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Buzzaudio MA-2.2B User Manual

True class a
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MA-2.2B TRUE CLASS A
MICROPHONE AMPLIFIER.
USERS MANUAL.
MA-2.2B USERS MANUAL 2019. CONTENTS COPYRIGHT BUZZ AUDIO LTD
PO BOX 171, BLENHEIM 7240, NEW ZEALAND. TELEPHONE 64(0)3-577-5597.
http://www.buzzaudio.com
email management@buzzaudio.co.nz

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Summary of Contents for Buzzaudio MA-2.2B

  • Page 1 MA-2.2B TRUE CLASS A MICROPHONE AMPLIFIER. USERS MANUAL. MA-2.2B USERS MANUAL 2019. CONTENTS COPYRIGHT BUZZ AUDIO LTD PO BOX 171, BLENHEIM 7240, NEW ZEALAND. TELEPHONE 64(0)3-577-5597. http://www.buzzaudio.com email management@buzzaudio.co.nz...

  • Page 2: Table Of Contents

     Warm Up. The Buzz Audio MA-2.2B utilises discrete Class A amplifiers which take about 30 mins to warm up. We suggest you keep the MA-2.2B switched on whilst in regular use to ensure continuous sonic performance. Contents… 1] The Mains Input - page 2...

  • Page 3: The Mains Input

    Fitting the wrong fuse may result in the fuse blowing on power up or inadequate protection. Fitting fast blow type fuses may also result in the fuse blowing on power up. The MA-2.2B may have been shipped with the mains set up to match your country but it pays to check.
  • Page 4 Pin 2 = Signal Hot (+) Pin 3 = Signal Ground (common) If you treat the MA-2.2B output as balanced and use normal XLR balanced leads there should be no problems connecting to other gear. If the optional output transformer is fitted (see the section on Options) the XLR is wired as follows;...

  • Page 5: Controls And Indicators

    3] Controls and Indicators  GAIN dB Adjusts the gain/volume of the MA-2.2B from +14dB in 2dB steps up to +48dB then 3dB steps up to +66dB.  MUTE This push button switch mutes the MA-2.2B audio output when illuminated. Not much more can be said about it! ...

  • Page 6: Options

     OUTPUT LEVEL The 19 LED bar graph displays the output level of the MA-2.2B in dBu and has a fast attack response similar to a peak program meter.  POWER On the far right of the front panel (where it should be) is the mains power switch. We recommend that your MA-2.2B remains powered whilst in regular use to maintain it’s...

  • Page 7: Service

    48V phantom switched on. Switch the PAD on and MUTE the output. This will avoid huge transients entering the amplifier front end.  Clean the MA-2.2B with a damp cloth and a little detergent. Do not use solvents or isopropyl alcohol, it may damage the finish and possibly remove the front panel screen printing.

  • Page 8: Warranty Information

    MA-2.2B True Class A Microphone Amplifier.  Standard Product Warranty Buzz Audio guarantees the MA-2.2B True Class A Microphone Amplifier to be free of defective materials and/or workmanship for a period of 1 year (12 months) from the date of sale, and will replace defective parts and repair malfunctioning products under this warranty when the defect occurs under normal installation and use –...

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