NAD S250 owner manual Important Safety Instructions

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IMPORTANT SAFETY INSTRUCTIONS

CAUTION

 

ATTENTION:

RISK OF ELECTRIC

 

RISQUE DE CHOC ELECTRIQUE

SHOCK DO NOT OPEN

 

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.

ATTENTION

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.

CAUTION

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.

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 tuner- preamplifier, 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 lead- in 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.

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.

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.

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Contents S250 Important Safety Instructions Front Panel Controls Rear Panel ConnectionsAbout the S250 NAD S250 Five Channel Power AmplifierInstallation Precautions DesignInput Level Controls Rear Panel CONNECTIONS/CONTROLS AC Line CordInputs Speaker ConnectionsSoft Clipping Lights Front Panel Controls Power SwitchSoft Clipping PROTECTION/STAND-BY LEDPage Propos DU S250 Précautions Concernant L’INSTALLATIONNAD S250 Amplificateur de Puissance LA ConceptionConnexions DES HAUT-PARLEURS Commandes DE Niveau D’ENTRÉEEntrées Ecretage Doux Marche / Arrêt DE LA Liaison DE Commande AutomatiqueEntrée DE Commande 12 V Trigger Témoins D’ÉCRÊTAGE DouxPage DAS Design NAD S250 LeistungsverstärkerÜber DEN S250 AufstellungEingangspegeleinsteller RÜCKWANDANSCHLÜSSE/-EINSTELLER NetzkabelEingänge LautsprecheranschlüsseSOFT-CLIPPING Auto Trigger ON/OFF AUTOM. Auslöser EIN/AUSTriggereingang Frontplattenelemente NetzschalterPage Precauciones Para LA Instalación NAD S250 Amplificador de PotenciaSobre EL S250 EL DiseñoConexiones DE Altavoz EntradasControles DE Nivel DE Entrada Entrada DEL Disparador DE Interruptor PowerAutodisparador ON/OFF Soft Clipping Recorte SuavePage NAD S250 Amplificatore di Potenza Precauzioni PER InstallazioneDELL’INSTALLAZIONE Parliamo DELL’S250Connessioni Degli Altoparlanti InputComandi Livello DI Input 12V Trigger InputLuci Soft Clipping LED DI PROTEZIONE/ATTESA PROTECTION/STAND-BYPage Cuidados a TER NA Instalação Amplificador de Potência NAD S250Acerca do S250 Notas Sobre O Local DE Instalação Comandos do Nível DE EntradaEntrada do Disparador DE 12 Ligações DOS AltifalantesAuto Trigger ON/OFF LIGAR/DESLIGAR Disparador Automático Luzes Indicadoras do Circuito Soft Clipping LED DE PROTECÇÃO/STAND-BYKonstruktionen ATT Tänka PÅ VID InstallationNAD S250 Effektförstärkare ATT Tänka PÅ VID Placering AV ApparatenIngångarnas Nivåreglage Anslutningar PÅ Apparatens Baksida NätsladdIngångar HögtalarkontakterSkyddslägesindikator / Stand by Indikator Kontroller PÅ Apparatens Framsida AV/PÅ KnappSoft Clipping Indikator Page NAD Electronics International

S250 specifications

The NAD S250 is a cutting-edge amplifier designed to deliver high-fidelity sound while integrating seamlessly into modern home audio setups. Targeted towards audiophiles and tech enthusiasts alike, this amplifier embodies NAD’s commitment to performance, versatility, and user-friendly design.

One of the standout features of the S250 is its Class D amplification technology. This allows the amplifier to produce high power output while maintaining superior efficiency. The S250 can deliver an impressive 250 watts per channel into 4 ohms, providing ample power for driving demanding speakers, without the heat and energy waste associated with traditional Class A/B amplifiers.

The NAD S250 is also equipped with NAD's proprietary MDC (Modular Design Construction) technology. This feature allows users to upgrade their amplifier easily, ensuring longevity and adaptability in an ever-evolving audio landscape. As new technologies emerge, owners of the S250 can incorporate updates without needing to replace the entire unit, making it a future-proof investment.

Connectivity is another area where the S250 excels. It includes a variety of inputs, such as HDMI ARC, allowing for easy integration with televisions and other devices. Additionally, the amplifier supports Bluetooth streaming, making it easy to enjoy music from smartphones and tablets. With support for high-resolution audio formats, including MQA, users can experience studio-quality sound when streaming from compatible services.

The S250 also boasts NAD's advanced digital signal processing (DSP) capabilities, ensuring precise sound reproduction. This technology allows for features like room correction, enabling users to optimize their listening experience based on their unique environment. The built-in EQ options further enhance the amplifier's capabilities, catering to individual preferences.

In terms of design, the NAD S250 features a sleek and modern aesthetic, blending well with contemporary home decor. Its intuitive control interface, complete with a bright display and user-friendly remote, makes operation straightforward.

In summary, the NAD S250 is a versatile, powerful amplifier that leverages the latest in audio technology to deliver an exceptional listening experience. Its efficient Class D amplification, modular design, robust connectivity options, and advanced processing capabilities make it a strong contender for anyone looking to elevate their home audio system. Whether you are a casual listener or a dedicated audiophile, the S250 is designed to meet a wide range of audio needs while ensuring top-notch performance and future flexibility.