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AMS50

 

AMPLIFIER SPECIFICATIONS

 

 

 

 Issue 

1

 

 

Page 11

 

of

 

12 

 

Output:  

Power   

 

 

50 Watts per channel into 8 Ohms (17dBW), 

      100 

Watts 

per 

channel 

into 

Ohms 

 

 

Voltage, RMS   

 

20 Volts 20Hz to 20 kHz 

  Voltage, 

Peak-to-peak 

 58 

Volts 

  Current 

peak-to-peak 

 100 

Amps 

  Damping 

factor 

  190 

  Output 

devices 

 

  12 

per 

channel 

 

 

Thermal cut out (internal temp)  70ºC 

 

 

 

Balanced Line input: 
 

 

THD + noise, 20Hz to 20 kHz  < 0.006% unwtd. 

 

 

Signal to noise ratio 

 

> 110dB ‘A’-weighted 

 

 

Input sensitivity for 50 Watts 

650mV 

  Input 

impedance  50k 

Ohms 

 

 

Frequency response 

  

10Hz to 40 kHz, +0, -0.4dB 

 

 

 

Connections:  

 

 

 

 

Line level inputs 

 

1 pair line level XLR (balanced) connectors 
1 pair line level RCA connectors 

  Speaker 

outputs 

  4 

pair 

4mm banana plug/binding posts 

Trigger 

input 

  3.5mm/

” mono jack socket 

  Trigger 

level 

  ±5V 

to 

±12V 

 
 
Power requirement: 

 

 

 

Mains voltages:  

 

115/230VAC 50/60Hz (factory pre-set) 
100VAC 50/60Hz (alternative) 

 

 

Consumption:   

 

600 Watts maximum into 8 Ohms 
14 Watts idle (mains LEDs lit) 

 
Weight: 

 60 

kg 

 132 

lbs 

 unit 

only, 

unboxed 

  65 

kg 

 143 

lbs 

 in 

shipping 

carton 

 
Dimensions: 

483 mm 

19 inches  

wide 

 

 

325 mm 

12¾ inches  

high including feet 

 

 

460 mm 

18¼ inches  

deep (front to back) including terminals 

 
Standard accessories:   

 

 

IEC type mains lead (10-Amp type), 

 

 

 

Musical Fidelity reserves the right to make 
improvements which may result in specification or 
feature changes without notice. 

 

Summary of Contents for AMS50

Page 1: ...nced cable cancels out noise and interference artefacts giving up to 12dB increase in dynamic range The Primo Pre amplifier is an ideal partner as it features a fully valve signal path and true balanced operation throughout Alternatively the AMS50 can be used as a conventional power amplifier driven by a high quality preamp The AMS50 is a perfect answer to pure musicality in a single beautifully e...

Page 2: ...ation 5 Item disposal information EU disposal information 6 Installation Introduction Installation Audio connection Cleaning 7 Connections Illustrations front and rear panels 8 Amplifier operation Operation and features 9 Amplifier problems Basic Amplifier fault finding 10 Amplifier specifications Typical specifications accessories And dimensions 11 Manual history ...

Page 3: ...ce may not correspond with the coloured markings identifying the terminals in your plug proceed as follows The wire which is coloured green and yellow must be connected to the terminal in the plug which is marked with the letter E or coloured green or green and yellow or by the earth symbol The wire which is coloured brown must be connected to the terminal which is marked with the letter L or colo...

Page 4: ...r place water filled containers on the AMS50 for example a flower vase or potted plants If water does spill inside immediately pull out the mains plug from the wall socket and inform your dealer who should then check the unit before further use Entry of liquid into the AMS50 is dangerous and may cause electric shock or fire hazard Do not place the unit near direct heat sources such as radiators di...

Page 5: ...tto FACHGERECHTE ENTSORGUNG Das auf der Geräterückseite angebrachte Label deutet darauf hin dass das Produkt nicht mit konventionellem Hauskehricht entsorgt werden darf Um Schäden und Verschmutzungen an Umwelt und Mensch zu vermeiden muss das Produkt fachgerecht entsorgt und von anderem Abfall getrennt werden Wenden Sie sich bei Fragen hierzu an Ihren Fachhändler oder an eine öffentliche Informati...

Page 6: ...ndingly up Note in both input cases it is assumed that the driving preamplifier has a VOLUME CONTROL to allow setting of listening level This is important as the AMS50 has no volume control of its own OUTPUTS Connect loudspeakers to the terminals near the base of the back panel marked as OUTPUTs Make sure lead from amplifier speaker output goes to lead on speaker terminals and to It is most import...

Page 7: ... RIGHT CHANNEL Operate LED 7 RIGHT CHANNEL Mains LED BACK PANEL 8 DUAL RIGHT SPEAKER Output binding posts 9 RIGHT XLR Balanced input socket 10 RIGHT RCA Input socket 11 XLR RCA Input selector switch 12 LEFT RCA Input socket 13 LEFT XLR Balanced input socket 14 DUAL LEFT SPEAKER Output 4mm binding posts 8 9 10 11 12 13 14 15 16 17 15 MAINS ON OFF switch 16 TRIGGER input 3 5mm jack 17 MAINS INLET IE...

Page 8: ...t and mains LEDs extinguish indicating the unit is ready for use Alternatively using the TRIGGER input switch on the triggering unit preamp Home Theatre processor etc and the AMS50 will come on automatically OVERHEAT Should any internal overheat situation have been reached the amplifier will cut out there will be no more sound output and the orange LED will light Unit will remain in this state unt...

Page 9: ... to terminal on speaker Note Most cables have polarity markings to help get this right Unit cuts out orange LED lit Overheating Make sure unit is situated to allow free air circulation Allow to cool down before attempting to switch on again Flashing RED LED Short circuit in speaker output leads Problem in speakers Grounded via speaker Check speaker leads connected to SPEAKER OUTs on AMS50 and spea...

Page 10: ...AMS50 AMPLIFIER SPECIFICATIONS Issue 1 Page 10 of 12 ...

Page 11: ...el inputs 1 pair line level XLR balanced connectors 1 pair line level RCA connectors Speaker outputs 4 pair 4mm banana plug binding posts Trigger input 3 5mm mono jack socket Trigger level 5V to 12V Power requirement Mains voltages 115 230VAC 50 60Hz factory pre set 100VAC 50 60Hz alternative Consumption 600 Watts maximum into 8 Ohms 14 Watts idle mains LEDs lit Weight 60 kg 132 lbs unit only unbo...

Page 12: ...AMS50 MANUAL REVISION Issue 1 Page 12 of 12 RELEASE DATE CHANGES Issue 1 28th May 2009 05 28 1st issue ...

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