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Music Reference RM-200 MK-I and MK-II 

 
 

100-Watts Per Channel Stereo Power Amplifier 

 

Owner’s manual 

 

2010 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Music Reference/RAM Labs 

Santa Barbara, CA

 

805 687 2236 

www.ramlabs-musicreference.com

 

www.tubeaudiostore.com

 

 

 

 

 

 

 

 

Summary of Contents for RM-200 MK-I

Page 1: ...Reference RM 200 MK I and MK II 100 Watts Per Channel Stereo Power Amplifier Owner s manual 2010 Music Reference RAM Labs Santa Barbara CA 805 687 2236 www ramlabs musicreference com www tubeaudiostor...

Page 2: ...each tube into its corresponding position socket as marked on your RM200MkI MkII s top plate Please note your RM200MkII has two 70 Amp rated high in rush power switches for long switch life One power...

Page 3: ...nnections LIGHT LOADING YOUR RM200MkI MkII You may always connect an 8 Ohm speaker on your RM200MkI MkII s 4 Ohm speaker tap however not the other way around Your RM200MkI MkII amplifier actually appr...

Page 4: ...the correct operating values for your RM200MkI MkII BIASING THE OUTPUT TUBES Your RM200MkI MkII was fully adjusted and calibrated at our factory No further adjustments are necessary However we highly...

Page 5: ...the Recommended mV and Maximum mV Bias Values listed in the table above for your RM200MkI MkII 5 Then test the other tube in that same channel say V4 by inserting the red positive probe into the test...

Page 6: ...LOYING RM200MkII s CAPACITOR FORMING CIRCUIT Your RM200MkII employs two 70 Amp rated high in rush power switches for long switch life One power switch is marked Master Forming and the other is marked...

Page 7: ...oth ceramic This is clearly not factual TUBES The six tubes in your RM 200MkI MkII have been carefully selected by RAM Labs for best performance The operating parameters have also been selected to ach...

Page 8: ...ible Often an FM tuner connected to the Cable TV system or outside antenna will cause hum in the entire system due to AC pickup in the coaxial cable coming in Always disconnect the tuner audio cables...

Page 9: ...we have found speakers whose impedance drops markedly below the values stated by the manufacturer When played hard for long periods of time this drop in impedance below the stated value causes overhea...

Page 10: ...fuse blows the tubes will not light and the amp will act like it is off or unplugged If one pair or two pairs of output tubes do not light but the drivers do the problem is an open filament bad tube s...

Page 11: ...X 7 H 17 1 4 L X 14 1 2 D X 7 H DESIGNER Roger A Modjeski Roger A Modjeski Roger A Modjeski WARRANTY Your RM200MkI MkII and its tubes are warranted fro 1 year from the date of sale to the original ow...

Page 12: ...ing and shipping materials in case you move or need to ship your RM200MkI MkII Replacement Packing Sets are available for purchase directly from RAM Labs TUBE SEATING CHART TUBE POSITION SERIAL NUMBER...

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