P.Audio GST-181200

18" · 8 Ω · 1200 W · 93.2 dB

Thiele-Small parameters

Nominal size	18"
Impedance	8 Ω
Fs	35 Hz
Qts	0.54
Qes	0.57
Qms	13.73
Vas	180.2 L
Sd	1208 cm²
Xmax	6 mm
Re	5.6 Ω
Bl	22.2 T·m
Mms	238.91 g
Pe	1200 W
Sensitivity	93.2 dB

Alignment hint

EBP	61 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 252.1 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
PD PD 186/2	34.2 -0.8	0.523 -0.02	192.2 +12	8.7 +2.7	94.5 +1.3	close	700 W vs 1200 W: lower power handling	+
Precision Devices PD 186/2	34.2 -0.8	0.523 -0.02	192.2 +12	8.7 +2.7	94.5 +1.3	close	700 W vs 1200 W: lower power handling	+
Dayton Audio PA465S-8	32.3 -2.7	0.569 +0.03	193 +12.8	9.9 +3.9	93.9 +0.7	close		+
Fane FC-185F01	36 +1	0.533 -0.01	205 +24.8	10.5 +4.5	95.6 +2.4	close		+
Wharfedale D592	35 =	0.547 +0.01	251 +70.8	6 =	94.6 +1.4	close	16 Ω vs 8 Ω: amp load changes · 400 W vs 1200 W: lower power handling	+
SB Audience ROSSO-18SW1000D	35 =	0.467 -0.07	164.3 -15.9	8.2 +2.2	95.3 +2.1	close		+
Eminence KILOMAX PRO 18	33 -2	0.557 +0.02	239.9 +59.7	10 +4	95.1 +1.9	usable		+
Eminence KILOMAX PRO 18 A	33 -2	0.557 +0.02	239.9 +59.7	10 +4	95.1 +1.9	usable		+
Selenium 18SW2P	36 +1	0.419 -0.12	179 -1.2	6.5 +0.5	96.4 +3.2	usable	600 W vs 1200 W: lower power handling	+
Selenium TORNADO 18SW3A	41 +6	0.55 +0.01	126.3 -53.9	7.8 +1.8	93.7 +0.5	usable	4 Ω vs 8 Ω: amp load changes	+

Compare the closest 3 against the GST-181200 →

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.