Beyma 18PW1400/FE

18" · 8 Ω · 1400 W · 98.3 dB · datasheet ↗

Thiele-Small parameters

Nominal size	18"
Impedance	8 Ω
Fs	32 Hz
Qts	0.273
Qes	0.28
Qms	10.23
Vas	228.9 L
Sd	1255 cm²
Xmax	9.1 mm
Re	5.05 Ω
Bl	29.4 T·m
Mms	238.6 g
Pe	1400 W
Sensitivity	98.3 dB

Alignment hint

EBP	114 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 40.1 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
Beyma 18PW1400FE /S	32 =	0.27 =	228.9 =	10 +0.9	98 -0.3	close		+
PHL Audio 7321ND	33 +1	0.278 +0.01	230 +1.1	8.5 -0.6	98.3 =	close	Xmax 8.5 mm < 9.1 mm: lower excursion-limited SPL	+
RCF LF18N401	32 =	0.26 -0.01	257 +28.1	9 -0.1	98 -0.3	close	Xmax 9 mm < 9.1 mm: lower excursion-limited SPL	+
B&C 18NW100	31 -1	0.26 -0.01	252 +23.1	9 -0.1	98 -0.3	close	Xmax 9 mm < 9.1 mm: lower excursion-limited SPL	+
B&C 18 TBX 46	31 -1	0.277 =	270 +41.1	9 -0.1	98.2 -0.1	close	1000 W vs 1400 W: lower power handling · Xmax 9 mm < 9.1 mm: lower excursion-limited SPL	+
RCF LF 18N401	32 =	0.259 -0.01	257 +28.1	8.8 -0.3	98.9 +0.6	close	Xmax 8.8 mm < 9.1 mm: lower excursion-limited SPL	+
RCF LF 18X451	30 -2	0.278 +0.01	220 -8.9	10.7 +1.6	96.8 -1.5	close		+
Oberton 18FBR700	35.56 +3.56	0.271 =	231.3 +2.4	8 -1.1	98 -0.3	close	700 W vs 1400 W: lower power handling · Xmax 8 mm < 9.1 mm: lower excursion-limited SPL	+
Precision Devices PD188	37.409 +5.41	0.28 +0.01	224.419 -4.48	9.5 +0.4	98.5 +0.2	close	600 W vs 1400 W: lower power handling	+
B&C 18 NW 100	31 -1	0.254 -0.02	252 +23.1	8.7 -0.4	98.4 +0.1	close	Xmax 8.7 mm < 9.1 mm: lower excursion-limited SPL	+

Compare the closest 3 against the 18PW1400/FE →

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.