Instruction/ maintenance manual of the product MC-452 McIntosh
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McIntosh Laboratory , Inc. 2 Chambers Street Binghamton, New Y ork 13903-2699 Phone: 607-723-3512 www .mcintoshlabs.com MC452 Quad Balanced 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 Si x foot , 2 con duc tor shield ed , with t wo 1 /8 inch stere o mini phon e plugs. 2. F or a ddit ional conne ction in form ation, refer to the owner’ s ma nual( s ) for any component( s ) conne cted to the MC4 5 2. 3 . The MC4 5 2 mutes the spe aker out put fo r approxi- mately two seconds when f i r st t u r ned on.
4 Cable Information, I ntroduct ion and Perfor mance Features 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 MC4 5 2.
5 Dimensions The fo llowing d imen sions can assist i n deter mi n ing the best locat ion f or your MC4 5 2. Dimensions Front V iew of the MC452 Rear V iew of the MC452 Side V iew of the MC452 17- 1/2 " 44.45cm 8- 7/8 " 22.54cm 9- 7/16 " 23.
6 Installation Installation The MC4 5 2 can be placed upr i g ht on a table o r she lf, st a ndi ng on its fo u r feet. It also can be custom in st alled i n a pi ece of f u r n it u re or cabinet of y ou r cho ice. The fo u r feet may be remo ved f rom the bot tom o f t he MC4 5 2 when it is custom i nst alled a s outlined bel ow .
7 Cau t ion: The Loud sp ea ke r Negat i ve Connec t i ons a re ab ove cha ss i s gro und . Do not c ombi ne any co nnec t ion s toge the r, ground t he m or conn ec t wi th a not her MC45 2 .
8 How to Co nnec t Th is McIntosh M C45 2 Qu ad Bala nced Po wer Ampli- f ier is designed for Loudspe aker s with a n i mped a nce o f 2 oh ms, 4 oh ms or 8 oh ms.
9 1 0. Connect t he Louds pea ker hookup cables to the MC4 5 2 Negativ e Out put T er mi nal a nd Pos itiv e Out put T er mi nal i ndent if ied a s 2Ω ( oh ms ), 4Ω ( ohm s ) or 8Ω ( ohm s ) con nect ion to match the impe d ance of the Loudsp ea ker , b eing ca refu l to obser ve the cor re ct polar ities.
10 Th is McIntosh M C45 2 Qu ad Bala nced Po wer Ampli- f ier is designed for Loudspe aker s with a n i mped a nce o f 2 oh ms, 4 oh ms or 8 oh ms. Con ne ct a single Loud- spea ker only to t he R ight and Left O ut put T er mi nals.
11 W A R NI NG: Louds pe ak er t er mina ls a re ha za rd - ous l ive and p re se nt a r is k of el ec t ric shoc k . For ad di t iona l in s tr uc ti on on mak ing Loud s pea ke r Conne ct i ons con - tac t you r McIntos h Dea le r or McIn- tos h T ech nic al Su pp or t .
12 F ront Panel Display s and Controls Sta ndby Po wer On I nd icator PO W ER Switch T u r ns A C Po wer Of f, Remote, A C Po wer On MET ER Swit ch selects the d isplay modes of the Po wer Out put Met.
13 How to Operate How to Operate Input M ode Switch The I nput Mode S witch, wh ich is l ocated on t he Rear Panel o f t he MC4 52, allo ws sel ect ion o f either the Bal- anced or Unbalanced I nput.
14 Mc Intosh Labor ator y , t he company who int roduced the wor ld ’ s f i r st amplif ier that could be called “H igh F ide lit y” , h as done it again. T he Mc I ntosh engi neer i ng staf f ha s cre ated a pow er a mplif ier without compro- mise, usi ng the most advanced McIntosh circuit design conce pt s.
15 opti mum , causes more output cu r - rent to f lo w , which resu lts in ext r a heat being gener ated i n the pow er out put stage. Th is i ncrea se in t empe rat u re w ill resu lt in a reduce d life expect ancy for the a mplif ier .
16 an a mplif ier cha n nel is ov e rd r iv en , the re wi ll be a dif ference bet ween t he t wo s igna l wav eform s. W hen t he dif ference ex ceed s 0.
17 ov e r 20 amps of cur rent. Re fer to f ig u re 23 (go l f ball is fo r size compa rsion ). It is enc losed in t he le genda r y Mc Intosh Po t te d Encl o - su res a nd we ighs 30lbs.
18 Specic ations Specic ations P ow er Output Mi n imu m sine wav e conti nuous av erage pow er out put per cha n nel, with both cha n nels operat i ng is : 4 50 watt s i nto 2 ohm load 4 50 wat.
19 Packing Instructions Packing Instructions In t he event i t is necessa r y to repa ck the equipment for shipment, the equ ipment must be packed exactly as sho w n belo w . It is v er y impor ta nt that t he fo u r plastic feet are at t ached to t he bott om o f the e quipment.
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-452 (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-452 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-452 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, McIntosh MC-452 you will learn all the available features of the product, as well as information on its operation. The information that you get McIntosh MC-452 will certainly help you make a decision on the purchase.
If you already are a holder of McIntosh MC-452, 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-452.
However, one of the most important roles played by the user manual is to help in solving problems with McIntosh MC-452. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device McIntosh MC-452 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
