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9 Volt Battery is preferred and will last around 80 Hours. 

 

The Battery is activated ONLY when the mic is plugged into the pre-amp.  

 

When not using the microphone, disconnect the battery from the pre-amp. 

 

Do not use both phantom power and a battery at the same time. 

 

Ground Lift Switch:     

 

If Experiencing a HUM – lift the ground.   

 

The switch next to the XLR output connector marked ‘L’.  In this mode only, the 9 volt battery MUST BE USED, phantom 

power is disabled. 

Applications:  

The AMT Studio versions are meant to be used either in a studio setting where close micing of an instrument is desired 

or in a professional level setting where the "Sound Engineer" needs / wants control of the microphone.   In a studio setting, the studio models 
are meant to help in capturing the nuances of an acoustic instrument that a stand microphone can not achieve due to placement.  The studio 

systems are meant to double for live and studio applications.

 

Comes With: 

 

AMT Microphone with connector for AP40 Floor Preamp. 

 

AMT AP40 floor preamp with XLR Output 

 

Hard shell protective case 

 

AMT “W”ireless Series Microphone Instructions 

The AMT “W”ireless Microphone Systems allows the player to directly connect an AMT with a Wi5C beltpack free wireless system and Shure or 

Sennheiser belt pack style transmitters / wireless systems.  The “W” series comes wired directly with a 4 pin connector 
to connect directly to any Shure wireless belt pack or if ordered for Sennheiser, the systems come with an 1/8in cable.

 

Applications: 

The AMT LSW - Shure Microphone System is meant 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  problematic  for  the 
double  bass  have  been  addressed.  To  be  able  to  get  the  most  gain  before  feedback  it  uses  a  very  tight  pattern  to  give  a  high  rejection  to 
surrounding noise, at the same time reproducing accurately the subtleties of the bass. As placement is especially important with an instrument 

that has a fine finish and varying dimensions, this microphone's attachment mechanism is designed to secure the mic to the bass in different 
positions taking seconds to attach. This mechanism is fitted with natural soft suede so as not to mark or mar instrument.  

 
Made from aluminum to keep the mass low yet extremely strong, this microphone will remain durable through many years of use.  The flex arm 
is easy to position yet retains it's placement throughout the most active of performances.  The mic has an LED that can be easily seen while 

performing.  This indicates status of a battery or phantom power.   
 

The pre-amp for the microphone is rugged anodized aviation aluminum, which houses the electronics that can be placed on the floor.  This pre-
amp utilizes a circuit that can change EQ, curve, and gain by exchanging EPROM-like chip.  The pre-amp runs off of battery or phantom power.  
The  output  is  terminated  with  a  male  XLR  type  connector  for  balanced  use.    The  mic  is  connected  to  the  pre-amp  by  a  four  pin  locking 

connector. 

 

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...

Page 9: ...9 ...

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