Instruction/ maintenance manual of the product MC-75 60th Anniversary Edition McIntosh
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McIntosh Laboratory , Inc. 2 Chambers Street Binghamton, New Y ork 13903-2699 Phone: 607-723-3512 www .mcintoshlabs.com MC75 60 th Anniversary T ube Power Amplier Owner ’ s Manual.
2 The lightning ash with arrowhead, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s en - closure that may be of sufcient magnitude to constitute a risk of electric shock to persons.
3 I M P O R TA N T ! IN S T R UC TIO NS F OR REM O V AL OF F O AM IN S ER T O VER T HE V A C U UM T UB E S P RIOR T O C ONN E C T ING T HE A . C . P OWE R S UP P L Y C ORD , S T AR T ON T HE NEX T P A GE.
4 Unpacking the MC7 5 Caut io n : T o pr ev ent da mage to th e MC 7 5 T ubes during shipping, th ere is a special f oam insert surrounding the T ubes of t he P o we r Ampli f ie r . The F oam Inse r t mu st be r e m ove d from th e MC7 5 be - f ore c onnecti ng th e A C P ow - er S up ply C or d to th e po w er a m p l i f i e r.
5 Adequate ventilation extends t he t roubl e f re e life o f t he MC 7 5. Alw ays allo w ai r to f lo w th roug h the ventilation ho les on the bot tom of the amplif ier and a mean s for the war m ai r to e scape at the top. Re fer to f ig u re 9 . Allow at l ea st 1 2 i nches ( 30.
6 1 . T he f ollo wi ng Con nect i ng Cabl e is availab le f rom the Mc I ntosh Par t s Depa r t ment: Power Con tr ol Ca ble Pa r t No. 1 70 -202 Si x foot , 2 con duc tor shield ed , with t wo 1 /8 inch stere o mini phon e plugs.
7 General Infor mation, Cable Informat ion, Introduc tion and Per formanc e Fe atures X LR Connectors Bel ow is the Pin con f i g u r ation fo r t he XLR Bala nced Input, I nput /Out put Connect ors on t he MC 7 5.
8 Dimensions The fo llowing d imen sions can assist i n deter mi n ing the best locat ion f or your MC7 5 . 16 -1/2 " 41.91cm Front View of the MC75 T op V iew of the MC75 Left Side V iew of the MC75 Right Side V iew of the MC75 7 -7/8 " 20.
9 Lef t Side Connections, Right Sid e Connections and F use Holder Con ne ct t he MC7 5 power cord to a live A C outlet. Ref er t o t he rea r panel to d ete r m i ne t he cor r ect voltage PO W ER CO.
10 How to Co nnec t Amplif ie r sho uld not b e conn ecte d to an othe r L o u d s p e a k e r. 4. Prepa re the L oudspe aker Hookup C abl es t hat att a ch to the A mplif ier b y choosing one o f the methods b el ow: Bare w ire cable ends: Caref u lly remov e s uf f icient insu lation f rom the cabl e ends , ref er t o f ig u res 1 , 2 & 3 .
11 How to Co nnec t Preamp lif ier Con ne ct t o A C O utlet COM 2 Ω 4 Ω 8 Ω.
12 Lef t Side Panel Display and Switches Sta ndby Po wer On a nd Se ntr y Monitor T ub e Pr otec tion Activat ion Ind icator PO W ER Switch T u r ns A C Pow er ON, or OFF / S T B Y( S t a n d b y ) I N PUT MODE switch selects b et ween ba lanc ed or u nbala nced i nput I N PUT SENSIT I V IT Y switch select s be t ween 1 .
13 How to Operate How to Operate is at the 2 O ’ Clock sett ing. If the P rea mplif ier or A / V Control Center ha s an Elect ron ic V o lu me Displa y , adjust the V olume Display f or a n i ndication o f 70% o r 0 d B.
14 Specic ations Specic ations P ow er Output Mi n imu m sine wav e conti nuous av erage pow er out put i s: 7 5 wat ts i nto 2 ohm load 7 5 wat ts i nto 4 ohm load 7 5 wat ts i nto 8 ohm load Output Load Impedance 2, 4 or 8 oh ms Rated Po wer Ban d 20Hz to 20,000H z T otal Har monic Distor t ion 0.
15 Packing Instructions Packing Instructions Quan tity Par t Numbe r De s c r ipt ion 1 03 4 469 Shipping car ton 1 03 4 468 F oa m Pad T op 2 03 4 4 7 4 F oa m Pad Bott om 1 03 4 4 7 1 F oa m I nse r.
The continuous improvement of its products is the policy of McIntosh Laboratory Incorporated who reserve the right to improve design without notice. Printed in the U.S.A. McIntosh Laboratory , Inc. 2 Chambers Street Binghamton, NY 13903 www .mcintoshlabs.
An important point after buying a device McIntosh MC-75 60th Anniversary Edition (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought McIntosh MC-75 60th Anniversary Edition yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data McIntosh MC-75 60th Anniversary Edition - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, McIntosh MC-75 60th Anniversary Edition you will learn all the available features of the product, as well as information on its operation. The information that you get McIntosh MC-75 60th Anniversary Edition will certainly help you make a decision on the purchase.
If you already are a holder of McIntosh MC-75 60th Anniversary Edition, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime McIntosh MC-75 60th Anniversary Edition.
However, one of the most important roles played by the user manual is to help in solving problems with McIntosh MC-75 60th Anniversary Edition. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device McIntosh MC-75 60th Anniversary Edition along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
