Beyma 18QLEX1600Fe

18" · 8 Ω · 1600 W · 97 dB · datasheet ↗

Thiele-Small parameters

Nominal size	18"
Impedance	8 Ω
Fs	30 Hz
Qts	0.23
Qes	0.24
Qms	6.5
Vas	195 L
Sd	1255 cm²
Xmax	13 mm
Re	5.3 Ω
Bl	36.4 T·m
Mms	323 g
Pe	1600 W
Sensitivity	97 dB

Alignment hint

EBP	125 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 23.1 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 18QLEX1600Fe	31 +1	0.25 +0.02	177.2 -17.8	13 =	96 -1	close	4 Ω vs 8 Ω: amp load changes	+
Beyma 18QLEX1600/Fe	30 =	0.231 =	195 =	8.3 -4.7	97.2 +0.2	close	Xmax 8.3 mm < 13 mm: lower excursion-limited SPL	+
Precision Devices PD.1850/2	33.1 +3.1	0.24 +0.01	203.84 +8.84	11.1 -1.9	96.7 -0.3	close	800 W vs 1600 W: lower power handling · Xmax 11.1 mm < 13 mm: lower excursion-limited SPL	+
18 Sound 18NLW4100	29 -1	0.27 +0.04	207 +12	15 +2	97 =	close	4 Ω vs 8 Ω: amp load changes	+
18 Sound 18LW2600	30 =	0.28 +0.05	186 -9	14 +1	96.5 -0.5	close	4 Ω vs 8 Ω: amp load changes	+
Precision Devices PD.185N02	35.2 +5.2	0.24 +0.01	178.28 -16.72	12 -1	96.8 -0.2	close	1100 W vs 1600 W: lower power handling · Xmax 12 mm < 13 mm: lower excursion-limited SPL	+
RCF LF18X451	30 =	0.28 +0.05	220 +25	14 +1	97 =	close		+
B&C 18DS100	32 +2	0.24 +0.01	157 -38	14 +1	98 +1	close	4 Ω vs 8 Ω: amp load changes	+
B&C 18DS115	30 =	0.2 -0.03	168 -27	16.5 +3.5	98 +1	close		+
Precision Devices PD.185C003-8	33 +3	0.24 +0.01	224 +29	11 -2	97.3 +0.3	close	1000 W vs 1600 W: lower power handling · Xmax 11 mm < 13 mm: lower excursion-limited SPL	+

Compare the closest 3 against the 18QLEX1600Fe →

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.