
www.beyma.com
Polígono Industrial Moncada II ▪ C/. Pont Sec, 1c ▪ 46113 MONCADA - Valencia (Spain)
▪ Tel.: (34) 96 130 13 75 ▪ Fax: (34) 96 130 15 07 ▪ http://www.beyma.com ▪ E-mail: beyma@beyma.com ▪
KEY FEATURES
● 1,75” (44,4 mm) edgewound aluminium ribbon voice coil
● Improved moving assembly mechanical coupling for
excellent power handling capabilities
● PM-4 polymer diaphragm
● 70 W
● 140 W program power above 1,8 kHz
● Sensitivity 102 dB (1W / 1m) coupled to a 90º x 5º horn
● Excellent for line array applications (weight 1,7 kg)
● Ferrite magnet
power above 1,8 kHz
AES
WL3Fe
LINE ARRAY DRIVER
Preliminary Data Sheet
TECHNICAL SPECIFICATIONS
Throat diameter
Rated impedance
Minimum impedance
D.C. resistance
Power capacity*
Program power
Sensitivity**
Frequency range
Recommended crossover
Voice coil diameter
Flux density
Bl factor
MOUNTING INFORMATION
Overall diameter
Depth
Mounting
Net weight (1 unit)
Shipping weight (2 units)
20,5 mm 0,8 in
8 Ω
5,1 Ω @ 3,4 kHz
4,3 Ω
70 W
above 1,8 kHz
AES
140 W above 1,8 kHz
102 dB 1W / 1m @ ZN
coupled to a 90º x 5º horn
1 - 18 kHz
1,8 kHz or higher
(12 dB/oct min.)
44,4 mm 1,75 in
1,6 T
4,8 N/A
115 mm 4,50 in
150 mm 5,91 in
Four 6 mm diameter holes
1,7 kg 3,75 lb
3,6 kg 7,94 lb
FREE AIR IMPEDANCE CURVE
[Ω]
[Hz]
FREQUENCY RESPONSE
[dB]
Notes:
* The power capaticty is determined according to AES2-1984 (r2003) standard. Program
power is defined as the transducer’s ability to handle normal music program material.
** Sensitivity was measured at 1m distance, on axis, with 1W input, averaged in the range
2 - 7 kHz.
[Hz]
Note: On axis frequency response measured in
anechoic chamber, 1W / 1m