icon Audio Stereo 60 MK IV Instruction Manual Download Page 10

Page 10 

 

Caution: This amplifier is very heavy! 

 

Lift  the  amplifier  out  of  its  packing  by 
using  the  two  “hand  cut-outs”  in  the 
bottom packing near the transformers. 

 

Or you may find it easier to remove the 
unit using the following procedure: 

 

1.  With  the  top  packing  in  place,  turn 

the box “upside down” with the “flaps” 
open. 

2.  Lift the cardboard box off. 
3.  Remove the bottom packing first. 
4.  Turn  the  unit  the  right  way  up  and 

remove the top packing. 

 

Please be careful not to damage the 
small  “tape  monitor”  and  “triode” 
switches on the front panel 

 

When  re-packing  ensure  the  two  hand  cut-outs  are 
towards the rear of the amplifier. 
Do not ship with the valve cover as damage is likely to 
occur,  but  send  separately.  Do  not  return  valve  cover 
for service. 

 (Please keep this information for future use). 

Summary of Contents for Stereo 60 MK IV

Page 1: ...e In addition we have incorporated features like switchable TRIODE mode and adjustable sensitivity well as 4 Ohm outputs to match a wide range of operating conditions In Ultralinear mode the power is...

Page 2: ...Triode mode Run min 8 hour test Check inputs tape monitor Output Valve Bias level Sound Quality Valve Microphony Valve Seating Hum level left right mv mv RF Test Power out 1 kHz 8ohms L R Channel Bal...

Page 3: ...the down position The amplifier should now be working All valves should have a visible orange glow from the cathode heaters With the volume control set to minimum fully anti clockwise there should be...

Page 4: ...ted to these terminals unnecessarily Connecting loudspeakers 4or 8 Ohms The output impedance of the Stereo 60 MK IV has been optimised to work with 3 12 ohm speakers Many modern speakers use a 4 ohm b...

Page 5: ...plified through the speakers with the possibility of damage in some cases The solution is to switch on the preamplifier first with the ST60 MK IV in standby until the preamplifier is working normally...

Page 6: ...be no sound on that channel You can test for this by checking the bias a zero reading would normally mean a blown fuse Also the valve s in question will be much cooler to the touch be careful Replacem...

Page 7: ...gineer You are welcome to speak to one of our engineers by phone or email Most dealers and Icon Audio are happy to re bias and check you amplifier free of charge No reading at all or 0 may mean a faul...

Page 8: ...igh quality metal film wire wound resistors High quality polypropylene audio caps Optional Mundorf Silver Gold audio caps Japanese Blue ALPS volume pot Rubicon Nichichron power capacitors Silver plate...

Page 9: ...f replacement This amplifier is designed for normal domestic hi fi use It is not guaranteed for commercial Public Address use or use in other situations The guarantee becomes void if the unit has been...

Page 10: ...wn with the flaps open 2 Lift the cardboard box off 3 Remove the bottom packing first 4 Turn the unit the right way up and remove the top packing Please be careful not to damage the small tape monitor...

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