Benett 18.300

18" · 8 Ω · 250 W · 101.3 dB · datasheet ↗

Thiele-Small parameters

Nominal size	18"
Impedance	8 Ω
Fs	22.8 Hz
Qts	0.133
Qes	0.137
Qms	4.365
Vas	809.8 L
Sd	1164 cm²
Xmax	5 mm
Re	6.6 Ω
Bl	28.1 T·m
Mms	113.9 g
Pe	250 W
Sensitivity	101.3 dB

Alignment hint

EBP	166 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 29.7 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
Benett 18.300 T/S	22.8 =	0.133 =	809.8 =	5 =	101.3 =	close		+
Fertin Acoustics 46EX 12.5V	22.2 -0.6	0.117 -0.02	667.7 -142.1	3 -2	101.8 +0.5	usable	100 W vs 250 W: lower power handling · Xmax 3 mm < 5 mm: lower excursion-limited SPL	+
Fertin Acoustics 46EX 10.0V	22.2 -0.6	0.155 +0.02	667.7 -142.1	3 -2	100.6 -0.7	usable	100 W vs 250 W: lower power handling · Xmax 3 mm < 5 mm: lower excursion-limited SPL	+
Fertin Acoustics 46EX 15.0V	22.2 -0.6	0.108 -0.03	667.7 -142.1	3 -2	102.2 +0.9	usable	100 W vs 250 W: lower power handling · Xmax 3 mm < 5 mm: lower excursion-limited SPL	+
Fertin Acoustics 46EX 12.5V v2	23 +0.2	0.151 +0.02	500 -309.8	3 -2	99.8 -1.5	usable	100 W vs 250 W: lower power handling · Xmax 3 mm < 5 mm: lower excursion-limited SPL	+
RCF LP 18/551	21.7 -1.1	0.222 +0.09	760 -49.8	10 +5	98.8 -2.5	usable		+
Altec 3184	24 +1.2	0.219 +0.09	690.9 -118.9	6.4 +1.4	98.5 -2.8	usable		+
Great Plains Audio 3184 GPA	24 +1.2	0.219 +0.09	690.9 -118.9	6.4 +1.4	98.5 -2.8	usable		+
McCauley B1860	23.9 +1.1	0.244 +0.11	723.6 -86.2	5.5 +0.5	99.1 -2.2	usable		+
Beyma 18GT200 v1	24.6 +1.8	0.213 +0.08	595 -214.8	5.8 +0.8	99.3 -2	usable		+

Compare the closest 3 against the 18.300 →

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.