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INTRODUCTION 

Thank you for your purchase of the ISP Technologies Audio Transient Suppressor.  This 
product provides the user with the comfort of knowing that their speaker system is no 

longer in jeopardy.   The lingering pop noise that is heard when a system is powered 
on/off is a thing of the past.  Simply connect and let the unit do all the work.  
    

 

PRECAUTIONS 

NOTE:  IT  IS  VERY  IMPORTANT  THAT  YOU  READ  THIS  SECTION  TO  PROVIDE 
YEARS OF TROUBLE FREE USE.  THIS UNIT REQUIRES CAREFUL HANDELING. 

 
All warnings on this equipment and in the operation instructions should be adhered to and 
all operating instructions should be followed. 

 
Do  not use  this equipment near  water.   Care  should  be  taken so  that  objects  do not  fall 
onto and liquids are not spilled into the unit through any openings.   

 
The power cord should be unplugged from the outlet when the unit is left unused for a long 
period of time. 

 
DO  NOT  ATTEMPT  TO  SERVICE  THIS  EQUIPMENT.    THIS  EQUIPMENT  SHOULD  BE 
SERVICED  BY  QUALIFIED  SERVICE  PERSONNELL  ONLY.    DO  NOT  MAKE  ANY  INTERNAL 

ADJUSTMENTS  OR  ADDITIONS  TO  THIS  EQUIPMENT  AT  ANY  TIME.    DO  NOT  TAMPER 
WITH INTERNAL ELECTRONIC COMPONENTS AT ANY TIME.  FAILURE TO FOLLOW THESE 
INSTRUCTIONS  WILL  VOID  THE  WARRANTY  OF  THIS  EQUIPMENT,  AND  MAY  CAUSE  A 

SHOCK HAZZARD. 
 

THERMAL CONSIDERATIONS 

 

This system generates heat that must be dissipated in order to maintain reliability and 

insure  the  amplifier  components  stay  within  their  operating  temperature  specs.    To 
accomplish this, the amplifier is mounted onto a heatsink that is vented on the rear of 
the cabinet.  Airflow is forced through the fins via a fan that turns on when needed.  It 
is required that the vents remain free from any obstruction to allow proper ventilation 

to occur.  

  

In addition, the amplifiers are thermally protected internally via a thermal switch, which 
will  attenuate  the  signal  40db  when  the  temperature  exceeds  120

C.    When  the 

temperature drops below a predetermined point, full signal will be restored.  ISP tests 
have shown under extreme conditions that cycling will occur (40 sec. ON, 20 sec. OFF).  

Summary of Contents for Active series

Page 1: ......

Page 2: ...If this warning is ignored a serious electrical shock or death may occur Do not attempt to service this unit No user serviceable parts inside Refer servicing to qualified ISP approved service personnel Never remove or defeat the ground connection on the power cord of this unit Care should be taken to avoid spilling any foreign objects or liquid into this unit Failure to follow these instructions m...

Page 3: ...ENT THIS EQUIPMENT SHOULD BE SERVICED BY QUALIFIED SERVICE PERSONNELL ONLY DO NOT MAKE ANY INTERNAL ADJUSTMENTS OR ADDITIONS TO THIS EQUIPMENT AT ANY TIME DO NOT TAMPER WITH INTERNAL ELECTRONIC COMPONENTS AT ANY TIME FAILURE TO FOLLOW THESE INSTRUCTIONS WILL VOID THE WARRANTY OF THIS EQUIPMENT AND MAY CAUSE A SHOCK HAZZARD THERMAL CONSIDERATIONS This system generates heat that must be dissipated i...

Page 4: ...arge turn on and turn off transients due to an untrained operator power failures accidental removal of the power someone tripping on the power cord or any number of other reasons The end result can be blown speakers and or power amplifiers The stress on power amplifiers and speakers that result from a full level turn on and turn off transient can result in damage since the amplifier is typically r...

Page 5: ... the Audio Transient Suppressor will protect or mute the audio output between the mixer and input of the amplifiers for a period of approximately 4 seconds On power down the system will sense the removal of AC power in the first cycle and will protect or mute the audio path between the mixer and amplifiers before any transient can appear The means that even if there is a power outage the system wi...

Page 6: ...48329 Attn Repair Dept All shipping charges must be fully prepaid ISP will not be responsible for any damages incurred in shipping of any unit Any claim will need to be settled with the shipping company The warranty will be voided if the serial number has been tampered with in any way The warranty card must also be filled out and returned in order to activate the warranty Should you have any quest...

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