Dayton Audio PA465S-8

18" · 8 Ω · 1000 W · 93.9 dB · datasheet ↗

Thiele-Small parameters

Nominal size	18"
Impedance	8 Ω
Fs	32.3 Hz
Qts	0.569
Qes	0.62
Qms	6.92
Vas	193 L
Sd	1225 cm²
Xmax	9.9 mm
Re	5.4 Ω
Bl	21.6 T·m
Mms	264.6 g
Pe	1000 W
Sensitivity	93.9 dB

Alignment hint

EBP	52 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 354.6 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 +1.9	0.523 -0.05	192.2 -0.8	8.7 -1.2	94.5 +0.6	close	700 W vs 1000 W: lower power handling · Xmax 8.7 mm < 9.9 mm: lower excursion-limited SPL	+
Precision Devices PD 186/2	34.2 +1.9	0.523 -0.05	192.2 -0.8	8.7 -1.2	94.5 +0.6	close	700 W vs 1000 W: lower power handling · Xmax 8.7 mm < 9.9 mm: lower excursion-limited SPL	+
Eminence KILOMAX PRO 18	33 +0.7	0.557 -0.01	239.9 +46.9	10 +0.1	95.1 +1.2	close		+
Eminence KILOMAX PRO 18 A	33 +0.7	0.557 -0.01	239.9 +46.9	10 +0.1	95.1 +1.2	close		+
Fane FC-185F01	36 +3.7	0.533 -0.04	205 +12	10.5 +0.6	95.6 +1.7	close		+
Peerless FSL-1830R09-08	32.7 +0.4	0.587 +0.02	283.1 +90.1	9.6 -0.3	94.6 +0.7	close	600 W vs 1000 W: lower power handling · Xmax 9.6 mm < 9.9 mm: lower excursion-limited SPL	+
18 Sound 18TLW3000	33 +0.7	0.41 -0.16	185 -8	12 +2.1	95 +1.1	usable		+
P.Audio GST-181200	35 +2.7	0.54 -0.03	180.2 -12.8	6 -3.9	93.2 -0.7	usable	Xmax 6 mm < 9.9 mm: lower excursion-limited SPL	+
Resonant Engineering XXX-18	29 -3.3	0.569 =	244.2 +51.2	16 +6.1	97.9 +4	usable	2 Ω vs 8 Ω: amp load changes	+
Eminence KILOMAX 18	33.8 +1.5	0.527 -0.04	281.4 +88.4	10 +0.1	96.4 +2.5	usable		+

Compare the closest 3 against the PA465S-8 →

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.