B&K AV1260 manuale d’uso

P/N12931 0403 B&K Co mponents, Ltd. AV1260 Owner’s Manual[...]

ii B&K Components, Ltd. , 2100 Old Union Ro ad, Buffalo New Y ork 14227-2725 Phone 1 -800-543-5252 or (716) 656 -0026, Fax (716) 656 -1291 E-mail: info@bkcomp.com Web: www .bkcom p.com[...]

iii TABLE OF CONTENTS Ta ble of Conten ts ................................................................................................ ............................... iii Safe ty Pr ecau tions ................................ .............................................................................................. 1 Purp ose an d Func tion[...]

1 SAFETY PRECAUTIO NS PLEASE R E A D BEFORE INSTAL LING WARNING: to prev ent fire or shock hazard, do no t expose this unit to rain or moi sture. Care should be taken to prevent objects o r liquid from entering the enclosure. Nev er handle the pow er cord with wet hands.  The lightning flas h with ar rowhead, within an equ ilateral tr iangle, is[...]

2 PUR POSE AND FUNCTION The AV1260 is an integrati on of a stereo audio distri bution BUS with t welve com pact and efficient 60 W power amplifiers. Each p air of amplifiers have DI P s witches that allo w system configuration for us e with e ither mono/stereo and m uting control via a Mast er or Local control input. Additionally, there is s upport[...]

3 REAR PANEL VIEW Figure 1 1. AC fuse ho lder 6. Master contro l input/outp ut 2. Channel contr ol input/output 7. Bus inputs a nd outputs 3. Dip switches 8. AC input rec eptacle 4. Channel inputs and o utputs 9. Speaker outp uts 5. Channel level contro l 1. AC fu se h older - The AC Line f use. The f use is an 8 Am p / 250 Volt S low Blo w fuse. R[...]

4 6. Master cont rol input/ou tput (A or B) - The A V1260 is d esigned to pro vide ind ependent contro l for t wo groups of amplifier chan nels, Grou p A has contro l over am plifier channels 1-6, while Gro up B has contr ol over am plifier channels 7 -12. Master con trol A allows for sin gle switc hing of the am plifier audio m ute on/off feature [...]

5 CHANNEL CONTROL & MUTING Each pair of ampl ifier channels has its own 1/8” mini control input / output (pass through) jack to provide rem ote switching of the am plifier audio m ute on/off f eature. The control input circ uit is designed to work as T ip Pos. (+) and Ring Neg. ( - ). A minimum of 5VDC @ 1 mA is recomm ended, and is com patib[...]

6 INPUT CONNECTIONS Each pair of am plifier channels have t heir own ‘Loca l’ input and output RC A connector s. The inputs are des igned to accept line lev el audio fr om a pr eamplifiers unbalan ced output co nnectors. Output expansion is acc omm odated with the supp lied output co nnectors. T hese outputs are eff ectively a direc t pass thro[...]

7 LEVEL CONTROL DEFEAT The following procedures s hould onl y be perform ed b y a qualified tec hnician. Each pa ir of am plifier chann els have their own ‘Local’ level control that m ay be bypassed to allow para lleling output c hannels. The j umper modules are located inside th e unit, on t he circuit bo ard, just beh ind the le vel controls.[...]

8 HIGH CURRENT (MONO) USAGE The AV1260 h as up to twelve output c hannels tha t m ay be para lleled (m ono). This feature a llows the amplifier to increase its output power into lower impedanc e speakers . Set all ‘AMP ON’, ‘L + R’ and ‘BUS’ DIP switches to the ‘ON’ position for the desire d channels. Set the ‘ SENSE’ DIP switch[...]

9 SYSTEM INSTALLATIO N There will m ost likel y be a num ber of cables i nvolved in the installat ion of your home entert ainm e nt system . Preplanning is ess ential in or der to max imize system eff iciency. W e recommend the followin g as a m eans of helping you reach that goal.  Make a diagram of your proposed s ystem by laying out the relat[...]

10 TROUBLESHOOTI NG PROBLEM POSSIBLE C AUSE POSSIBLE SOLUTI ON No sound (‘on’ LED not illuminated) 1. Power cord not plugged in. 2. Po wer of f at AC s ource. 3. AC power i nlet fuse blo wn or fault y 1. Reconnect po wer cord. 2. Check AC switch or f use 3. Check for shorts or overloading No sound on s ome or all selec ted channels (‘on’ LE[...]

11 SPECIFICATIONS Power Rating: 8 o hm s 4 ohm s 60 watts @ 1 kHz 80 watts @ 1 kHz THD (S+N) 0.09 % @ 1 k Hz Frequenc y response 5 Hz – 45 k Hz Input sensitivit y 0.77 Volts Input impedance 33.2 k ohm s Damping fac tor 80 Current (peak to peak ) 16 Amps Slew rate 14 V /  sec Dynamic headroom 1.0 dB S/N (A - weighted) 95 dB Voltage gain 28 Line[...]

12 LIMITED WA RRANTY B & K Com ponents Ltd., r eferred to here in as B & K, warrants your B & K e quipm ent aga inst al l d efects in material and workmans hip for a perio d of five years from the date of purchase. This warranty ap plies onl y to the original purchas er and onl y to equipm ent in normal res idential use and ser vice. De[...]

13 WWW.BKCOMP .COM B&K Compon ents, Ltd. 2100 Old Union Road Buffalo, New Yo rk 14227 Phone: 716 – 656 - 0026[...]