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SUPERCHARGER 

550K 

MONOBLOCK BRIDGED POWER AMPLIFIER 

INSTRUCTIONS  FOR  USE

 

Thank you for purchasing the Musical 
Fidelity Supercharger 550K monoblock. 
 The Supercharger 550K uses the latest in 
low distortion circuitry in a bridged 
configuration which delivers 550 watts rms. 
 The Supercharger 550K is designed to 
increase the dynamic range of an existing 
lower powered amplifier (from 50 watts to 
200 watts) to 550 watts. The dynamic range 
will increase by up to 10dB. This does not 
necessarily mean that the average listening 
level will be much louder; it’s just that 
musical transients will now be delivered 
without distortion or limiting. Overall the 
listening experience is greatly improved 
because of dramatically lower distortion 
and increased dynamic range.  
 The 550K accepts both speaker level and 
line level inputs. When driven from an 
existing amplifier the sound quality is 
greatly improved because the 550K presents 
an easy load for the existing amplifier to 
drive and at the same time gives up to 10dB 
increase in dynamic range. 
 Alternatively,  the  Supercharger 550K can 
be used as a conventional power amplifier 
driven by a high quality preamp. 
The Supercharger 550K is a perfect answer 
to improve dynamic range in a single 
beautifully engineered package. Used 
properly and carefully, it should give many 
years of outstanding musical reproduction. 
 Dust regularly with a soft duster or soft 
brush, but be careful when using cleaning 
or polishing agents - they may harm the 
surface finish. 
 If there are further questions about any 
Musical Fidelity component, please consult 
the dealer from whom it was purchased, 
who is there to help and give advice. 

 

 

 

Summary of Contents for Supercharger 550K

Page 1: ...tortion and increased dynamic range The 550K accepts both speaker level and line level inputs When driven from an existing amplifier the sound quality is greatly improved because the 550K presents an easy load for the existing amplifier to drive and at the same time gives up to 10dB increase in dynamic range Alternatively the Supercharger 550K can be used as a conventional power amplifier driven b...

Page 2: ...s User information 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: ... this appliance 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 let...

Page 4: ...not use near water or place water filled containers on the 550K 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 550K is dangerous and may cause electric shock or fire hazard Do not place the unit near direct heat sources su...

Page 5: ...o dell appare FACHGERECHTE ENTSORGUNG Das auf der Geräterückseite angebrachte Label deutet 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 Informatio...

Page 6: ...has no control of its own OUTPUTS Connect loudspeakers to the terminals near the base of the back panel marked as OUTPUT TO SPEAKER For setups using more than one 550K it is important to get the phase of these leads correct in all units Use the RED ends of the supplied brown cable to connect positive on the Supercharger output to the positive binding post on the speaker and the BLACK ends to conne...

Page 7: ...EL FUNCTIONS REAR PANEL LED mains power RED LED operate BLUE LED temperature ORANGE INPUT RCA line level SLIDE SWITCH line speaker input selector INPUT4mm banana binding posts Loudspeaker level ROCKER SWITCH Mains on off IEC SOCKET mains inlet LOUDSPEAKER OUPUTS 4mm banana binding posts ...

Page 8: ...lifier sees no signal on selected input for more than 30 minutes it will automatically revert to standby mode 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 until it has cooled down again If overheat mode persists check wiring for errors driver amplifier for...

Page 9: ...p get this right Unit cuts out orange LED lit Overheating Short circuit in speaker output leads Problem in speakers Grounded via speaker Make sure unit is situated to allow free air circulation Check speaker leads connected to SPEAKER OUTs on 550K and speaker ends for stray strands or short circuits Check speakers Both the and speaker output terminals on this unit are hot Some speakers e g active ...

Page 10: ...ise ratio 115dB A weighted Input sensitivity for 550 Watts 33V Input impedance 50 Ohms Connections Line level inputs 1 line level RCA connector Speaker inputs 1 pair 4mm banana plug binding posts Speaker outputs 1 pair 4mm banana plug binding posts Power requirement 100 115 230Volts AC 50 60Hz factory pre set 1000 Watts maximum into 8 Ohms 53 Watts idle Weight 12 1 kg 26 lbs unit only unboxed 15 k...

Page 11: ...Supercharger 550K MANUAL REVISION Issue 1 16th June 2007 RELEASE DATE CHANGES Issue 1 16th June 2007 1st release Page 11 of 11 ...

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