NAD M25 owner manual Troubleshooting Problem Cause Solution, Specifications Amplifier Section

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ENGLISH FRANÇAIS DEUTSCH ESPAÑOL ITALIANO PORTUGUÊS SVENSKA

TROUBLESHOOTING

PROBLEM

 

CAUSE

SOLUTION

NO SOUND

Power AC lead unplugged or power not

• Check if AC lead is plugged in and power

 

 

switched on

switched on

 

 

 

 

NO SOUND ON ONE CHANNEL

Speaker not properly connected or damaged.

• Check connections and speakers

 

• Input lead disconnected or damaged

• Check leads and connections

 

 

 

 

NO SOUND ON SURROUND CHANNELS

No surround mode selected

• Select a Surround Mode

 

Mono sound source

• Test system with Stereo or Dolby Surround

 

 

 

material

 

• Speakers not properly connected

• Check speakers and connections

 

• Surround volume level too low

• Increase surround volume level

 

 

 

 

NO SOUND ON CENTER CHANNEL

Speaker not connected properly

• Check speaker and connection

 

• Center volume level set too low

• Increase center volume level

 

 

 

 

WEAK BASS/ DIFFUSE STEREO IMAGE

Speakers wired out of phase

• Check connections to all speakers in the system

 

 

 

 

SPECIFICATIONS

 

AMPLIFIER SECTION

 

CONTINUOUS AVERAGE POWER OUTPUT

>160 W (22.0 dBW)

INTO 8 OHMS OR 4 OHMS

 

(Minimum power per channel, 20 Hz - 20 kHz, all seven channels driven, with no more than rated distortion)

Rated Distortion

 

<0.03%

(THD 20 Hz - 20 kHz)

 

 

Clipping power

 

>180 W

(Maximum continuous power per channel, all seven channels driven)

IHF DYNAMIC POWER

 

 

(Maximum short term power per channel)

 

8 ohms:

 

> 220 W (23.4 dBW)

4 ohms:

 

> 385 W (25.9 dBW)

2 ohms:

 

> 485 W (26.9 dBW)

Damping factor

 

> 180

(Reference 8 ohms at 50Hz)

 

 

Input Impedance

 

R = 1 M

 

 

C = 180 pF

Input sensitivity (for rated output into 8 ohms)

1250mV+/-50mV

Voltage gain

 

29 dB

Frequency response 20 Hz - 20 kHz

 

±0.2 dB

 

 

- 3dB at 3 Hz and 70 kHz

Signal / Noise ratio, A-weighted

 

>96 dB ref. 1 W

 

 

>118 dB ref. 160W

DIMENSIONS AND WEIGHTS

 

 

Net Weight

 

96.3Ib (43.7kg)

Shipping Weight

 

115 Ib (52kg)

Dimension (W H D)

Net

17.2 x 7.9 x 18.4”(435 x 200 x 466mm)

 

Gross*

17.2 x 8.5 x 19.5”(435 x 215 x 495mm)

*Gross dimensions include feet, volume knob, power button and extended speaker termianls.

Specifications are subject to change without notice. For updated documentation and features please log onto

www.nadelectronics.com for the latest information about your M25.

