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MXA Series 

 
 

TABLE OF CONTENTS

 

 
Front & Rear Panel Features 
 
Installation Instructions 
 
Specifications 
 
Block Diagram 
 
Warranty 

pgs. 2 & 3

pgs. 4 & 5

pg. 6

pg. 7

 

 

INTRODUCTION

 

 
The 

MXA Series

 of mixer/amplifiers combines a versatile 6-input mic/line mixer 

with either 35, 75, 150, or 300 Watt amplification.  Mixing functions include 
mic/line/tel inputs, selectable automatic & manual channel muting, channel 
priority assignment, remote level control, tone control, a built-in limiter, an 
internal chime, phantom power, MOH output, and extensive patching.  The 
amplifier includes an output transformer, and provides rated power into direct 
or distributed speaker systems.  The MXA Series carries a five-year warranty. 
 
MXA Series features include: 

  integrated mixer, power amplifier, and output transformer 

  six electronically balanced microphone/line input channels 

  channel 1 selectable for 600 ohm transformer tel input 

  rear panel trim & peak indicator on each input channel 

  +48 Volt phantom power selectable on each input channel 

  automatic muting of selected channels (-20dB or -80dB) 

  automatic muting triggered by selected priority channels 

  manual muting of selected channels (-20dB or -80dB) 

  manual muting triggered from remote contact closures 

  remote control of master level via rear panel terminals 

  integral output limiter with rear panel threshold control 

  recessed tone controls plus rear panel low-cut filter switch 

  patch points for signal processing and systems interconnect 

  Music On Hold output with independent level, from input 6 

  35, 75, 150, or 300 watts into direct or distributed systems 

  front panel indicators for power, signal, peak, temp, & fault 

  internal pre-announcement chime tone with level control 

  input/output connections provided on barrier strip terminals 

  covered by Biamp Systems' five-year warranty 

  

CE

 marked and 

UL

 / 

C-UL

 listed 

 

Summary of Contents for MXA Series

Page 1: ...htning storms or when unused for long periods of time 13 Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as power supply co...

Page 2: ...29Aug07...

Page 3: ...ophone line input channels channel 1 selectable for 600 ohm transformer tel input rear panel trim peak indicator on each input channel 48 Volt phantom power selectable on each input channel automatic...

Page 4: ...line tel BIAMP SYSTEMS 120V F U S E F U S E O phantom pwr priority auto mute manual mute 80dB on on on on 20dB phantom pwr priority auto mute manual mute 80dB on on on on 20dB phantom pwr priority au...

Page 5: ...d as cut only This also precludes boosting of the Bass control see above in these applications DIP Switches The five DIP switches above each input are used to assign specific functions to those indivi...

Page 6: ...utputs from the amplifier From the factory a jumper wire is installed from the 4 terminal direct output to the xfmr input terminal For transformer xfmr output connect speaker negative to the com termi...

Page 7: ...al screws for the 100 volt tap and Com connections 4 Strip 0 25 6 4mm of insulation from each lead 5 Slide one piece of the supplied heat shrink tubing on to each wire 6 Crimp the ring lug terminals o...

Page 8: ...range Tone Controls Treble Bass High Pass Filter Power Consumption MXA35 MXA75 MXA150 MXA300 Dimensions all models height 2 rack spaces width depth Weight MXA35 MXA75 MXA150 MXA300 Compliance 35 watt...

Page 9: ...7 BLOCK DIAGRAM...

Page 10: ...epairs or installed in any manner that does not comply with BIAMP Systems recommendations 4 Electro mechanical fans electrolytic capacitors and normal wear and tear of items such as paint knobs handle...

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