Dayton Audio APOLLO 18F

18" · 8 Ω · 1200 W · 96.4 dB · datasheet ↗

Thiele-Small parameters

Nominal size	18"
Impedance	8 Ω
Fs	32 Hz
Qts	0.401
Qes	0.42
Qms	8.97
Vas	287.7 L
Sd	1200 cm²
Xmax	10.6 mm
Re	6.5 Ω
Bl	23.2 T·m
Mms	173.6 g
Pe	1200 W
Sensitivity	96.4 dB

Alignment hint

EBP	76 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 136.4 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
Beyma 18LEX1200FE	32 =	0.378 -0.02	277 -10.7	11 +0.4	97.4 +1	close		+
Beyma 18G550/S-8	33 +1	0.396 -0.01	290 +2.3	9.3 -1.3	97.5 +1.1	close	900 W vs 1200 W: lower power handling · Xmax 9.3 mm < 10.6 mm: lower excursion-limited SPL	+
Beyma 18G550 v2018	33 +1	0.396 -0.01	290 +2.3	9 -1.6	97.5 +1.1	close	900 W vs 1200 W: lower power handling · Xmax 9 mm < 10.6 mm: lower excursion-limited SPL	+
Fane COLOSSUS PRIME 18XS	33 +1	0.385 -0.02	257 -30.7	12 +1.4	95.4 -1	close		+
Faital PRO 18FX800	34 +2	0.4 =	247 -40.7	13.8 +3.2	96 -0.4	close		+
Beyma 18LEX1000Nd	34 +2	0.39 -0.01	260 -27.7	11 +0.4	98 +1.6	close		+
Beyma 18G550 (prodance)	29.5 -2.5	0.382 -0.02	291 +3.3	9 -1.6	96.7 +0.3	close	900 W vs 1200 W: lower power handling · Xmax 9 mm < 10.6 mm: lower excursion-limited SPL	+
SB Audience ROSSO-18SW650	31 -1	0.418 +0.02	304.3 +16.6	9 -1.6	97.2 +0.8	close	650 W vs 1200 W: lower power handling · Xmax 9 mm < 10.6 mm: lower excursion-limited SPL	+
Beyma 18LEX1000/Nd	34 +2	0.391 -0.01	260 -27.7	9.4 -1.2	97.8 +1.4	close	Xmax 9.4 mm < 10.6 mm: lower excursion-limited SPL	+
Beyma 18LEX1000Fe	34 +2	0.38 -0.02	250 -37.7	11 +0.4	98 +1.6	close		+

Compare the closest 3 against the APOLLO 18F →

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.