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Mark Levinson N432 N431 manual

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Table of contents for the manual

  • Page 1

    Owner’ s Manual Nº432 Nº431[...]

  • Page 2

    W ARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT REMOVE COVER. NO USER-SERVICEABLE P ARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL. The lightning flash with arrowhead symbol, within an equ[...]

  • Page 3

    Please read all instructions and precautions carefully and completely before operating your Mark Levinson power amplifier . Important Safety Instructions 1. AL W A YS disconnect your entire system from the AC mains before connecting or disconnecting any cables, or when cleaning any component. 2. This product must be terminated with a three-conducto[...]

  • Page 4

    4 “Mark Levinson” and the Mark Levinson logo are registered trademarks of Harman International Industries. U.S. patent numbers and other worldwide patents issued and pending. “Madrigal Audio Laboratories” and the Madrigal Audio Laboratories logo are registered trademarks of Harman International Industries. U.S. patent numbers and other worl[...]

  • Page 5

    5 T able of Contents Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Pr oduct Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Installation Considerations . . . . . . . . . . . . . . . . . . . . . . . . . .7 Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

  • Page 6

    6 Unpacking W arning! DO NOT attempt to lift or move the Nº432/431 without adequate assistance. Failur e to follow the procedur es included in this section may r esult in personal injuries and/or product damage. The Nº432/431 are massive power amplifiers. The Nº432 ships at 125 pounds (57kg) and the Nº431 ships at 105 pounds (48kg). Rear panel [...]

  • Page 7

    7 Installation Considerations The Nº432/431 requires special care during installation to ensure optimal performance. Pay particular attention to the precautions included in this section and to other precautions included throughout this owner’ s manual. Placement • DO review “Important Safety Instructions” and “Power Requirements” befor[...]

  • Page 8

    8 V entilation • DO select a dry , well-ventilated location out of direct sunlight. • DO allow at least a 2 to 3-inch (5 to 8cm) clearance above the Nº432/431 for proper heat dissipation through air circulation. The Nº432/431 is designed for passive, convection cooling. • DO NOT obstruct the ventilation holes on the top and bottom of the N?[...]

  • Page 9

    9 The Nº432/431 is capable of passing remarkable musical signals regardless of signal and loudspeaker demands. On either an instantaneous or continuous basis, these power amplifiers can drive exceptional power levels into most all loudspeaker loads. Depending on listening habits, loudspeaker demands, and the number of power amplifiers present in t[...]

  • Page 10

    10 Operating States The Nº432/431 has four operating states: 1. Off Power is disconnected from the ~ac mains connector . 2. Sleep Mode Power is connected to a small power supply , communication circuits, and control cir cuits. When taken out of sleep mode , the Nº432/431 requires a brief warm-up and break-in period. In sleep mode , the Nº432/431[...]

  • Page 11

    11 Special Design Featur es Thank you for purchasing the Nº432/431 Power Amplifier . While these amplifiers are straightforward in everyday use, they include several design features that are responsible for their outstanding performance. In particular , these amplifiers defy the accepted wisdom that it is impossible to design a large, powerful amp[...]

  • Page 12

    12 Extensive Pr otection The Nº432/431 is designed to shut itself down if it senses any of a number of fault conditions that could cause damage to itself or to associated loudspeakers. These fault conditions include: •t he presence of DC (direct current) at the output • demand for excessive current at the output, indicating a short- circuit ?[...]

  • Page 13

    13 power standby DUAL MONO AMPLIFIER Nº432 2 3 1 Fr ont Panel The numbers in the front panel illustration shown above correspond with the numbered items that begin below . 1. Indicator LED Indicates the operating state of the Nº432/431 and provides diagnostic information when a fault condition occurs. LED Behavior Description Fully lit Indicates [...]

  • Page 14

    14 2. Power Button Powers the Nº432/431 on and off when the power cord is connected to the ~ac mains connector and an electrical outlet. When the Nº432/431 is powered on, pressing and releasing the power button disconnects power from the ~ac mains connector and powers the Nº432/431 off. When the Nº432/431 is powered off, pressing and releasing [...]

  • Page 15

    15 control control input control 1 2 1 2 trigger out trigger in power save mode on off ~ ac mains LEFT CHANNEL RIGHT CHANNEL 4 1 2 outputs 3 inputs 1 inputs 2 outputs 3 4 5 6 8 9 7 Rear Panel The numbers in the rear panel illustration shown above correspond with the numbered items that begin below . Caution! Never make or br eak connections to the [...]

  • Page 16

    16 Caution! NEVER connect power amplifier outputs to any component other than a loudspeaker . NEVER short-cir cuit power amplifier outputs. NEVER connect power amplifier outputs to another power amplifier’ s outputs. For best performance, use high-quality loudspeaker cables. T o connect these cables, use a high-quality spade or hook lug soldered [...]

  • Page 17

    17 4. Balanced Input Provides left and right-channel audio input. One stereo XLR connector is available to accept balanced input signals from an associated pr eamplifier . For best performance, use balanced connections whenever possible. Refer to the illustration below and to the associated preamplifier documentation to ensure that Nº432/431 XLR i[...]

  • Page 18

    18 7. trigger in and out connectors Provide DC trigger control. One 1/8-inch mini-jack labeled trigger in is available to receive 12 or 5V DC signals from a connected component, and one 1/8-inch mini-jack labeled trigger out is available to pass these signals along to a connected power amplifier . The illustration below shows tip polarity requireme[...]

