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Margules U280SC User Manual

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Amplifier U280SC

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Page 1 Amplifier U280SC...
Page 2 Margules has developed the Active Servo Bias also sets DC bias and AC drive levels BEFS (Back Electromotive Force Sensor), which changes automatically, assuring optimum electrical and sonic the amplifier’s output impedance as the load requires.
Page 3 Operation: Do not substitute with other type the two 12AU7 tubes in It is very important to set select the output impedance the back of the amplifier. You will unbalance the circuit correctly. and will raise the distortion. To use the amplifier in Stereo mode the range is the following: Break-in The break in period is about 150 hours of music...
Page 4 Troubleshooting You can change the tonal characteristics by placing your Doesn’t turn on amplifier in different type of supports like footer, spikes, Look for: etc. - Proper connection to the wall outlet. -The rear switch to be in on position. To minimize unwanted noise in the system: -The U280 SC has a 3-minute delay pre warm up time.
Page 5 Characteristics For more information please contact us at: Frequency response 10-45KHZ Power MARGULES AUDIO Ultralinear 60W/channel Uruapan #17-4 Triode 30W/channel Col. Roma Mono (Ultralinear). 120W. Mexico D.F. 06700 Mono (triode). 60W. Mexico. Noise 1.2M.V. Tel. (525)514 7448 Maximum total harmonic distortion 0.35%...