McIntoshメーカーMC452の使用説明書/サービス説明書
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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 tor and Cable Infor mat ion ” on page 4 . 1 . F or Remote P ower Control, connect a p ow er cont rol cabl e f rom the Audio Prea mplif ier or A / V Con- t rol Center P ow er Cont rol Out put 1 to the MC4 5 2 PO W ER CONTR OL I N.
9 If the L oudspe aker’ s i mped a nce is i n-bet ween the availab le con nect ions, use t he neare st lo wer impe d ance con nec tion. Re fer to “Gener al I n forma- tion” N ote 4 on page 3 f or add itional in format ion. 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 .
10 Cau t ion: Do not c onnec t t he AC Power Cord t o the MC4 52 Rear Pane l unt i l aft er t he Loud sp ea ke r Connec t io ns ar e mad e and t he pro te ct ive T e rm i - nal Co nnec t ion s Cover s ar e ins t al led . Failur e to obs er ve t hi s coul d re sul t in El ec t ric S hock .
11 mi nal cap u nti l the cable is f ir mly clamped into t he ter mi nals so t he lugs or wi re ca n not s lip out. Re fer to f i g u re s 7 and 8. Note: The illust rat ion i n f ig u re 6 is co nne ct ion s for 8Ω ( ohm s ) Lo ud spe ak er s.
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.
デバイスMcIntosh MC452の購入後に(又は購入する前であっても)重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります:
McIntosh MC452をまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはMcIntosh MC452の技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。McIntosh MC452の取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。McIntosh MC452で得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
McIntosh MC452を既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はMcIntosh MC452の不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、McIntosh MC452に関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちMcIntosh MC452デバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。