S300 Dual Mono Integrated Amplifier GB Owner's Manual F D E I P S Manuel d'Installation Bedienungsanleitung Manual del Usuario Manuale delle Istruzioni Manual do Proprietário Bruksanvisning IMPORTANT SAFETY INSTRUCTIONS CAUTION ATTENTION: RISK OF ELECTRIC SHOCK DO NOT OPEN RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. Warning: To reduce the risk of fire or electric shock, do not expose this unit to rain or moisture. The lightning flash with an arrowhead symbol within an equilateral triangle, is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure 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 product. Do not place this unit on an unstable cart, stand or tripod, bracket or table. The unit may fall, causing serious injury to a child or adult and serious damage to the unit. Use only with a cart, stand, tripod, bracket or table recommended by the manufacturer or sold with the unit. Any mounting of the device on a wall or ceiling should follow the manufacturer's instructions and should use a mounting accessory recommended by the manufacturer. An appliance and cart combination should be moved with care. Quick stops, excessive force and uneven surfaces may cause the appliance and cart combination to overturn. Read and follow all the safety and operating instructions before connecting or using this unit. Retain this notice and the owner's manual for future reference. All warnings on the unit and in its operating instructions should be adhered to. Do not use this unit near water; for example, near a bath tub, washbowl, kitchen sink, laundry tub, in a wet basement or near a swimming pool. The unit should be installed so that its location or position does not interfere with its proper ventilation. For example, it should not be situated on a bed, sofa, rug or similar surface that may block the ventilation openings; or placed in a built-in installation, such as a bookcase or cabinet, that may impede the flow of air through its ventilation openings. The unit should be situated from heat sources such as radiators, heat registers, stoves or other devices (including amplifiers) that produce heat. The unit should be connected to a power supply outlet only of the voltage and frequency marked on its rear panel. The power supply cord should be routed so that it is not likely to be walked on or pinched, especially near the plug, convenience receptacles, or where the cord exits from the unit. Unplug the unit from the wall outlet before cleaning. Never use benzine, thinner or other solvents for cleaning. Use only a soft damp cloth. The power supply cord of the unit should be unplugged from the wall outlet when it is to be unused for a long period of time. Care should be taken so that objects do not fall, and liquids are not spilled into the enclosure through any openings. This unit should be serviced by qualified service personnel when: A. The power cord or the plug has been damaged; or B. Objects have fallen, or liquid has been spilled into the unit; or C. The unit has been exposed to rain or liquids of any kind; or D. The unit does not appear to operate normally or exhibits a marked change in performance; or E. The device has been dropped or the enclosure damaged. POUR ÉVITER LES CHOC ELECTRIQUES, INTRODUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER JUSQU'AU FOND. TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT FULLY INSERT. If an indoor antenna is used (either built into the set or installed separately), never allow any part of the antenna to touch the metal parts of other electrical appliances such as a lamp, TV set etc. ATTENTION CAUTION CAUTION POWER LINES Any outdoor antenna must be located away from all power lines. OUTDOOR ANTENNA GROUNDING If an outside antenna is connected to your tuner or tunerpreamplifier, be sure the antenna system is grounded so as to provide some protection against voltage surges and built-up static charges. Article 810 of the National Electrical Code, ANSI/NFPA No. 70-1984, provides information with respect to proper grounding of the mast and supporting structure, grounding of the lead-in wire to an antenna discharge unit, size of grounding conductors, location of antenna discharge unit, connection to grounding electrodes and requirements for the grounding electrode. a. Use No. 10 AWG (5.3mm2) copper, No. 8 AWG (8.4mm2) aluminium, No. 17 AWG (1.0mm2) copper-clad steel or bronze wire, or larger, as a ground wire. b. Secure antenna lead-in and ground wires to house with stand-off insulators spaced from 4-6 feet (1.22 - 1.83 m) apart. c. Mount antenna discharge unit as close as possible to where leadin enters house. d. Use jumper wire not smaller than No.6 AWG (13.3mm2) copper, or the equivalent, when a separate antenna-grounding electrode is used. see NEC Section 810-21 (j). EXAMPLE OF ANTENNA GROUNDING AS PER NATIONAL ELECTRICAL CODE INSTRUCTIONS CONTAINED IN ARTICLE 810 - RADIO AND TELEVISION EQUIPMENT. NOTE TO CATV SYSTEM INSTALLER: This reminder is provided to call the CATV system installer's attention to Article 820-40 of the National Electrical Code that provides guidelines for proper grounding and, in particular, specifies that the ground cable ground shall be connected to the grounding system of the building, as close to the point of cable entry as practical. DO NOT ATTEMPT SERVICING OF THIS UNIT YOURSELF. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL Upon completion of any servicing or repairs, request the service shop's assurance that only Factory Authorized Replacement Parts with the same characteristics as the original parts have been used, and that the routine safety checks have been performed to guarantee that the equipment is in safe operating condition. REPLACEMENT WITH UNAUTHORIZED PARTS MAY RESULT IN FIRE, ELECTRIC SHOCK OR OTHER HAZARDS. 2 REAR PANEL CONNECTIONS ©1998 NAD S300 ©1998 NAD S300 FRONT PANEL CONTROLS 3 REMOTE CONTROL 4 5 NAD S300 Dual Mono Integrated Amplifier QUICK START 1. Connect the speakers to the rear Speaker sockets and sources to the relevant rear input sockets. 2. Plug in the AC Mains cable. 