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12XA30Nd
GENERAL DESCRIPTION
KEY FEATURES
12XA30Nd
C o a x i a l
• 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
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.
FREQUENCY RESPONSE AND DISTORTION CURVES
Note: on axis filtered frequency response measured with loudspeaker
standing on infinite baffle in anechoic chamber, 1w @ 1m.
PREDICTED LOW FREQUENCY RESPONSE
FREQUENCY RESPONSE OUT OF AXIS
FREQUENCY RESPONSE OF LF & HF UNITS
Note: bass-reflex cabinet, Vb=60 l, fb=56 Hz
Note: on axis frequency response of low and high frequency units,
1w @ 1m.
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12XA30Nd
12XA30Nd
C o a x i a l
TECHNICAL SPECIFICATIONS DIMENSION DRAWINGS
L.F. UNIT
Nominal diameter
Rated impedance
Minimum impedance
Power capacity*
Program Power
Sensitivity
Frequency range
Recom. enclosure vol.
Voice coil diameter
Magnetic assembly weight
BL factor
Moving mass
Voice coil length
Air gap height
X damage
98 dB 2.83v @ 1m @ 2p
40 / 100 l 1.49 / 3.53 ft.3
300 mm. 12 in.
8 ohms.
7.6 ohms.
350 w AES
700 w
35-4000 Hz
100 mm. 4 in.
4.2 kg. 9.24 lb.
18.2 N/A
0.047 kg.
16 mm.
9 mm.
28 mm.
MATERIALS
H.F. UNIT
Rated impedance
Minimum impedance
Power capacity
Frequency range
Sensitivity 1w @ 1m
Voice coil diameter
Flux density
BL factor
Dispersion
13.5 ohms.@ 3.5 kHz
90 w AES above 1 kHz
72.2 mm. 2.87 in.
16 ohms.
0.5 - 20 kHz
105 dB
15.3 N/A
80° conical
THIELE-SMALL PARAMETERS
Resonant frequency, fs
D.C. Voice coil resistance, Re
Mechanical Quality Factor, Qms
Electrical Quality Factor, Qes
Total Quality Factor, Qts
Equivalent Air Volume to Cms, Vas
Mechanical Compliance, Cms
Mechanical Resistance, Rms
Efficiency,
Effective Surface Area, Sd (m2)
Maximum Displacement, Xmax
Displacement Volume, Vd
Voice Coil Inductance, Le @ 1 kHz
Notes:
*The power capacity is determined according to AES2-1984 (r2003) standard.
Program power is defined as the transducer’s ability to handle normal music program material.
hh
ho (%)
hh
6.8 ohms.
430
1.36 kg / s
0.0530 m
210 cm
1.3 mH
1.6 T
35 Hz
7.98
0.22
0.21
172 l
mm
mm / N
mm
3.3
4 mm
L.F. UNIT
• Basket: Die cast aluminium
• Cone: Paper
• Surround: Plasticised cloth
• Voice coil: Edgewound aluminium ribbon
• Magnet: Neodymium
H.F. UNIT
• Dome: Titanium
• Surround: Polyester
• Voice coil: Edgewound aluminium ribbon
• Voice coil former: Kapton
MOUNTING INFORMATION
Overall diameter
Bolt circle diameter
Baffle cutout diameter:
- Front mount
- Rear mount
Depth
2
3
Volume displaced by driver
Net weight
Shipping weight
**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).
312 mm. 12.28 in.
295 mm. 11.61 in.
284 mm. 11.18 in.
284 mm. 11.18 in.
152 mm. 5.98 in.
6.5 l 0.23 ft.
6.3 kg. 13.86 lb.
7 kg. 15.4 lb.
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Polígono 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 ·
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