Beyma 21PW1400FE

21.5" · 8 Ω · 1400 W · 98.6 dB · datasheet ↗

Thiele-Small parameters

Nominal size	21.5"
Impedance	8 Ω
Fs	30 Hz
Qts	0.343
Qes	0.36
Qms	7.44
Vas	401.5 L
Sd	1734 cm²
Xmax	10 mm
Re	5.2 Ω
Bl	28.4 T·m
Mms	295.5 g
Pe	1400 W
Sensitivity	98.6 dB

Alignment hint

EBP	83 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 123.5 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
RCF LF 21N401	30 =	0.378 +0.03	374 -27.5	10.6 +0.6	98 -0.6	close		+
MC Kenzie FRL-21/1200-LF	30 =	0.378 +0.03	374 -27.5	9.5 -0.5	98 -0.6	close	Xmax 9.5 mm < 10 mm: lower excursion-limited SPL	+
RCF LF 21X451	28 -2	0.369 +0.03	385 -16.5	13 +3	97 -1.6	close		+
Beyma 21LEX1600/Nd	30 =	0.272 -0.07	394 -7.5	9.3 -0.7	99.3 +0.7	close	Xmax 9.3 mm < 10 mm: lower excursion-limited SPL	+
18 Sound 21NLW9000	29 -1	0.347 =	304 -97.5	10.7 +0.7	96.4 -2.2	close		+
RCF 21LNW9000	29 -1	0.347 =	304 -97.5	10.7 +0.7	96.4 -2.2	close		+
SB Audience NERO-21SW1100D	32 +2	0.339 =	312.6 -88.9	8.1 -1.9	98.6 =	close	1100 W vs 1400 W: lower power handling · Xmax 8.1 mm < 10 mm: lower excursion-limited SPL	+
RCF LF 21N451 v2017	30 =	0.259 -0.08	375 -26.5	8.6 -1.4	99.3 +0.7	usable	Xmax 8.6 mm < 10 mm: lower excursion-limited SPL	+
LaVoce SAF214.50 vp	30 =	0.401 +0.06	311 -90.5	11.6 +1.6	96.4 -2.2	usable		+
Ciare NDC 21-5	32.2 +2.2	0.344 =	270.8 -130.7	8.8 -1.2	97.2 -1.4	usable	Xmax 8.8 mm < 10 mm: lower excursion-limited SPL	+

Compare the closest 3 against the 21PW1400FE →

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.