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Page 8 

 

10 Specification & Features 

 

 

KT120/KT150 output valves 

 

6SN7/CV181 (6N8) 1

st

 and 2

nd

 stage 

 

Hand wired point to point components 

 

Ceramic valve bases for minimum leakage 

 

90w RMS* UL maximum one channe

l driven 8Ω 

 

85w RMS* UL both channels 

8Ω 

 

50w RMS* Triode both channels 

8Ω  

 

65w RMS* 

per ch Ultralinear 8Ω KT88 

 

36w RMS* per channel Triode mode 8Ω KT88 

 

Feedback: 6db High sensitivity, 18db Low sens 

 

Signal to noise level -90db 

 

Damping Factor low gain: 20.5 

8Ω Triode/UL 

 

Damping Factor high gain: 5.5 

8Ω Triode/UL 

 

Freq response 20Hz (-0db)-20khz (0db) any power 

 

Full power bandwidth 20Hz (-0 db)-35khz -3db 

 

Total Harmonic Distortion UL 8 ohms: 

 

1 Watt 0.06% 

 

8 Watts 0.2% 

 

72 Watts 0.5% 

 

4 and 8 ohms output taps 

 

Japanese grain oriented transformer iron  

 

Icon Audio Low Distortion output transformers 

 

Choke regulated power supply 

 

Supplied with attractive valve cover 

 

3 potted transformers to reduce transformer noise 

 

High 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 plated copper PTFE audio wire 

 

Valves carefully matched for best performance 

 

Gold plated Input & speaker terminals  

 

Inputs for CD, Tape, Tuner, Aux 

 

Tape monitor output 

 

295mv sensitivity for full output (High sensitivity) 

 

1030mv sensitivity for full output (Low sensitivity) 

 

117/240 Volts, 200 Watts (400W max full power) 

 

Standby 80 Watts  

 

3.15 amp (5A 115/120v) rear fuse (with spare) 

 

500ma Internal HT fuses (spares inside) 

 

Overall size:440W, 400D, 230H, 35kg (Allow space for connections and ventilation) 

 

IEC mains lead, (plug 5amp fused UK) 

 

CE, ROHS, WEEE compliant 

Typical valves and conditions 240V 50 Hz 
* Refers to measured RMS voltage across 8 Ohms. 240v/117v at clipping point, KT88 use requires a lower HT tap. 

(Specifications subject to change, errors & omissions excepted 19/02/20) 
 

Every effort is made for the accuracy of this information. 
But inevitably errors can happen. Please let us know if  
you spot an error. 

Содержание Stereo 60 MK IV

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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