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Musical Fidelity AMS50 manual

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Table of contents for the manual

  • Page 1

    AMS50 ANTONY MICHAELSON SIGNATURE 50W Pure Class A Dual Mono Power Amplifier Thank you for purchasing the Musical Fidelity AMS50. The AMS50 uses the latest in low distortion circuitry in a br idged configuration which delivers 50 watt s of pure class A power. The AMS50 is designed with pure undistorted experience in mind. Overall the listening ex p[...]

  • Page 2

    AMS50 CONTENTS Issue 1 Page 2 of 12 PAGE Section 3 Safety informa tion - Mains plug (U.K. onl y) Modificatio n warning 4 General advice - - Installation precautions User inform ation 5 Item disposal informa tion - EU disposal info rmation 6 Installation - Introduction Installation Audio connection Cleaning 7 Connections - Illustrations - front and [...]

  • Page 3

    AMS50 SAFETY INFORMATION Issue 1 Page 3 of 12 IMPORTANT ! (U.K. only) This unit is supplied in the U.K. with mains lead fitted with a moulded 13 amp plug. If, for any reason, you need to cut off t he plug, please remove the fuse holder and dispos e of the plug safely, out of reach of children. It must n ot be plugged into a mains outlet. The wires [...]

  • Page 4

    AMS50 GENERAL ADVICE Issue 1 Page 4 of 12 INSTALLATION PRECAUTIONS and USER INF ORMATION Your new AMS50 is designed and built to provide troub le-free perf ormance, but as with all electronic devices it is necessary to observe a few precaut ions: This unit features a BRID GED speak er output and sh ould NOT be groun ded on eithe r speaker o utput t[...]

  • Page 5

    AMS50 ITEM DISPOSAL INFORMATION Issue 1 Page 5 of 12 DISPOSAL The crossed out wheeled bin label that appe ars on the back panel of the product indicates that the pr oduct must not be disposed of as normal household waste. To prevent possible h arm to the environment please separate the product from other waste to ensure that it can be recycled in a[...]

  • Page 6

    AMS50 INSTALLATION Issue 1 Page 6 of 12 SETTING UP Position the AMS50 on a stable, horizontal surface where there is no risk of it being knocked. Make sure ALL units involved are switched off and unplugged from mains supply before making or removing any connections. During normal use, a class A amplifier, such as the AMS50, develops an appreciable [...]

  • Page 7

    AMS50 AMPLIFIER CONNECTIONS Issue 1 Page 7 of 12 FRONT PANEL 1 2 3 4 5 6 7 1. LEFT CHANNEL Mains LED 2. LEFT CHANNEL Operate LED 3. LEFT CHANNEL Temperature LE D 4. POWER Switch 5. RIGHT CHANNEL Temperature L ED 6. RIGHT CHANNEL Operat e LED 7. RIGHT CHANNEL Mai ns LED BACK PANEL 8. DUAL RIGHT SPEAKER Output binding posts 9. RIGHT XLR Balanced inpu[...]

  • Page 8

    AMS50 AMPLIFIER OPERATION Issue 1 Page 8 of 12 POWER ON Once all connections are made, switch on the unit, using the ON/OFF rocker switch on the back panel. On the front panel of the AMS50 the front MAINS LEDs glow to indicate mains is present. To switch the unit on use front panel button, press once and the operate LEDs will light (and mains LEDs [...]

  • Page 9

    AMS50 AMPLIFIER SPECIFICATIONS Issue 1 Page 9 of 12 Basic problem-solving with an amplifier is similar to troubleshoot ing other electrical or electronic equipment. Always check the most obvious possible causes fi rst, such as the following examples: Problem Probable Cause Remedy No power when POWER switched turned on Mains power plug is not fully [...]

  • Page 10

    AMS50 AMPLIFIER SPECIFICATIONS Issue 1 Page 10 of 12[...]

  • Page 11

    AMS50 AMPLIFIER SPECIFICATIONS Issue 1 Page 11 of 12 Output: Power 50 Watts per channel into 8 Ohms (17dBW), 100 Watts per channel into 4 Ohms Voltage, RMS 20 Volts 20Hz to 20 kHz Voltage, Peak-to-peak 58 Volts Current peak-to-peak 100 Amps Damping factor 190 Output devices 12 per channel Thermal cut out (internal temp) 70ºC Balanced Line input: T[...]

  • Page 12

    AMS50 MANUAL REVISION Issue 1 Page 12 of 12 RELEASE DATE CHANGES Issue 1 28 th May 2009-05-28 1 st issue[...]