Профессиональный динамик ВЧ BEYMA WL4Fe. Инструкция на английском языке

WL-4/Fe
LINE ARRAY DRIVER
www.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 AES   power above 1,2 kHz
?  140 W   program power above 1,2 kHz
?  104 dB, 1W @ 1 m sensitivity coupled to 90? x 5? horn
?  Excellent for line array applications (weight 1,8 kg)
?  Ferrite magnet
TECHNICAL SPECIFICATIONS
Throat diameter                20,5 mm         0,8 in             DIMENSION DRAWINGS
Rated impedance                               8 ?
Minimum impedance                4,71 ? @ 3,4 kHz
D.C. resistance                             4,3 ?
Power capacity*             70 W AES  above 1,2 kHz
Program power                 140 W above 1,2 kHz
Sensitivity**                   104 dB   1W @ 1m
coupled to a 90? x 5? horn
Frequency range                       0,7 - 20 kHz
Recommended crossover          1,2 kHz or higher (12
dB/oct min.)
Voice coil diameter            44,4 mm       1,75 in
Magnetic assembly weight       1,28 kg         2,82 lb
Bl factor                                 6,6 N/A
FREE AIR IMPEDANCE CURVE
MOUNTING INFORMATION
Overall diameter                100 mm       3,94 in
Depth                           200 mm       7,87 in
Mounting                  Four 6 mm diameter holes
Net weight (1 unit)             1,81 kg       4,00 lb         [?]
Shipping weight (2 units)       3,78 kg       8,34 lb
[Hz]
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 2,83 V input, averaged in the
range 2 - 7 kHz.
*** All angle measurements are from the axis, 45? means ± 45?.

WL-4/Fe
LINE ARRAY DRIVER
www.beyma.com
FREQUENCY RESPONSE AND DISTORTION
[dB]
[Hz]
Note: On axis frequency response measured with two waveguides
coupled to TD-WL4 horn in anechoic chamber, 1W @ 1m
HORIZONTAL DISPERSION***                                                VERTICAL DISPERSION***
[dB]                                                         [dB]
[Hz]                                                           [Hz]
Note: dispersion measured with two waveguides coupled to TD-WL4   Note: dispersion measured with two waveguides coupled to TD-WL4
horn in anechoic chamber, 1W @ 1m.                           horn in anechoic chamber, 1W @ 1m.
Poligono 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 ?
03/12