Old school hifonics amp help

 

Silver Member
Username: Terry6405

Sullivan, IN US

Post Number: 104
Registered: Sep-05
i have a old school atlas VII vari-power 400 watt amp. every time i turn up the volume, it goes into protect mode, how can i fix this? i took it apart and realized how little i really know about car audio. what should i do?
 

Gold Member
Username: James1115

Wilton, Ct

Post Number: 4351
Registered: Dec-04
has it worked in the past? are you sure the install is correct? could be a faulty ground, reversed polarity, power wire hooked up to remote wire, ect need more info.
 

Gold Member
Username: Carguy

Post Number: 5068
Registered: Nov-04
An amp can go into protection mode if over driven or under powered.
For example, the power drops below 11v or you set the gain/level to 1v and send 4v.
 

Silver Member
Username: Terry6405

Sullivan, IN US

Post Number: 106
Registered: Sep-05
it worked fine and i checked all the wires. it hardly takes any power b4 it goes into protect

i think the gain was fine about 2.5--matched with the HU

i just got a new battery and it didnt have enough power to make the alt drag

is it just broke?
 

Silver Member
Username: Terry6405

Sullivan, IN US

Post Number: 108
Registered: Sep-05
i figued it out, reversed polarity, they need to make all speaker wire diferent colors so you can esily tell b/w +&-
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