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Under warranty regulations, if a product has been damaged from miss-use such as: 

Damage resulting from accident, misuse, abuse or neglect. 

Failure to follow instructions included with microphone. 

Repair or attempted repair by anyone not authorized by A.M.T. 

Failure to remove battery when storing. 

Cause other than product defects including: lack of skill, competence, or experience of use. 

Damages occurring during any shipment of this product (claims must be presented to carrier). 

Damage to any unit which has been altered, or which the serial number has been defaced, modified, or removed. 

4)

  Most  common  problems  found  to  be  are  over  stressed  goosenecks,  broken  cables,  and  plugs  that  have  been  crushed  or  bent.    These 

problems are NOT covered under warranty BUT in certain cases, if the shipping is taken care of both ways, we will repair it for free.  Due to this 

unique product, which is specialized in the audio field, most components that make up this product are proprietary.  In most cases, the entire 
product must be taken apart to its manufacturing stage in order to rebuild or replace damaged components.  This makes it almost impossible to 

use outside of the USA repair stations.   

AMT  Manual  of  Operation:   

In  choosing  Applied  Microphone  Technology  you  have  not  only  selected  the  best  hand-crafted 

microphone  for  your  specific  application  but  a  company  with  the  finest  in  personalized  technical  support.   We  understand  difficulty  in  the 
decision making process that has critical impact on your performance. 

The intention of the information in this manual is to help you achieve peak performance from your AMT microphone.  Careful reading of the 
technical data and instructions will be helpful in the installation and maintenance of your AMT microphone, and will ensure correct operation 

and maximum musical reproduction. 

AMT microphones represent an innovative method of microphone manufacturing.  AMT does not use an assembly line approach to 
construction; instead each unit is carefully hand assembled by dedicated technicians under laboratory conditions.  This procedure is required 

as many of the microphone components are either too small or too delicate to adapt to mass production techniques.  Without the limitations 
imposed by large scale production, AMT can utilize materials and concepts not attainable with other construction methods.  This concept also 
permits unusual flexibility in design and construction.  As a result some details of AMT microphones may differ slightly from published data 

and specifications.  Ongoing changes to improve performance are introduced whenever advances in technology and research permit.   Our goal 
is to ensure every AMT microphone is at the forefront of current design standards when it leaves our facility.  Keeping the mic clean by wiping 

with a damp rag on the clip and the rubber parts.  Never use us solvents to clean; you may use Armor All on rubber parts occasionally.  Even 
though the mic has a supple, flexible gooseneck, do not excessively bend and never twist.  Never keep in a damp or wet environment. 

BELT PACK: BP40  - Special Order beltpack - 

Open battery compartment on back by sliding pane down (#1).  Put in 9 volt 

battery (not supplied).  Turn volume knob fully counterclockwise until you feel the click. (This ensures the mic is off.)  Plug mic into mini-jack 
(A40, then plug supplied cable into the 1/4 inch jack.  This jack has a built in switch, so remember when the % inch jack is plugged in it turns 

the belt pack on.  LED will illuminate.  

After using always unplug.

 

This belt pack is not only a power source for the mic, but is also a pre-amplifier.  This gives the highest quality performance in 
all applications.   (#5) is the output of this system.  It can be used in both high and low impedance (low impedance cable 

supplied).  For applications such as sound reinforcement and recording systems make sure that the channel of the PA, 
recording console or amplifier (used for the mic) is turned down. 

After you plug your belt pack into the PA or amplifier turn up knob fully on belt pack.  The LED will illuminate on the 
microphone then slowly turn up the PA or amplifier until the volume is at the required level.  Now you can use the volume 

knob on the belt pack to control your volume and turn it on and off.  Never keep 1/4 inch jack plugged in on the belt pack 
when not in use - (it will drain the battery).  Never unplug from amp or PA without turning down the channel. 

The belt pack has been designed for multipurpose uses.  Even though it uses a 1/4 inch phone jack for output, it is still low impedance 

(balanced). 

 

 

Summary of Contents for 97-4C

Page 1: ...is limited to repair of replacement of the product of our option AMT shall not be liable for damages based upon inconvenience loss of use of the product loss of time interrupted operation commercial loss or any other damages whether incidental consequential or otherwise Some states do not allow limitations an implied warrantee lasts and or do not allow the exclusion or limitations of incidental or...

Page 2: ...to mass production techniques Without the limitations imposed by large scale production AMT can utilize materials and concepts not attainable with other construction methods This concept also permits unusual flexibility in design and construction As a result some details of AMT microphones may differ slightly from published data and specifications Ongoing changes to improve performance are introdu...

Page 3: ... should be over the head joint If you have any reservations about placing it directly on the instrument we suggest making a sleeve out of felt All other materials could damage the finish Placement of the longest gooseneck should be over the keys while the shorter should be aimed at the armature not to be in the direct path so as not to pick up wind noise The VS Series Used with VS microphone A low...

Page 4: ...not be able to be turned off Preamp Instructions for Studio Series Microphones S25B Bass S18C Cello M40 Piano M51 Pre amp 1 Works with 9 Volt Battery OR Phantom Power 2 9 Volt Battery is preferred and will last around 80 Hours 3 The Battery is activated ONLY when the mic is plugged into the pre amp 4 When not using the microphone disconnect the battery from the pre amp 5 Do not use both phantom po...

Page 5: ...Phantom power required for use of Inline Preamps Use the ERTS with Banjo Hand Percussion Included with the ERTS 1 AMT ERTS Microphone and special clamp 1 Inline Preamp AMT Studio Series Microphone Instructions The AMT Studio Microphone versions combine the most natural clip on microphone systems on the market with the AMT AP40 floor pre amp The AP40 replaces the stock AMT BP40 belt pack pre amp Th...

Page 6: ...eant to be used by the player that requires a multi channel professional level wireless system This application is a commonly preferred method used by many professional level Sound Engineers as well as sound companies on major tours S25B Condenser Microphone System for Acoustic Bass The S25B is an electret condenser microphone that has been designed for acoustic bass All of the parameters that are...

Page 7: ...haracteristics of the bass microphone S25B with the exception of a slightly wider pattern higher frequencies and smaller size AMT P43S Harp Microphone System The AMT P43S Microphone is attached to a two part clip The clip will fit into the sound holes in the back of almost any harp Simply turn the thumbscrew to loosen the clip slide it over the edge of a sound hole and tighten the thumbscrew again...

Page 8: ...placed in front of or near a speaker that is producing a n amplified signal from that microphone there is a possibility for feedback This is the annoyingly loud high pitched squeal or sometimes the low irritating hum that amplification systems produce all too often It is important that the speaker be positioned so that it is pointing away from the harp as much as possible If you need to hear the s...

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