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Technical Specification 

 
Dimensions: 

 

 

483×88×333 mm 

Weight: 

 

 

 

9.78 kg 

Cooling:   

 

 

Forced air cooling  

 

 

 

 

via 80mm low noise DC fan. 

Maximum output power: 

 

120 W RMS 

Maximum output voltage: 

 

280 V peak-peak. 

Input impedance (microphone):  

600 

Ω 

Input impedance (line): 

 

10 kΩ 

Input sensitivity (microphone):   

3 mV (-48 dBm) 

Input sensitivity (line): 

 

200 mV (-12 dBm) 

 

 

Frequency response: 

 

80 Hz to 16 kHz ±3 dB 

Hum and noise: 

 

 

-85 dB 

Harmonic Distortion:  

 

0.5 % at full power output 

Power requirement:    

 

230V~ 50 Hz 160 VA 

Fuse:  

 

 

 

T2A  5×20 mm  

 

 

 

 

(2 Amp ANTI-SURGE 5×20 mm ) 

Connections:  

 

Mains: 

 

 

 

built-in cable. 

Input (microphone):   

 

¼" jacks 

Input (line): 

 

 

RCA phono plugs 

Output:    

 

 

spring terminals 

 

Disposal and Recycling 

 

You must not dispose of this product with domestic household waste. 
Most local authorities have specific collection system for products and disposal is 
free of charge to the end-user. 
When replacing an existing  product with a similar new product your retailer may 
take the old product for disposal. 
 
 

 

 

 

 

  

Summary of Contents for NJS401

Page 1: ...Page 1 NJS401 120 Watt 100 Volt line Mixer Amplifier ...

Page 2: ...ly Make sure that air intakes and exhausts are not obstructed Do not use this product in the immediate surroundings of a bath shower or swimming pool Do not place the mains lead beneath a carpet or rug Do not insert any object into this product through the grilles This may damage the heater or result in overheating or electric shock PAT Testing When used in a workplace this product must be safety ...

Page 3: ...t as mains cabled 100 Volt line loudspeakers The 100V line system was developed to allow a long distance between loudspeakers and the amplifier and to allow a large number of speakers to be connected to each amplifier In order to do this the audio is transmitted at a much higher voltage 100V rms than with a conventional low impedance amplifier such as a hi fi or disco amplifier Each loudspeaker is...

Page 4: ...nce lower than 4 Ω Make no connections to the 70V or 100V terminals The following combinations MAY be connected Speakers Combined impedance 1 16 Ω 16 Ω 2 16 Ω 8 Ω 3 16 Ω 5 3 Ω 4 16 Ω 4 Ω 1 16 Ω 1 8 Ω 5 3 Ω 2 16 Ω 1 8 Ω 4 Ω 2 8 Ω 4 Ω 1 4 Ω 4 Ω The following combinations MUST NOT be connected Speakers Combined impedance 5 16 Ω 3 2 Ω 3 8 Ω 2 7 Ω 4 8 Ω 2 Ω 1 4 Ω 1 8 Ω 2 7 Ω 1 16 Ω 2 8 Ω 3 2 Ω 2 4 Ω 2 ...

Page 5: ... and LINE 3 for a comfortable background music level Adjust the MASTER treble and bass controls for the greatest clarity when using the microphone The MUTE control allows the level of background music to be reduced automatically when the microphone MIC1 is being used Adjust the MUTE control on the rear panel for the greatest clarity of microphone announcements Note that the MUTE facility only oper...

Page 6: ...a dry 1 25mm paint brush remove any dust from the grilles If the mains lead is damaged it must be replaced by the manufacturer or an authorised service centre If the mains plug needs to be replaced proceed as follows Connect the brown wire to the terminal labelled L Connect the blue wire to the terminal labelled N Connect the green yellow wire to the terminal labelled with the earth symbol or E Ma...

Page 7: ...dB Hum and noise 85 dB Harmonic Distortion 0 5 at full power output Power requirement 230V 50 Hz 160 VA Fuse T2A 5 20 mm 2 Amp ANTI SURGE 5 20 mm Connections Mains built in cable Input microphone jacks Input line RCA phono plugs Output spring terminals Disposal and Recycling You must not dispose of this product with domestic household waste Most local authorities have specific collection system fo...

Page 8: ...ls and workmanship for a period of twelve months Should this product be operated under conditions other than those recommended at voltages other than the voltage indicated on the product or any attempts made to service or modify the product then the warranty will be rendered void The product you buy may sometimes differ slightly from illustrations This warranty is in addition to and does not affec...

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