Профессиональный коаксиальный динамик BEYMA 12CXA400Nd. Инструкция на английском языке

12CXA400Nd
COAXIAL TRANSDUCER
www.beyma.com
KEY FEATURES
?  12” woofer with 4” voice coil and 2,8” voice coil
compression driver
?  Program power: 800 W LF / 180 W HF
?  Sensitivity: 98 dB LF and 105 dB HF
?  Low weight and compact common magnet system
design
?  Demodulating rings in LF and HF units
?  Composite Titanium/Mylar diaphragm
?  Waterproof LF cone
?  60? coverage horn for HF dispersion control
DIMENSION DRAWINGS
TECHNICAL SPECIFICATIONS
Nominal diameter (LF)               300 mm     12 in
12    142 0 +1
Rated impedance (LF/HF)                     8 / 16 ?
Minimum impedance (LF/HF)                     6,8 ?                                                       O 7
Power capacity* (LF/HF)               400 / 90 W AES                                                       O 298
Program power (LF/HF)                   800 / 180 W
Sensitivity (LF/HF)         98 dB   2,83v @ 1m @ 2?
Frequency range                       35 - 20.000 Hz                         -0.0 O 282,6 +0.5  O 311,7 ±0.5
Recom. HF crossover         1,5 kHz or higher (12 dB/oct
min slope)
Voice coil diameter                 101,6 mm     4 in
Magnetic assembly weight              4,2 kg   9,26 lb
BL factor                                  18,1 N/A                   1:1
Moving mass                                0,048 kg
Voice coil length                            16 mm
Air gap height                                9 mm
X damage  (peak to peak)                     28 mm
MOUNTING INFORMATION
THIELE-SMALL PARAMETERS**                                Overall diameter                311,7 mm    12,27 in
Bolt circle diameter             298 mm    11,73 in
Resonant frequency, f s                       45 Hz          Baffle cutout diameter:
D.C. Voice coil resistance, R e               6,6 ?           - Front mount                  282,6 mm    11,13 in
Mechanical Quality Factor, Q ms                6,24           - Rear mount                    286 mm    11,26 in
Electrical Quality Factor, Q es                0,28          Depth                            154 mm      6,06 in 3
Total Quality Factor, Q ts                     0,26          Volume displaced by driver          6,5 l      0,23 ft
Equivalent Air Volume to C ms , V as         102,2 l         Net weight                        7,18 kg    15,83 lb
Mechanical Compliance, C ms              260 µm / N          Shipping weight                   8,05 kg    17,75 lb
Mechanical Resistance, R ms               2,19 kg / s
Notes:
Efficiency, ? 0                              3,25 %
Effective Surface Area, S d                0,055 m 2         *  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.
Maximum Displacement, X max  ***              6 mm           ** T-S parameters are measured after an exercise period using a preconditioning power test.
Displacement Volume, V d                   210 cm 3          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).
Voice Coil Inductance, L e  @ 1 kHz           1 mH
*** 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.

12CXA400Nd
COAXIAL TRANSDUCER
www.beyma.com
FREQUENCY RESPONSE AND DISTORTION
LOW FREQUENCY RESPONSE                                    HIGH FREQUENCY RESPONSE
[dB]                                                     [dB]
[Hz]                                                     [Hz]
Note: On axis frequency response measured with loudspeaker standing on infinite baffle in anechoic chamber, 1W @ 1m
FREE AIR IMPEDANCE CURVE                                           POLAR PATTERN
500 Hz
1 kHz
2 kHz
4 kHz
8 kHz
16 kHz
[?]
[Hz]
FILTERED FREQUENCY RESPONSE
[dB]
[Hz]
Note:  Filtered  frequency  response  measured  with  loudspeaker
standing on infinite baffle in anechoic chamber, 1W @ 1m with
FD-2XA
Poligono Industrial Moncada II ? C/. Pont Sec, 1c ? 46113 MONCADA - Valencia (Spain)
03/11
? Tel.: (34) 96 130 13 75 ? Fax: (34) 96 130 15 07 ? http://www.beyma.com ? E-mail: beyma@beyma.com ?