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

Models: M25

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TROUBLESHOOTING

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