Профессиональный коаксиальный динамик BEYMA 8CX300Fe. Инструкция на английском языке

8CX300Fe
COAXIAL TRANSDUCER
Preliminary Data Sheet
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TECHNICAL SPECIFICATIONS
Nominal diameter                    200 mm      8 in
Rated impedance (LF/HF)                    8 / 16 ?
Minimum impedance (LF/HF)                 6 / 10,2 ?
Power capacity* (LF/HF)              250 / 50 W AES
Program power (LF/HF)                  500 / 100 W
Sensitivity (LF/HF**)   96 / 104 dB     1W / 1m @ Z N
Frequency range                      80 - 20.000 Hz
Recomended crossover                 2 kHz or higher
(12 dB/oct min slope)
Voice coil diameter (LF/HF)       63,5 mm      2,5 in
44,45 mm    1,75 in
Air gap height                               7 mm
Voice coil length                           15 mm                 FREE AIR IMPEDANCE CURVE
Bl factor                                  10,2 N/A
Moving mass                                0,018 kg
THIELE-SMALL PARAMETERS***
Resonant frequency, f s                       76 Hz       [?]
D.C. Voice coil resistance, R e                5,3 ?
Mechanical Quality Factor, Q ms                  2,6
Electrical Quality Factor, Q es                 0,45
Total Quality Factor, Q ts                      0,38
Equivalent Air Volume to C ms , V as           16,3 l
[Hz]
Mechanical Compliance, C ms               239 µm / N
Mechanical Resistance, R ms               3,35 kg / s
Efficiency, ? 0                              1,55 %         FREQUENCY RESPONSE & DISTORTION
Effective Surface Area, S d                 0,022 m 2
Maximum Displacement, X max  ****              6 mm
Voice Coil Inductance, L e                  0,25 mH
MOUNTING INFORMATION
[dB]
Overall diameter               211,5 mm         8,33 in
Bolt circle diameter          198,3 mm         7,81 in
Baffle cutout diameter:
- Front mount              179,5 mm         7,07 in
Depth                           125 mm         4,92 in
Net weight                        4,6 kg         10,1 lb                           [Hz]
Shipping weight                   4,9 kg         10,8 lb            Note: On axis frequency response measured with loudspeaker standing on
infinite baffle in anechoic chamber, 1W @ 1m.
Notes:
This datasheet is done with the measurements of a laboratory prototype. Small differences may appear once the driver is transferred to the
production line and manufactured in big quantities. Please refer to the serial datasheet for the definitive information of the average production.
* 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.
*** T-S parameters are measured after an exercise period using a preconditioning power test. 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 X max  is calculated as (L vc  - H ag )/2 + (H ag /3,5), where L vc  is the voice coil length and H ag  is the air gap height.
03/15