Dayton Audio APOLLO 18N

18" · 8 Ω · 1200 W · 96.9 dB · datasheet ↗

Thiele-Small parameters

Nominal size	18"
Impedance	8 Ω
Fs	32 Hz
Qts	0.338
Qes	0.35
Qms	10.02
Vas	253.6 L
Sd	1200 cm²
Xmax	9.1 mm
Re	6.1 Ω
Bl	26.3 T·m
Mms	196.9 g
Pe	1200 W
Sensitivity	96.9 dB

Alignment hint

EBP	91 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 75.1 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 DEFINIMAX 4018 LF	32 =	0.348 +0.01	237.9 -15.7	8.6 -0.5	96.4 -0.5	close	Xmax 8.6 mm < 9.1 mm: lower excursion-limited SPL	+
Fane COLOSSUS 18-1000	32 =	0.319 -0.02	236 -17.6	8.9 -0.2	97 +0.1	close	Xmax 8.9 mm < 9.1 mm: lower excursion-limited SPL	+
Ciare NDH18_4S	31 -1	0.319 -0.02	239 -14.6	9.4 +0.3	96.5 -0.4	close		+
Peavey LO MAX 18	33.5 +1.5	0.318 -0.02	249.7 -3.9	9.5 +0.4	97.7 +0.8	close		+
BMS 18S430vv2	31 -1	0.34 =	262 +8.4	8 -1.1	96 -0.9	close	Xmax 8 mm < 9.1 mm: lower excursion-limited SPL	+
Beyma 18P1000	32 =	0.362 +0.02	245 -8.6	8 -1.1	96.5 -0.4	close	Xmax 8 mm < 9.1 mm: lower excursion-limited SPL	+
Sica 18 S 4 CP	33 +1	0.35 +0.01	225 -28.6	11 +1.9	97.1 +0.2	close		+
Fane 18XBN	33 +1	0.337 =	236 -17.6	7.5 -1.6	96.8 -0.1	close	Xmax 7.5 mm < 9.1 mm: lower excursion-limited SPL	+
Fane COLOSSUS 18XBN	33 +1	0.337 =	236 -17.6	7.5 -1.6	96.8 -0.1	close	Xmax 7.5 mm < 9.1 mm: lower excursion-limited SPL	+
18 Sound 18LW2400	33 +1	0.32 -0.02	235 -18.6	9.5 +0.4	98 +1.1	close	4 Ω vs 8 Ω: amp load changes	+

Compare the closest 3 against the APOLLO 18N →

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.