Peerless FSL-1830R09-08

18" · 8 Ω · 600 W · 94.6 dB · datasheet ↗

Thiele-Small parameters

Nominal size	18"
Impedance	8 Ω
Fs	32.7 Hz
Qts	0.587
Qes	0.61
Qms	15.46
Vas	283.1 L
Sd	1225.4 cm²
Xmax	9.6 mm
Re	7.14 Ω
Bl	20.6 T·m
Mms	176.1 g
Pe	600 W
Sensitivity	94.6 dB

Alignment hint

EBP	54 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 627.6 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
Eminence KILOMAX PRO 18	33 +0.3	0.557 -0.03	239.9 -43.2	10 +0.4	95.1 +0.5	close		+
Eminence KILOMAX PRO 18 A	33 +0.3	0.557 -0.03	239.9 -43.2	10 +0.4	95.1 +0.5	close		+
Radian 2218	33.8 +1.1	0.525 -0.06	286 +2.9	9 -0.6	95.5 +0.9	close	Xmax 9 mm < 9.6 mm: lower excursion-limited SPL	+
Eminence KILOMAX 18	33.8 +1.1	0.527 -0.06	281.4 -1.7	10 +0.4	96.4 +1.8	close		+
Radian 2218-8	33.8 +1.1	0.518 -0.07	282.9 -0.2	9 -0.6	95.5 +0.9	close	Xmax 9 mm < 9.6 mm: lower excursion-limited SPL	+
Dayton Audio PA465S-8	32.3 -0.4	0.569 -0.02	193 -90.1	9.9 +0.3	93.9 -0.7	close		+
SB Audience BIANCO-18SW500	30 -2.7	0.516 -0.07	335 +51.9	9.2 -0.4	95.8 +1.2	usable	Xmax 9.2 mm < 9.6 mm: lower excursion-limited SPL	+
Eminence KILOMAX PRO-18A	32 -0.7	0.47 -0.12	331.5 +48.4	10 +0.4	95.8 +1.2	usable		+
Resonant Engineering XXX-18	29 -3.7	0.569 -0.02	244.2 -38.9	16 +6.4	97.9 +3.3	usable	2 Ω vs 8 Ω: amp load changes	+
SB Audience 18SW800	33 +0.3	0.456 -0.13	258.1 -25	9.3 -0.3	96.8 +2.2	usable	Xmax 9.3 mm < 9.6 mm: lower excursion-limited SPL	+

Compare the closest 3 against the FSL-1830R09-08 →

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.