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B-640 Datasheet, PDF (1/1 Pages) List of Unclassifed Manufacturers – Installation, Operation and Maintenance Procedures
ISO 9001 CERTIFIED
N-3770 Kragerø
NORWAY
Phone: ........ (47) 35 98 56 00
Fax: ............ (47) 35 98 56 10
E-mail: .............. dnh@dnh.no
Web-site: ........www.dnh.no
B-640(T)
DNH WW Ltd. Phone: ......................................................(44) 1908 275 000
England
Fax: ..........................................................(44) 1908 275 100
E-mail: .......................................................... dnh@dnh.co.uk
DNH GmbH
Germany
Phone: .....................................................(49) 040 6569 30-0
Fax: .......................................................(49) 040 6569 30-30
E-mail: .............................................................. dnh@dnh.de
Transformer:
Combined
50 / 100 Volt line
5(White) : 6(Green) 50V
5(White) : 8(Red) 100V
Secondary nominal
tappings:
1:4
6,0W
1:3
3,0W
2:4
2,0W
1:2
1,5W
3 : 4 0,9 W
2 : 3 0,5 W
1W/1m Pink Noise 1/3 octave bands
Rec. ceiling hole: ø 215 mm
Material / Colour................................Aluminium / RAL9010
Mounting ..................................................... 4 metal strips
Termination .................................................Spring clamps
Weight ................................................................... 1,2 kg
IP-rating ..........................................................................
Max. / min. amb. temp ...................................90°C / -20°C
Standard version ............................. 50 / 100 V transformer
Rated / max. power ......................................... 6 W / 20 W
SPL 1W/1m..............................................................90 dB
SPL rated power.......................................................97 dB
Effective freq. range .................................... 60 – 20000 Hz
Dispersion (-6dB) 1kHz / 4kHz ............................ 140° / 50°
Directivity factor, Q...........................................................
Installation, Operation and Maintenance Procedures
When mounting the loudspeaker please ensure that it is re-assembled in the same manner in which it was
received.
Install outer ring into the hole by bending down 4 metal strips. Use nail / screw to prevent the ring from
turning. Connect cable to terminal. Screw the loudspeaker grill clockwise into fixed position.
For optimum performance, always use the correct voltage / power and operate within the frequency limits as
stated.
Take care when loudspeaker is energized (100 V).
This loudspeaker is supplied with a 2 year warranty against defective workmanship.
Most of our products are available in different colours, impedances and power ratings.
DNH reserves the right to alter specifications without notice.
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Rev. 26.01.2000