McIntosh MA 5100 Owners 2

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The Mclntosh "will to perfection" requires that we probe constantly into the unknown to bring the performance of our electronic equipment closer to perfection than ever before. This requires a constant and relentless search for low noise, broad band conservative design with an ever lower distortion factor. This is not required of ordinary equipment of average designs. It is, for us, a costly but worthwhile scientific and engineering effort. Our continuing research benefits our cus- tomers with the almost complete lack of obsolescence and the most reliable equipment ever made. It also means the lowest long-range cost to you. Nearly all of the Mclntosh equipment ever made is still useable, or in use, though it may have been made twenty years ago. CONTENTS GENERAL DESCRIPTION TECHNICAL DESCRIPTION BLOCK DIAGRAM PERFORMANCE CHARTS SPECIFICATIONS INSTALLATION IN A HURRY TYPICAL CONNECTION CONNECTING BALANCING LISTENING FRONT PANEL CONTROLS GUARANTEE 2 3-4 5 6 7 8 9 10 11-12 12 13 14-15 16 Your purchase of a Mclntosh instrument shows that you are a careful discriminat- ing buyer. One who is interested in quality performance, quality engineering, quality manufacturing, and long trouble-free equipment life. You can protect your in- vestment by spending a few minutes read- ing this owner's manual. When you bought a Mclntosh, you bought countless hours of musical pleasure and superior performance. Enjoy it! STEREO PREAMPLIFIER- POWER AMPLIFIER MA51OO 1

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TYPICAL PERFORMANCE DATA 1000 FREQUENCY IN HERTZ 10 POWER OUTPUT IN WATTS RMS POWER OUTPUT EQUIVALENT WATTS RMS FREQUENCY IN HERTZ 10000 20000 1000 100 20 .6 .5 .4 ,3 .2 PERCENT INTERMODULATION DISTORTION .1 0 1 100 6 1 0 20 15 10 5 0 -5 -10 -15 -20 RESPONSE IN DB POWER OUTPUT WATTS RMS 60 50 40 30 20 10 0 10 100 10K 100K PERCENT HARMONIC DISTORTION .4 .3 .2 .1 100 10 .6 .5

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GUARANTEE Mclntosh Laboratory Incorporated guarantees this instrument to be capable of performance as advertised. We also guarantee the mechanical and elec- trical workmanship and components to be free of defects for a period of 90 days from date of purchase. If such defects occur, Mclntosh Laboratory or one of its authorized agencies will repair the defect at no cost to the pur- chaser. This guarantee does not extend to components damaged by improper use nor does it extend to transportation to and from the factory or service agency. THREE YEAR FACTORY SERVICE CONTRACT An application for a FREE THREE YEAR FACTORY SERVICE CONTRACT is included with this manual. The terms of the contract are: For Three Years from date of purchase 1. Mclntosh will provide all parts, materials and labor needed to return the measured performance of the instrument to the original factory specifications free of any charge. The SERVICE CONTRACT does not cover any shipping costs to and from the authorized service agency or the factory. 2. Any Mclntosh authorized service agency will repair all Mclntosh Instru- ments at normal service rates. To receive the free service under the terms of the SERVICE CONTRACT, the SERVICE CONTRACT CER- TIFICATE must accompany the instrument when taken to the service agency. 3. Always have service done by a Mclntosh authorized service agency. If the instrument is modified or damaged as a result of unauthorized repair the SERVICE CONTRACT will be cancelled. 4. The SERVICE CONTRACT is issued to you as the original purchaser. To protect you from misrepresentation this contract cannot be trans- ferred to a second owner. 5. The SERVICE CONTRACT is given to the purchasers who live in the 50 United States or Canada only. 6. For your protection Mclntosh selects its dealers carefully. The require- ments are very strict. Only one dealer in seven applicants qualifies for a Mclntosh franchise. To receive the SERVICE CONTRACT your pur- chase must be made from a Mclntosh franchised dealer. 7. Your completely filled in application for a SERVICE CONTRACT must be postmarked within 30 days of the date of purchase of the instru- ment. 8. To receive the SERVICE CONTRACT all information on the applica- tion must be filled in. The SERVICE CONTRACT will be issued when the completely filled in application is received at Mclntosh Laboratory Incorporated in Binghamton, New York. If the application is not re- ceived at Mclntosh Laboratory, only the service offered under the 90- day guarantee will apply. TAKE ADVANTAGE OF 3 YEARS OF FREE FACTORY SERVICE FILL IN THE APPLICATION NOW Your MA5100 stereo preamplifier/power amplifier will give you many years of pleasant and satisfactory performance. If you have any questions concerning operation or maintenance please contact the dealer from whom you purchased this instrument or: - CUSTOMER SERVICE Mclntosh Laboratory Inc. 2 Chambers Street Binghamton, New York 13903 Our telephone number is 607-723-3512 16