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Related Manuals for Buzzaudio MA 2.2
Summary of Contents for Buzzaudio MA 2.2
- Page 1 MA 2.2 TRUE CLASS A MICROPHONE AMPLIFIER. USERS MANUAL. MA 2.2 USERS MANUAL VERSION-1, MARCH 2000. CONTENTS COPYRIGHT BUZZ AUDIO 2000. PO BOX 6677, WELLINGTON, 6141 NEW ZEALAND. TELEPHONE 64+4+472-3084. http://www.buzzaudio.com email management@buzzaudio.co.nz...
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Page 2: Table Of Contents
True Class A Microphone Amplifier. In this manual you will find important information regarding the use of your MA 2.2 and we suggest that you do read it before using the unit. If after unpacking the MA 2.2 you find any damage you should contact your dealer or supplier immediately for advice on what to do. -
Page 3: The Mains Input
1] The Mains Input. As a safety precaution your MA 2.2 is shipped without a mains fuse fitted. Before use, you must select the correct mains voltage for your local supply on the rear panel and fit the correct mains fuse type into the fuse draw for that voltage. -
Page 4: Connections
• The Chassis Ground connection is intended for connecting cable SHIELDS. When connecting the MA 2.2 output to other devices, it is not always necessary to connect the shield at both ends of the cable. This may help prevent earth loops occurring. The mic input Signal Ground however is always connected at both ends to ensure correct shielding of the cable and mic body. -
Page 5: Controls And Indicators
0dB … -20dB • Input attenuator. In the up position the gain of the MA 2.2 is as marked around the GAIN knob. In the down position, a pad is inserted at the input, reducing overall gain by 20dB. Use for high level inputs such as drums when you can’t turn down the GAIN far... - Page 6 SOFT position. Please Note… • The mains earth to MA 2.2 chassis connection is unaffected by this switch. Also, the Chassis Ground connection on the output connectors is unaffected by this switch. Also see the Connections section of this manual.
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Page 7: Options
PAD to –20dB and MUTE the output. This will avoid huge transients entering the amplifier front end. Clean the MA 2.2 with a damp cloth and a little detergent. Do not • use solvents or isopropyl alcohol, it may damage the finish. -
Page 8: Service
Should you experience any technical problem with your MA 2.2, contact your dealer or Buzz Audio for recommendations on what to do. The modular nature of the MA 2.2 construction means most electronic faults can be easily repaired by swapping circuit boards. -
Page 9: Internal Adjustments
8] Internal Adjustments. The following information is provided should your MA 2.2 require • re-calibration. All adjustments are performed in the factory and should not need re-adjustment unless the amplifier modules and/or other components have been replaced. You may wish to alter the PK LED threshold to a lower or higher setting. -
Page 10: Initial Setup
See the previous page for the location of the trimmer pots. Set all front panel switches (except for the PWR obviously) to the UP position. Set the GAIN knob fully anticlockwise. The MA 2.2 should be powered up for 1 hour before making adjustments. All measurements are referenced to 0dBu = 0.775V RMS, (sometimes... -
Page 11: Warranty Information
Register your purchase on-line at our web-site www.buzzaudio.com. The Extended Warranty is transferable. Your Dealer is… MA 2.2 USERS MANUAL VERSION-1, MARCH 2000. CONTENTS COPYRIGHT BUZZ AUDIO 2000. PO BOX 6677, WELLINGTON, 6141 NEW ZEALAND. TELEPHONE 64+4+472-3084. http://www.buzzaudio.com email management@buzzaudio.co.nz...
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