dnh reserves the right to alter specifications without notice. rev. 26.01.2000 b-640(t) n-3770 kra g er? norway phone: ........ (47) 35 98 56 00 fax: ............ (47) 35 98 56 10 e-mail: .............. dnh@dnh.no web-site: ........ www.dnh.no iso 9001 certified dnh ww ltd . phone: ......................................................(44) 1908 275 000 england fax: ..........................................................(44) 1908 275 100 e-mail: .......................................................... dnh@dnh.co.uk dnh gmbh phone: .....................................................(49) 040 6569 30-0 germany fax: .......................................................(49) 040 6569 30-30 e-mail: .............................................................. dnh@dnh.de \\ntserver2\dataark_2000\kabinett\b-6xx\b640t.doc rec. ceiling hole: ? 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. 1w/1m pink noise 1/3 octave bands t ransformer: 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
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