Haut-parleur Beyma 12XA30Nd
[12XA30Nd-8+16] Avis/Critiques

This 12" coaxial loudspeaker is intended for the most demanding professional applications. Its low frequency unit features a 4" (100 mm) edgewound aluminium ribbon voice coil capable of handle 350 w AES. This bass unit has been optimized in order to fit in with the most compact bass-reflex systems. The high frequency unit uses a 2.8" (72.2 mm) aluminium ribbon voice coil and a composite structure diaphragm, that is to say, a titanium dome and polyester surround combination. All these components give as a result a coherent and extended frequency response with low distortion that ranges from 25 Hz up to 20 kHz. Moreover, the use of a common neodymium magnet system for both units reduces the weight to 6.3 kg.

Key features :
12" bass loudspeaker and 2" exit compression driver combination
Excellent power handling: 350 w AES (L.F. unit) and 90 w AES (H.F. unit)
Extended and linear frequency response (25-20000 Hz)
High sensitivity: 98 dB (L.F. unit) and 105 dB (H.F. unit)
Low weight (common neodymium magnet system for both units)
Bass loudspeaker designed for compact bass-reflex cabinets

Technical Specifications :
 
L.F. Unit
Nominal Diameter 300 mm. 12 in.
Rated Impedance  8 ohms.
Minimum impedance  7.6 ohms.
Power capacity 350 w AES 
Program power  700 w
Sensitivity  98 dB 2.83v @ 1m @ 2p
Frequency Range 35-4000 Hz
Recom. enclosure vol.  40 / 100 l 1.49 / 3.53 ft.3
Voice coil diameter 100 mm. 4 in.
Magnetic assembly weight  4.2 kg. 9.24 lb.
BL factor  18.2 N/A
Moving mass  0.047 kg.
Voice coil length  16 mm. 
Air gap height  9 mm.
X damage  28 mm.
 
H.F. Unit
Rated impedance  16 ohms.
Minimum impedance  13.5 ohms.@ 3.5 kHz
Power capacity
 90 w AES above 1 kHz
Frequency Range 0.5 - 20 kHz
Sensitivity  105 dB
Voice coil diameter 72.2 mm. 2.87 in.
Flux density  1.6 T
BL Factor  15.3 N/A
Dispersion 80º conical