12LW30/N - LSV
12LW30/N
12LW30/N
Nd LW30 S e r i e s
KEY FEATURES
•
•
•
•
•
•
•
•
Ultra light loudspeaker (3 kg. 6.61 lb.)
3” (77 mm.) edgewound copper ribbon voice coil
High sensitivity: 96 dB
High performance neodymium magnet system
Half the weight than a conventional ferrite model
Large Xmax: 5 mm.
Extra vented magnetic structure
Designed for extremely compact woofer applications
GENERAL DESCRIPTION
This 12” bass loudspeaker has been designed to achieve a very light loudspeaker with superior technical specifications. Thus,
the magnetic system incorporates a high energy neodymium magnet, reducing the total mass of the unit to less than 50% of a
conventional ferrite model. Moreover, the heat dissipation has been improved with the use of extra-cooling. The 12LW30/N
incorporates a 3” voice coil made with high quality materials: edgewound copper ribbon wire with high temperature bonding
strength and fiber glass former. The 12LW30/N is highly recommended for those woofer applications that require a light and
small loudspeaker with excellent technical specifications.
FREQUENCY RESPONSE AND DISTORTION CURVES
FREE AIR IMPEDANCE CURVE
Note: on axis frequency response measured with loudspeaker standing
on infinite baffle in anechoic chamber, 1w @ 1m.
PREDICTED LOW FREQUENCY RESPONSE
POWER COMPRESSION LOSSES
Note: Bass-reflex cabinet, Vb=50 l, fb=40 Hz
Note: These losses are calculated from a five minutes AES power test
applying band limited pink noise (25-1200 Hz). The loudspeaker is free-air
standing.
PRELIMINARY DATA SHEET... PRELIMINARY DATA SHEET... PRELIMINARY DATA SHEET...
12LW30/N
12LW30/N
Nd LW30 S e r i e s
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)
DIMENSION DRAWINGS
300 mm. 12 in.
8 ohms.
7.1 ohms.
350 w AES
700 w
96 dB 2.83v @ 1m @ 2π
35 - 5000 Hz
20 / 70 l 0.7 / 2.5 ft.3
77 mm. 3 in.
2.3 kg. 5.1 lb.
17.9 N / A
0.066 kg.
17 mm.
8 mm.
25 mm
MATERIALS
MOUNTING INFORMATION
•
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.
277.5 mm.
280 mm.
130 mm.
4l
3 kg.
3.7 kg.
10.93 in.
11.02 in.
5.12 in.
0.11 ft.3
6.61 lb.
8.16 lb.
•
•
•
•
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, ηo (%)
Effective Surface Area, Sd (m2)
Maximum Displacement, Xmax
Displacement Volume, Vd
Voice Coil Inductance, Le @ 1 kHz
•
•
38 Hz
6.1 ohms.
6.6
0.3
0.29
109 l
267 µm / N
2.4 kg / s
2
0.0540 m2
5 mm.
268 cm3
1.4 mH
Voice coil: edgewound copper wire with high
temperature bonding strength. Polyimide fiber glass
former able to withstand high temperatures.
Cone: high stiffness paper cone.
Surround: treated cloth to assure good retaining of
elasticity in despite of continuing use.
Spider: cotton spider.
Metal parts: anti-corrosion coated to resist
aggressive environmental conditions.
Basket: specially designed die cast aluminium basket to avoid disturbing resonances.
Magnet: high energy neodymium magnet.
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 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).
acústica beyma,s.a.
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: [email protected] ·
PRELIMINARY DATA SHEET... PRELIMINARY DATA SHEET... PRELIMINARY DATA SHEET...
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement