm: lower excursion-limited SPL	+
RCF L 18P200KN	22.3 -1.7	0.265 +0.05	550 -140.9	9 +2.6	96.4 -2.1	usable		+

Compare the closest 3 against the 3184 GPA →

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.