McIntosh MC-2125 manual

TH E MclNTOS H M C 212 5 SOLI D STAT E STERE O POWE R AMPLIFIE R Readin g Time : 3 1 Minute s Pric e $1.2 5[...]

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You r M C 212 5 Stere o Powe r Amplifie r wil l giv e yo u man y year s o f pleasan t an d satisfactor y performance . I f yo u hav e an y questions , pleas e contact : CUSTOME R SERVIC E Mclntos h Laborator y Inc . 2 Chamber s Stree t Binghamton , Ne w Yor k 1390 3 Phone : 607-723-351 2 WARNING : T O PREVEN T FIR E O R SHOC K HAZARD , D O NO T EXP[...]

INPU T STERE O O R TWI N AMPLIFIE R OPERATIO N Us e shielde d cable s t o connec t th e signa l fro m th e pre - amplifie r o r signa l sourc e t o th e powe r amplifier . T o mini - miz e th e possibilit y o f hu m th e shielde d cable s shoul d b e ru n paralle l t o eac h othe r o r loosel y twiste d together . Lo - cat e th e cable s awa y fro [...]

I f a loa d impedanc e i s use d tha t i s lowe r tha n th e outpu t impedanc e tap , the n reduce d powe r an d possibl e distortio n wil l resul t I f a loa d impedanc e i s use d tha t i s highe r tha n th e outpu t impedanc e tap , the n neithe r th e signa l no r th e amplifie r wil l b e harme d bu t th e powe r availabl e i s limited . FO R [...]

Stereophoni c Connection s MUS T B E I N STERE O POSITIO N FO R STERE O PROGRAM S LEF T SPEAKE R 6 STERE O MOD E SWITC H MON O RIGH T SPEAKE R PROGRA M SOURC E[...]

Monophoni c Connection s CONNEC T FO R MON O US E ONL Y WHE N TH E MOD E SWITC H I S I N MONOPOSITIO N STERE O MOD E SWITC H MON O PROGRA M SOURC E 7[...]

Fron t Pane l Informatio n METER S Outpu t powe r monito r meter s indicat e th e outpu t powe r o f eac h channel . Eac h mete r ha s tw o primar y scales : WATT S an d DECIBELS . Wit h th e METE R RANG E switc h i n on e o f th e decibe l (dB ) positions , peak signal reading s ar e indicate d o n th e lowe r DECIBE L scale . Th e meter s sho w p[...]

stri p o n th e rea r panel . Th e mete r i s calibrate d fo r 30 0 watt s a t th e righ t han d en d o f th e mete r scale . Whil e th e M C 212 5 canno t reac h thi s powe r leve l continuously , i t i s possibl e fo r shor t interva l peak s t o exceed , considerably , th e 12 0 wat t continuou s rating . HOL D I n th e HOL D position , th e met[...]

Rea r Pane l Informatio n LEF T an d RIGH T OUTPU T Fo r stere o operation , outpu t impedance s o f 2 , 4 , 8 an d 1 6 ohm s hav e bee n provide d o n a secure , scre w typ e bar - rie r strip . Fo r monophoni c operatio n prope r interconnectio n provide s 1 , 2 , 4 an d 8 ohm s fro m th e sam e barrie r strips . POWE R GUAR D Amplifier s ar e ca[...]

Performanc e Limit s an d Rating s PERFORMANC E GUARANTE E Performanc e Limit s ar e th e maximu m deviatio n fro m per - fectio n permitte d fo r a Mclntos h instrument . W e promis e yo u tha t th e M C 212 5 yo u bu y mus t b e capabl e o f per - formanc e a t o r exceedin g thes e limit s o r yo u ge t you r mone y back . Mclntos h i s th e onl[...]

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Technica l Descriptio n INPU T AMPLIFIE R Separat e inpu t amplifier s ar e use d fo r th e righ t an d lef t channels . Eac h inpu t amplifie r i s a tw o transisto r feed - bac k amplifie r whic h ha s unit y gain . The y ar e use d t o pro - vid e hig h inpu t impedanc e an d lo w outpu t impedanc e fo r drivin g th e powe r amplifie r sections [...]

applie d differentiall y t o a hig h gai n operationa l amplifie r wher e i t i s amplifie d abou t 10 0 times . Th e amplifie d contro l voltag e i s detecte d b y a ful l wav e bridg e rectifie r the n enter s a Schmid t trigge r whic h i s programme d t o sequenc e th e fron t pane l indicator s fro m NORMA L (green ) t o LIMI T (red ) a t a pre[...]

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MclNTOS H LABORATOR Y INC . 2 CHAMBER S ST. , BINGHAMTON , N . Y . 1390 3 607-723-351 2 Desig n subjec t t o chang e withou t notice . Printe d i n U.S.A . 038-88 5[...]