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Contents Seven Channel Power Amplifier Important Safety Instructions Important Safety InstructionsBlue Neutral Brown Live Important Information for UK CustomersIf in Doubt Consult a Competent Electrician Front Panel Controls Panel CONNECTIONS/CONTROLS Spade Wire Powerdrive About the M25 DesignInputs IEC Power SocketInstallation Precautions Save ALL the PackagingAuto Trigger ON/OFF Ground ConnectorInput Level Controls 12V-TRIGGER InputSoft Clipping Light Power SWITCH/STANDBY LEDProtection LED Front Panel ControlsIHF Dynamic Power Troubleshooting Problem Cause SolutionSpecifications Amplifier Section Dimensions and WeightsSvenska Português Italiano Español Deutsch Français English Propos DU M25 LA ConceptionEmbase Dalimentation IEC Précautions Concernant L’INSTALLATIONConnexions / Commandes SUR LA Face Arrière EntréesEntrée DE Commande 12 V Trigger Commandes DE Niveau D’ENTRÉEMarche / Arrêt DE LA Liaison DE Commande Automatique Connexions DES HAUT-PARLEURSLeds DE Protection Commandes SUR LA Face ParlanteConnecteur DE Mise a Terreground Témoins D’ÉCRÊTAGE DouxDépannage Problème Cause Solution CaractéristiquesSvenska Português Italiano Español Deutsch Français English Powerdrive Über DEN M25 DAS DesignIEC-NETZBUCHSE EingängeTRIGGEREINGANG12 V Trigger EingangspegeleinstellerLautsprecheranschlüsse SOFT-CLIPPINGAnzeige VON SOFT-CLIPPING NETZSCHALTER/STANDBY- LEDBEREITSCHAFTSMODUS-LEDPROTECTION-LEDSCHUTZSCHALTUNG-LED FrontplattenelementeIHF Dynamische Leistung Problemlösung Ursache AbhilfeTechnische Daten Abmessungen UND GewichtSvenska Português Italiano Español Deutsch Français English NAD M25-Zevenkanaalseindversterker Informatie Omtrent DE M25 HET OntwerpIEC-AANSLUITING IngangenAuto Trigger ON/OFF AAN/UIT Bedieningselementen Voor HET IngangsniveauLuidsprekeraansluitingen Ingang 12V-TRIGGERBEVEILIGINGS-LEDS Indicatoren ‘SOFT CLIPPING’ Geluidspieken AfkappenAAN/UIT-SCHAKELAAR / STANDBY-LED Bedieningselementen FrontpaneelProblemen Oplossen Probleem Oorzaak Oplossing Technische GegevensPage NAD M25 Amplificador De Potencia De Site Canales Sobre EL M25 EL DiseñoToma DE Alimentación IEC EntradasAutodisparador ON/OFF Controles DE Nivel DE EntradaConexiones DE Altavoz Entrada DEL Disparador DELuces DE Soft Clipping Diodo LED DE Interruptor DE ALIMENTACIÓN/RESERVA StandbyDiodos LED DE Protección Controles DEL Panel DelanteroEspecificaciones Investigación DE Averías Problema Causa SoluciónDimensiones Y Pesos Potencia Dinámica IHFSvenska Português Italiano Español Deutsch Français English NAD M25 Amplificatore Di Potenza a Sette Canali Parliamo DELL’M25 IL DesignPresa DI Alimentazione IEC Input12V Trigger Input Comandi Livello DI InputConnessioni Degli Altoparlanti Connettore MassaLuci Soft Clipping Interruttore DI ALIMENTAZIONE/LED DI StandbyLED DI Protezione Comandi DEL Quadro AnterioreSpecifiche Ricerca Guasti Problema CausaDimensioni E Pesi Potenza Dinamica IHFSvenska Português Italiano Español Deutsch Français English Powerdrivecircuito DE Transmissão DE Potência Acerca do M25 DesignNotas Sobre O Local DE Instalação Tomada DE Alimentação IECCuidados a TER NA Instalação Guarde Todas AS EmbalagensAuto Trigger ON/OFF LIGAR/DESLIGAR Disparador Automático Comandos do Nível DE EntradaLigações DOS Altifalantes Entrada do Disparador DE 12Protection Leds Leds DE Protecção Ground Connector Terminal DE TerraP1. Interruptor DE Alimentação Power / LED DE Standby Luzes Indicadoras do Circuito Soft ClippingPotência Dinâmica IHF Resolução DE Problemas Causa SoluçãoEspecificações Dimensões E PesosSvenska Português Italiano Español Deutsch Français English NAD M25 Sjukanals Effektförstärkare KonstruktionenIEC Nätkontakt IngångarOmkopplare FÖR Automatiskt AV OCH Påslag Ingångarnas NivåreglageHögtalarkontakter Ingång FÖR Automatiskt AV OCH PåslagSoft Clipping Indikator AV/PÅ Knapp OCH Standby LysdiodKanalindikatorer Kontroller PÅ Apparatens FramsidaIHF Dynamisk Effekt Felsökning Orsak LösningSpecifikationer Mått OCH ViktSvenska Português Italiano Español Deutsch Français English

M25 specifications

The NAD M25 is a powerful multichannel amplifier that represents the pinnacle of performance and versatility in the world of high-fidelity audio. Designed to cater to both audiophiles and home theater enthusiasts, the M25 is a testament to NAD's commitment to delivering high-quality sound and state-of-the-art technology.

One of the standout features of the NAD M25 is its robust power output. The amplifier delivers 160 watts per channel, with the ability to drive up to seven channels simultaneously. This makes it an ideal choice for a complete surround sound system, ensuring that every detail is reproduced with clarity, dynamics, and precision. The M25 utilizes NAD's proprietary PowerDrive technology, which optimizes the amplifier's output capabilities while maintaining low distortion levels, thus providing a refined listening experience.

The build quality of the NAD M25 is notable, featuring a solid chassis that minimizes vibrations and interference. This attention to detail not only enhances performance but also ensures long-lasting durability, making it a worthy investment for any audio setup. Furthermore, the amplifier is designed with high-quality components, including premium capacitors and transistors, which contribute to its overall sound quality and reliability.

Another significant technology integrated into the M25 is NAD's Dynamic Power, which allows the amplifier to deliver peak power levels that adapt to the demands of the audio being played. This feature enhances the amplifier's ability to handle dynamic music passages without compromising sound integrity, thus offering an exhilarating listening experience whether it’s music or movie soundtracks.

The NAD M25 also boasts flexibility in terms of connectivity. It includes a variety of inputs, such as balanced and unbalanced connections, which allow for easy integration into existing audio systems. Its design also supports bi-amping, giving users the ability to customize their setups to achieve optimal performance.

In terms of energy efficiency, the NAD M25 operates at a high level of effectiveness, complying with various energy-saving standards. This not only benefits the environment but also reduces operational costs for users over time.

In summary, the NAD M25 is a high-performance multichannel amplifier that excels in delivering power, clarity, and versatility. Its combination of advanced technologies, robust build quality, and user-friendly features make it an excellent choice for anyone looking to elevate their audio experience, whether for music, movies, or gaming. With the M25, NAD has once again proven its dedication to crafting audio equipment that meets the highest standards of quality and performance.