McIntoshメーカーMC-302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 MC302 P ow er A mpl ifier 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 cond uct or shield ed , with t wo 1 /8 inch stere o mini phon e plugs. 2. F or a ddit ional connec tion in form ation, ref er t o the owner’ s ma nual( s ) for any component( s ) c on nected to the MC3 02. 3 . The MC3 02 mutes the sp ea ker output fo r approxi- mately two seconds when f i r st t u r ned on.
4 Cable Information, I ntroduction and Per for mance Features X LR Connectors Bel ow is the Pin con f ig u rat ion f or the X LR Balance d Input on the MC3 02.
5 Dimensions The fo llowing d imen sio ns ca n a ssist in dete r m in i ng the best locat ion f or your MC3 02. Dimensions Front V iew of the MC302 Rear V iew of the MC302 Side V iew of the MC302 17- 1/2 " 44.45cm 8- 7/8 " 22.54cm 9- 7/16 " 23.
6 Installation Installation The MC3 02 can be placed upr i g ht on a table o r she lf, st a ndi ng on its f ou r feet. I t also ca n be cust om in st alled in a piece of fu r nit 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 MC 302 w hen it is custom i nst al led as outli ned bel ow .
7 6.6 Con ne ct the MC302 pow er cord to a l ive A C outlet. Refer to t he rea r pa nel to det er mi ne the cor rec t vo lta ge PO W ER CONTRO L I N receives t u r n On /Off signa ls f rom a McIntosh compone nt.
8 How to Co nnec t Lou dsp ea ker C ab le D ist a nc e vs Wi re G aug e Gu id e Loudspe aker Impedance 25 f ee t (7 .6 2 me t er s) or l es s 50 f e et (1 5. 24 m et er s) or l es s 100 f ee t (30. 4 8 m et er s) or l es s 2 Oh ms 12 AW G 10AW G 8 AWG 4 Oh ms 14 AW G 12 AW G 10AW G 8 Oh ms 16A WG 14 AW G 12 AW G 3 .
9 How to Co nnec t Note: The illust rat ion o n sepa rate she et “ Mc1 A ” is conne ct ion s for 8Ω ( ohm s ) Lo ud spe ak er s. If the L oudspe aker’ s i mped a nce is in-b et ween the availab le con nect ions, use t he nearest low er impe da nce con nect ion.
10 Th is Mc I ntosh MC 302 P ower Amplif ier is desi g ned fo r Loud spea kers w ith a n impe da nce of 2 ohms, 4 ohm s or 8 ohm s. Con nect a single Loudsp ea ker only to the R ight and L eft O ut put T er m i nals.
11 Spade L ug or Wire Connect ions : 9 . Con nect the L oudspe aker hook up cables to the MC 302 N egative Output T er mi nal a nd P ositiv e Out put T er mi nal i ndenti f ied as 2 Ω ( ohm s ), 4Ω ( ohm s ) or 8Ω ( ohm s ) con nect ion to match the impe da nce of the Loudspe aker, being caref ul to obser ve the cor re ct polar ities.
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 MC 302, allow s sel ect ion o f either the Bal- anced or Unbalanced I nput.
14 Mc Intosh Labor ator y , t he company who intro duced 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 creat ed a pow er a mplif ier w ithout compro- mise, usi ng the most advanced McIntosh circuit design conce pt s.
15 considerably from what a loudspea ker requi res. In t he case of more tha n one loudspea ker con necte d in pa ra llel, the load to t he pow er amplif ier may drop to t wo ohms or even less.
16 The Auto forme r create s an ideal match bet ween the pow er a mplif ier output st age and the loudspea ker . Ref er to f i g u re 1 6. The re is abso- lutel y no per for - mance l im itat ion with a n Auto fo r mer . Its fre quency re - sponse exceeds t hat o f t he output circu it itself, and extends we ll beyond the audible range .
17 Control Center is sw itched On, a ( +5V) signa l oper - ates t he pow e r relay in the MC3 02. The MC3 02 also has t wo remote P ow er Cont rol Out Jacks. The P ow er Control si g nal f rom t hese jacks ar e dela yed by a fra c- tion o f a second so t hat the t u r n on pow er su rge o f t he next pow e r amplif ier occu rs at a later t i me.
18 Specic ations Specic ations P ow er Output Mi ni mu m sine wav e conti nuous av e rage pow er out put per cha n nel, with both cha n nels operat ing is: 300 watt s i nto 2 ohm load 300 watt s.
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 f ou r plastic feet are at t ached to t he bott om o f the equ ipment.
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 MC-302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 MC-302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 MC-302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 MC-302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 MC-302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 MC-302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 MC-302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 MC-302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 MC-302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。
