BMS 18S430vv2

18" · 8 Ω · 1200 W · 96 dB

Thiele-Small parameters

Nominal size	18"
Impedance	8 Ω
Fs	31 Hz
Qts	0.34
Qes	0.36
Qms	6
Vas	262 L
Sd	1213 cm²
Xmax	8 mm
Re	4.8 Ω
Bl	23.5 T·m
Mms	210 g
Pe	1200 W
Sensitivity	96 dB

Alignment hint

EBP	86 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 78.8 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
BMS 18N830vv2	31 =	0.37 +0.03	262 =	8 =	96 =	close		+
Dayton Audio APOLLO 18N	32 +1	0.338 =	253.6 -8.4	9.1 +1.1	96.9 +0.9	close		+
BMS 18N830V2	31 =	0.37 +0.03	262 =	8 =	94.9 -1.1	close	6 Ω vs 8 Ω: amp load changes · 550 W vs 1200 W: lower power handling	+
Eminence DEFINIMAX 4018 LF	32 +1	0.348 +0.01	237.9 -24.1	8.6 +0.6	96.4 +0.4	close		+
BMS 18S430	32.9 +1.9	0.33 -0.01	247 -15	7.5 -0.5	96 =	close	600 W vs 1200 W: lower power handling · Xmax 7.5 mm < 8 mm: lower excursion-limited SPL	+
Beyma 18P1000	32 +1	0.362 +0.02	245 -17	8 =	96.5 +0.5	close		+
Ciare NDH18_4S	31 =	0.319 -0.02	239 -23	9.4 +1.4	96.5 +0.5	close		+
B&C 18 PS 100 8 Ohms	30 -1	0.376 +0.04	245 -17	8 =	95.8 -0.2	close		+
Fane COLOSSUS 18XB v2016	33 +2	0.337 =	236 -26	7.5 -0.5	96.6 +0.6	close	Xmax 7.5 mm < 8 mm: lower excursion-limited SPL	+
Fane 18XBN	33 +2	0.337 =	236 -26	7.5 -0.5	96.8 +0.8	close	Xmax 7.5 mm < 8 mm: lower excursion-limited SPL	+

Compare the closest 3 against the 18S430vv2 →

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.