background image

2

The lightning flash 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 sufficient magnitude to constitute 

a risk of electric shock to persons.

The exclamation point within an equilateral triangle is 

intended to alert the user to the presence of important 

operating and maintenance (servicing) instructions in the 

literature accompanying the appliance.

WARNING - TO REDUCE RISK 

OF FIRE OR ELECTRICAL 

SHOCK, DO NOT EXPOSE 

THIS EQUIPMENT TO RAIN OR 

MOISTURE.

NO USER-SERVICEABLE PARTS 

INSIDE. REFER SERVICING TO 

QUALIFIED PERSONNEL.

To prevent the risk of electric 

shock, do not remove cover or 

back. No user-serviceable parts 

inside.

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with a dry cloth.

7. Do not block any ventilation openings. Install 

in accordance with the manufacturer’s instruc-

tions.

8. Do not install near any heat sources such as 

radiators, heat registers, stoves, or other appa-

ratus (including amplifiers) that produce heat.

9. Do not defeat the safety purpose of the polar-

ized or grounding-type plug. A polarized plug 

has two blades with one wider than the other. 

A grounding type plug has two blades and a 

third grounding prong. The wide blade or the 

third prong are provided for your safety. If 

the provided plug does not fit into your outlet, 

consult an electrician for replacement of the 

obsolete outlet.

10. Protect the power cord from being walked on 

or pinched particularly at plugs, convenience 

receptacles, and the point where they exit 

from the apparatus.

11. Only use attachments/accessories specified by 

the manufacturer.

12. Use only with the cart, stand, tripod, bracket, 

or table specified by the manu

-

facturer, or sold with the appa-

ratus. When a cart is used, use 

caution when moving the cart/

apparatus combination to avoid 

injury from tip-over.

13. Unplug this apparatus during lightning storms 

or when unused for long periods of time.

14. Refer all servicing to qualified service person

-

nel. Servicing is required when the apparatus 

has been damaged in any way, such as power-

supply cord or plug is damaged, liquid has 

been spilled or objects have fallen into the 

apparatus, the apparatus has been exposed to 

rain or moisture, does not operate normally, or 

has been dropped.

15. Do not expose this equipment to dripping or 

splashing and ensure that no objects filled 

with liquids, such as vases, are placed on the 

equipment.

16. To completely disconnect this equipment from 

the a.c. mains, disconnect the power supply 

cord plug from the a.c. receptacle.

17. The mains plug of the power supply cord shall 

remain readily operable.

18. Do not expose batteries to excessive heat such 

as sunshine, fire or the like.

19. Connect mains power supply cord only to a 

mains socket outlet with a protective earthing 

connection.

IMPORTANT SAFETY 

INSTRUCTIONS!

PLEASE READ THEM BEFORE 

OPERATING THIS EQUIPMENT.

Содержание MC152

Страница 1: ...McIntosh Laboratory Inc 2 Chambers Street Binghamton New York 13903 2699 Phone 607 723 3512 www mcintoshlabs com MC152 Power Amplifier Owner s Manual...

Страница 2: ...d for your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet 10 Protect the power cord from being walked on or pinched particularl...

Страница 3: ...ou or your Dealer wish additional help concerning a suspected problem you can receive technical assistance for all McIntosh products at McIntosh Laboratory Inc 2 Chambers Street Binghamton New York 13...

Страница 4: ...for your valuable loudspeakers Balanced and Unbalanced Inputs Balanced connections guard against induced noise and allow long cable runs without compromising sound quality Power Guard The patented McI...

Страница 5: ...2 Dimensions 17 1 2 44 5cm 13 1 4 33 7cm 17 1 8 43 5cm 3 16 0 5cm 13 16 2 1cm 12 5 8 32 1cm 17 3 16 43 7cm 3 7 6cm Front View of the MC152 Rear View of the MC152 Side View of the MC152 6 15 2cm 5 3 8...

Страница 6: ...ture A custom cabinet installation should provide the fol lowing minimum spacing dimensions for cool opera tion Allow at least 6 inches 15 24cm above the top 2 inches 5 08cm below the bottom 3 inches...

Страница 7: ...T for audio cables from a Preamplifier or A V Control Center audio output Rear Panel Connections and Switch Fuse holder refer to information on the rear panel of your MC152 to determine the correct fu...

Страница 8: ...or Loudspeakers with an impedance of 2 ohms 4 ohms or 8 ohms Connect a single Loudspeaker only to the Right and Left Output Terminals When connecting Loudspeakers to the MC152 it is very important to...

Страница 9: ...ker s impedance is in between the available connections use the nearest lower imped ance connection Refer to General Information Note 3 on page 3 for additional information WARNING Loudspeaker termina...

Страница 10: ...witch in the UNBALanced Position 4 Connect XLR cables from the Balanced Output 2 L R of an Audio Preamplifier or A V Control Center to the MC152 Balanced INput Right and Left on Amplifier Two Place th...

Страница 11: ...s 4 ohms or 8 ohms connection to match the impedance of the Loud speaker being careful to observe the correct polarities Note The illustration on separate sheet Mc1B is connections for 8 ohms Loudspea...

Страница 12: ...ush button switches Meter Illumination On and Off Meter indicates the Right Channel Output of the amplifier LED indicates when the LEFT Channel Amplifier POWER GUARD circuit activates Meter indicates...

Страница 13: ...ivity There may be times when it would be desirable to bypass the Power Save Feature which by default is ac tive This can be implemented by placing the AUTO OFF Switch located on the MC152 Rear Panel...

Страница 14: ...nt amplification must be as linear as possible prior to the use of nega tive feedback Refer to figure 14 McIntosh engineers know how to properly design negative feedback circuits so they contribute to...

Страница 15: ...design of the MC152 contributes to low operating temperatures More than 800 square inches of heat sink area keep the MC152 operating safely with convection cooling No fans are needed Autoformers All...

Страница 16: ...her increase in distortion The Power Guard circuit acts so fast that there are absolutely no audible side effects and the sonic purity of the music reproduction is perfectly preserved The MC152 Power...

Страница 17: ...l Audio demands Refer to figure 26 The power amplifier draws high current from the AC power line Therefore it is important that they plug directly into the wall outlet Also most owners desire one powe...

Страница 18: ...0 000Hz Wide Band Damping Factor Greater than 40 Input Impedance 22 000 ohms Balanced 22 000 ohms Unbalanced Voltage Gain 23dB 2 Ohms 26dB 4 Ohms 29dB 8 Ohms Power Guard Less than 2 Total Harmonic Dis...

Страница 19: ...rton or any of the interior part s are needed please call or write Customer Service Depart ment of McIntosh Laboratory Refer to page 3 Please see the Part List for the correct part numbers Quantity Pa...

Страница 20: ...cts 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 mcin...

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