Профессиональный коаксиальный динамик BEYMA 8BXN. Инструкция на английском языке

8BX/N
COAXIAL TRANSDUCER
KEY FEATURES
•   Considerable power handling: 100 w AES (low frequencies)
and 20 w AES (high frequencies).
•   Combination of a 8 inches bass loudspeaker and a
compression tweeter.
•   L.F. unit: 1.5 inch. (38.5 mm) aluminium voice coil.
•   H.F. unit: 1 inch (25.8 mm) copper voice coil.
•   Aluminium diaphragm tweeter.
•   The concentric mounting reduces phasing problems in the
crossover region.
•   Linear and coherent response.
DIMENSION DRAWINGS
TECHNICAL SPECIFICATIONS
Nominal diameter                           200 mm.   8 in.
Rated impedance                                  8 ohms
Minimum impedance                               5.3 ohms
Power capacity*(LF/HF)                    100 / 20 w AES
Program power(LF/HF)                           200 / 40 w
Sensitivity (LF/HF)       92 dB / 102 dB  2.83v @ 1m @ 2?
Frequency range                             60 - 20000 Hz
Recom. enclosure vol.             20 / 60 l     0.70 / 2.11 ft. 3
Voice coil diameter (LF/HF)      38.5 / 25.8 mm.  1.5 / 1 in.
Magnetic assembly weight                    2 kg.   4.4 lb.
BL factor                                    6.8 N / A   A
Moving mass                                     0.023 kg.
Voice coil length                                 14 mm
Air gap height                                    6  mm
X damage (peak to peak)                           20 mm
MOUNTING INFORMATION
THIELE-SMALL PARAMETERS**                                   Overall diameter               212 mm.        8.34 in.
Bolt circle diameter           198 mm.        7.79 in.
Resonant frequency, fs                            57 Hz      Baffle cutout diameter:
D.C. Voice coil resistance, Re                 5.3 ohms      - Front mount                  179 mm.        7.04 in.
Mechanical Quality Factor, Qms                      4.83     - Rear mount                      182 mm.       7.16 in.
Electrical Quality Factor, Qes                      0.77     Depth                          111 mm.        4.37 in.
Total Quality Factor, Qts                           0.66     Volume displaced by driver         0.5 l.     0.017 ft. 3
Equivalent Air Volume to Cms, Vas                   22 l     Net weight                       2.9 kg.       6.39 lb.
Mechanical Compliance, Cms                    326 µµ µµ µm / N  Shipping weight               3.1 kg.       6.83 lb.
Mechanical Resistance, Rms                    0.78 kg / s
Efficiency, ?? ?? ?o                             0.41 %
Notes:
Effective Surface Area, Sd                      0.022 m 2
*The power capacity is determined according to AES2-1984 (r2003) standard.
Maximum Displacement, Xmax***                      5 mm     Program power is defined as the transducer’s ability to handle normal music program material.
Displacement Volume, Vd                          110 cm 3
**T-S parameters are measured after an exercise period using a preconditioning power test.
Voice Coil Inductance, Le @ 1 kHz                0.4 mH     The measurements are carried out with a velocity-current laser transducer and will reflect the long term
parameters (once the loudspeaker has been working for a short period of time).
***The Xmax is calculated as (Lvc - Hag)/2 + Hag/3.5, where Lvc is the voice coil length and Hag is the
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air gap height.
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8BX/N
COAXIAL TRANSDUCER
FREQUENCY RESPONSE AND DISTORTION CURVES
Note: on axis frequency response measured with loudspeaker standing on infinite baffle in anechoic chamber, 1w @ 1m.
Crossover frequency set at  3,75 kHz @ 12dB/oct.
FREQUENCY RESPONSE OF LF & HF UNITS
OFF-AXIS FREQUENCY RESPONSE
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 ·    069
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