  • Page 19

    19 9. ~ac mains connector Provides power to the Nº432/431 through the supplied power cord when the supplied power cord is connected to the ~ac mains connector and the electrical outlet. One IEC-standard AC mains receptacle labeled ~ac mains is available. Note Befor e operating the Nº432/431, make sure the ~ac mains connector label indicates the c[...]

  • Page 20

    20 Linking Linking is available for all Mark Levinson components that offer Link or communication ports, including master , slave in , slave out, , input, and contr ol communication ports. These communication ports can be used to “link” compatible Mark Levinson components in a slave chain, allowing them to share Link controls. The Nº432/431 of[...]

  • Page 21

    21 Constructing Link Link communication cables can be constructed using an Communication Cables 8-conductor modular telephone cable with the appropriate plug crimped on each end. • Use an 8-pin RJ-45 plug when connecting to a preamplifier . RJ-45 plugs provide an 8-pin connection. • Use a 6-pin RJ-11 plug when connecting to a power amplifier . [...]

  • Page 22

    Component Requir ements & Connections 22 • Must include components that are connected in a certain order to prevent communication from terminating. Power amplifiers such as the Nº432/431 must be the last components in a slave chain. Note The slave chains in this section include pr eamplifiers and power amplifiers. However , slave chains can [...]

  • Page 23

    23 Refer to the table on the previous page and to the illustration below for additional assistance. control Nº320S Preamplifier Step A: Connect the (or slave out) communication port on the preamplifier to the input communication port on the first power amplifier . Nº432 Po wer Amplifier Step B: Connect the control communicatio port on the first p[...]

  • Page 24

    Pr eamplifier Power Amplifier Control Component 24 4. T ake the linked preamplifier out of standby . •A ll linked power amplifiers should come out of standby as well. If this does not occur , repeat steps 3 and 4. If problems persist, contact Mark Levinson Customer Service at 781- 280-0300 or www .marklevinson.com.[...]

  • Page 25

    25 Tr oubleshooting Incorrect operation is sometimes mistaken for malfunction. If problems occur , refer to this section for troubleshooting information. If problems persist, contact Mark Levinson Customer Support at 781-280-0300 or www .marklevinson.com. 1. No audio and the fr ont panel indicator LED is not lit. • Examine ~ac mains connections t[...]

  • Page 26

    26 3. No audio and the front panel indicator LED is blinking slowly . • The Nº432/431 is in standby . T o take it out of standby , press and release the standby button . The Nº432/431 will power on. 4. No audio and the front panel indicator LED is blinking rapidly , r emaining lit most of the time. • Examine ~ac mains connections to ensure th[...]

  • Page 27

    27 7. No audio and the fr ont panel indicator LED is lit at full brightness. • The Nº432/431 is powered on, but is not passing a signal. Examine signal cables to ensure a solid connection between the Nº432/431 and the associated preamplifier and loudspeakers. 8. The amplifier keeps powering off. • A fault condition may be present at the input[...]

  • Page 28

    28 Car e & Maintenance The Nº432/431 requires routine care and maintenance to ensure optimal performance. The bulleted items included in this section indicate maintenance procedures that should be performed on a regular basis. Note Failur e to perform the maintenance procedur es included in this section may void the manufactur er’ s warranty[...]

  • Page 29

    29 Specifications The correlation between published specifications and performance is unreliable. Measurements of your amplifier yield excellent results by any standards. However , only those specifications that apply to its actual operation are included here. All specifications are subject to change at any time. Nº432 rated power output: • 400 [...]

  • Page 30

    30 Declaration of Conformity Application of Council Dir ective(s): 89/336/EEC and 73/23/EEC, as amended. Standar d(s) to which Conformity is Declar ed: • EN 55103-1:1996 • EN 55103-2:1996 • EN 60065:1998 Manufactur er: Harman Specialty Group 3 Oak Park Bedfor d, MA 01730-1413 USA The equipment identified her e conforms to the Directive(s) and[...]

  • Page 31

    31 Dimensions, Nº432 17 .75" 45.09 cm 7. 65" 19.4 cm 6.97" 17 .7 cm 3.31" 8.4 cm 5.375" 13.7 cm 6.75 " 17 .15 cm 5.25" 13.3 cm 18.5 " 47 cm 19.83" 50.37 cm 17 .5 " 44.45 cm control control input control 1 2 1 2 trigger out trigger in power save mode on off ~ ac mains LEFT CHANNEL RIGHT CHANNEL outp[...]

  • Page 32

    32 Dimensions: Nº431 17 .75" 45.09 cm 5.91 " 15 cm 5.22" 13.3 cm 3.31" 8.4 cm 5.375" 13.7 cm 5.25" 13.3 cm 18.5 " 47 cm 19.83" 50.37 cm 5. 8 " 14.7 cm 17 .5 " 44.45 cm power standby DUAL MONO AMPLIFIER Nº431[...]

  • Page 33

    33 Rack-Mounting If you need or prefer to rack mount your amplifiers, contact your Mark Levinson dealer about the optional rack mount kit. This purpose-designed assembly provides the needed ventilation for the heat sink “chimneys” of the amplifiers, as well as the support required for this heavy component. To use the rack mount kit, simply bolt[...]

  • Page 34

    34 Notes[...]

  • Page 35

    35[...]

  • Page 36

    3 Oak Park, Bedford, MA, 01730-1413 USA | T elephone: 781-280-0300 | Fax: 781-280-0490 | www .marklevinson.com Customer Support: T elephone: 781-280-0300 | Sales Fax: 781-280-0495 | Service Fax: 781-280-0499 Product Shipments: 16 Pr ogress Road, Billerica, MA 01821-5730 USA Part No. 070-630670 | Rev 4 | 05/04[...]