Peavey 1808-8 SPS BWX

18" · 8 Ω · 500 W · 96.6 dB

Thiele-Small parameters

Nominal size	18"
Impedance	8 Ω
Fs	37.4 Hz
Qts	0.587
Qes	0.637
Qms	7.55
Vas	368 L
Sd	1240 cm²
Xmax	4.6 mm
Re	6.71 Ω
Bl	16.26 T·m
Mms	106.7 g
Pe	500 W
Sensitivity	96.6 dB

Alignment hint

EBP	59 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 815.8 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
DAS Audio P-18	36 -1.4	0.583 =	314 -54	4.5 -0.1	96.3 -0.3	close	350 W vs 500 W: lower power handling · Xmax 4.5 mm < 4.6 mm: lower excursion-limited SPL	+
Peavey 1801-8 v1993	40.2 +2.8	0.586 =	321 -47	5 +0.4	98.1 +1.5	close	350 W vs 500 W: lower power handling	+
Fane 18-500	33 -4.4	0.563 -0.02	346 -22	6.3 +1.7	96.9 +0.3	close		+
Fane SOVEREIGN 18-500	33 -4.4	0.563 -0.02	346 -22	6.3 +1.7	96.9 +0.3	close		+
Peavey PRO RIDER 18 1808-8 AL CP	36 -1.4	0.55 -0.04	296.475 -71.52	4.6 =	95.6 -1	close		+
Peavey 1801-8 LT BW	40.2 +2.8	0.61 +0.02	284.9 -83.1	5 +0.4	96.5 -0.1	close	350 W vs 500 W: lower power handling	+
Beyma SM118/N	36 -1.4	0.492 -0.09	300 -68	5.5 +0.9	97.2 +0.6	usable		+
Peavey 1801-8 BWX	40.4 +3	0.525 -0.06	284.9 -83.1	5 +0.4	98.2 +1.6	usable	350 W vs 500 W: lower power handling	+
Peavey 1801-8	40.4 +3	0.523 -0.06	284.9 -83.1	5 +0.4	98.2 +1.6	usable	350 W vs 500 W: lower power handling	+
Peerless FSL-1830R09-08	32.7 -4.7	0.587 =	283.1 -84.9	9.6 +5	94.6 -2	usable		+

Compare the closest 3 against the 1808-8 SPS BWX →

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.