3. Press the POWER button to turn the S300 on. 4. Press the required input selector. REAR PANEL CONNECTIONS 1. IEC AC MAINS (POWER) INPUT The S300 comes supplied with a separate AC Mains cable. Before connecting the cable to a live wall socket ensure that it is firmly connected to the NAD S300's AC Mains input socket first. Always disconnect the AC Mains cable plug from the live wall socket first before disconnecting the cable from the S300 Mains input socket. VOLTAGE CONVERSION A notice printed on the rear indicates the AC power-line voltage that the preamplifier requires. However, every model S300 amplifier has a "universal" power supply that can be modified easily for operation in other countries. If you wish to transport your S300 to a nation that employs a different power-line voltage, an authorised NAD dealer or service agency can convert it for such use. A NOTE ON INSTALLATION This unit may be installed on any level surface that is strong enough to support its weight. Avoid placing the unit in direct sunlight or near sources of heat and damp. Since its power transformers generate a significant magnetic hum field, a turntable (especially one with a moving-coil pick-up cartridge) or a TV should not be located adjacent to the amplifier or directly above it. The heat-sink fins make it awkward to lift the S300 by grasping the left and right sides. You may find it more practical to place your hands under the front and rear panels. Much of the amplifier's weight is near the front panel. CAUTION: The amplifier's weight must always rest on its bottom feet. Never put the amplifier down on its rear panel, with its front panel facing up. Doing so risks damage to the input/output connectors. The amplifier generates some heat, even when idling, requiring internal and external ventilation. Allow adequate ventilation. Do not place it in an enclosed position such a bookcase or cabinet that may impede the air-flow through the ventilation slots. Do not permit the ventilation slots on the top cover to be obstructed by papers or articles of clothing. If you want to locate the amplifier on a carpeted floor, place a board under the amplifier in order to prevent it from sinking into the carpet, blocking the air inlets on its bottom. CAUTION: To prevent a fire or shock hazard, do not permit liquid or moisture to enter the amplifier. If liquid is accidentally spilled on it, immediately shut off the power and unplug the AC Mains cable. Have the unit inspected by a qualified service technician before attempting to use it again. Switch the unit off before making any connections. The RCA connectors on your S300 are colour coded for convenience. Red and white are Right and Left audio respectively, and yellow for NAD-Link. Always use high quality leads and connectors for optimum performance and reliability. Ensure that leads and connectors are not damaged in any way and all connectors are firmly pushed home. For best performance, use quality speaker leads of 16 gauge or 2 sq.mm. thickness or more. If the unit is not going to be used for some time, disconnect the plug from the AC socket. Do not open the amplifier or attempt to modify or repair it yourself. Refer all servicing to a qualified technician. Do not remove the cover, there are no user-serviceable parts inside. Use a dry soft cloth to clean the unit. If necessary, lightly dampened the cloth with soapy water. Do not use solutions containing benzol or other volatile agents. 2. BALANCED CD INPUT Input for a CD or other line-level signal source that uses balanced XLR output connectors, like NAD S500. In case you do not wish to use a CD player featuring balanced outputs, use the AUX input for RCA connectors instead. The wiring standard used for the balanced connectors is: Pin 1:Chassis Earth (Ground) Pin 2:Hot (Live) Pin 3:Signal Ground (Return) THE BENEFITS OF BALANCED CONNECTIONS With a conventional (unbalanced) connection, audio signal current flows from the CD player to the amplifier via the cable's centre conductor. To complete the circuit, audio signal current flows back to the CD player ground via the cable's outer conductor. The outer conductor also serves as the cable's shield. When two audio components are connected together, power-supply noise and "leakage" hum may also flow on the cable shields, combining with the return audio current. The resulting distortion and noise may depend on the orientation of AC power plugs in their sockets. Designers of some audiophile cables combat this contamination by leaving the shield unconnected at one end. Since the shield is grounded at only one end, the performance of such a cable may depend on the direction of its connection, i.e. whether the shield is grounded at the CD player or at the amplifier. A three-wire balanced connection avoids all of these uncertainties. The signal "hot" and return currents are both carried on inner conductors. The separate cable shield, connected to the amplifier chassis at both ends, protects the audio signal from all forms of interference and power-supply noise. GB 3. VIDEO INPUT Input for the audio signal from a stereo VCR (or stereo TV/Satellite/Cable receiver) or other line-level audio source. Using twin RCA-to-RCA leads, connect to the left and right `Audio Outputs' of the unit to these inputs. NOTE: These are audio inputs only. 6 4. AUX INPUT Input for additional line level input signals or a CD player with no balanced output. Use a twin RCA-to-RCA lead to connect the auxiliary unit's left and right `Audio Outputs' to these inputs. 9. GROUND CONNECTOR The S300 is provided with a GROUND terminal on the rear panel. This terminal is connected directly to the chassis of the S300. In the event of radio hum or radio interference, this terminal can be connected to a `true earth' such as a copper plated rod driven several feet into the ground. 5. TUNER INPUT Input for a Tuner or other line-level signal source. Use a twin RCA-toRCA lead to connect the Tuner left and right `Audio Outputs' to these inputs. FRONT PANEL CONTROLS 1. POWER 6. TAPE, TAPE RECORD Connections for analogue recording and playback to an audio tape recorder of any type. Using twin RCA-to-RCA leads, connect the left and right `Audio Outputs' of the tape machine to the TAPE connectors for playback and tape monitoring. Connect the left and right `Audio Inputs' of the tape machine to the TAPE REC connectors for ...