12MW/Nd - CAD AUDIO DK
12MW/Nd
12MW/Nd
LOW FREQUENCY
TRANSDUCER
KEY FEATURES
•
•
•
•
•
Good power handling (350 w AES)
Excellent sensitivity (97 dB)
Extended frequency response (35 - 5000 Hz )
Neodymium magnets
Aluminium basket
TECHNICAL SPECIFICATIONS
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 (peak to peak)
300 mm. 12 in.
8 ohms
7 ohms
350 w AES
700 w
97 dB 2.83v @ 1m @ 2p
35 - 5000 Hz
30 / 100 l 1.06 / 3.53 ft.3
62.4 mm. 2.5 in.
2.54 kg. 5.59 lb.
16.9 N / A
0.059 kg.
19.5 mm
10 mm
30 mm
DIMENSION DRAWINGS
MOUNTING INFORMATION
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, ho (%)
Effective Surface Area, Sd (m2)
Maximum Displacement, Xmax***
Displacement Volume, Vd
Voice Coil Inductance, Le @ 1 kHz
43 Hz
6 ohms.
9.15
0.34
0.32
100 l
232 mm / N
1.74 kg / s
2.3
0.0550 m2
7.5 mm
412 cm3
1.7 mH
FREQUENCY RESPONSE AND DISTORTION
Overall diameter
Bolt circle diameter
Baffle cutout diameter:
- Front mount
- Rear mount
Depth
Volume displaced by driver
Net weight
Shipping weight
312 mm. 12.28 in.
294.5 mm. 11.59 in.
278 mm. 10.94 in.
285 mm. 11.22 in.
132.3 mm. 5.21 in.
3.5 l 0.12 ft.3
3.3 kg. 7.26 lb.
4 kg. 8.8 lb.
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.
**T-S parameters are measured after an exercise period using a preconditioning power test.
***The Xmax is calculated as (Lvc - Hag)/2 + Hag/3.5, where Lvc is the voice coil length and Hag is the air gap height.
FREE AIR IMPEDANCE CURVE
Note: on axis frequency response measured with loudspeaker standing on infinite baffle in anechoic
chamber, 1w @ 1m.
077
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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