Peavey LO MAX 18

18" · 8 Ω · 1200 W · 97.7 dB · datasheet ↗

Thiele-Small parameters

Nominal size	18"
Impedance	8 Ω
Fs	33.5 Hz
Qts	0.318
Qes	0.33
Qms	8.741
Vas	249.7 L
Sd	1237 cm²
Xmax	9.5 mm
Re	6.1 Ω
Bl	27.5 T·m
Mms	193.9 g
Pe	1200 W
Sensitivity	97.7 dB

Alignment hint

EBP	102 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 63.3 L

EBP > 100: favours a ported (bass-reflex) 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
18 Sound 18LW2400	33 -0.5	0.32 =	235 -14.7	9.5 =	98 +0.3	close	4 Ω vs 8 Ω: amp load changes	+
18 Sound 18LW2400	35 +1.5	0.31 -0.01	230 -19.7	9.5 =	98 +0.3	close		+
Fane COLOSSUS 18-1000	32 -1.5	0.319 =	236 -13.7	8.9 -0.6	97 -0.7	close	Xmax 8.9 mm < 9.5 mm: lower excursion-limited SPL	+
Faital PRO 18HP1010	35 +1.5	0.31 -0.01	225.9 -23.8	9.75 +0.25	98 +0.3	close	4 Ω vs 8 Ω: amp load changes	+
Ciare NDH18_4S	31 -2.5	0.319 =	239 -10.7	9.4 -0.1	96.5 -1.2	close	Xmax 9.4 mm < 9.5 mm: lower excursion-limited SPL	+
Dayton Audio APOLLO 18N	32 -1.5	0.338 +0.02	253.6 +3.9	9.1 -0.4	96.9 -0.8	close	Xmax 9.1 mm < 9.5 mm: lower excursion-limited SPL	+
Beyma 18P1000FE	33 -0.5	0.32 =	230 -19.7	8 -1.5	97.8 +0.1	close	Xmax 8 mm < 9.5 mm: lower excursion-limited SPL	+
Beyma 18" P1000Fe V2/S	33 -0.5	0.32 =	230 -19.7	8 -1.5	98 +0.3	close	Xmax 8 mm < 9.5 mm: lower excursion-limited SPL	+
Peavey LO MAX 18 v2011	33.5 =	0.321 =	294.4 +44.7	10.2 +0.7	98.9 +1.2	close		+
18 Sound 18LW2420	34 +0.5	0.31 -0.01	208 -41.7	10 +0.5	98 +0.3	close	4 Ω vs 8 Ω: amp load changes	+

Compare the closest 3 against the LO MAX 18 →

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.