Infinity 475A Car Audio Amplifier Frequently Asked Questions

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Troubleshooting and Support

my amp keeps going in and out of protect mode

my amp keeps going in and out of protect mode every few seconds it cuts off and then it will cut back on and so forth

1 Solution

i installed a 475a to my door speakers and when i

i installed a 475a to my door speakers and when i turn the power up on the amp my speakers make loud popping noise any idea on wat it could...

1 Solution

i just bought a 98 concorde lxi and no sound

i just bought a 98 concorde lxi and no sound coming out of the speakers, radio comes on and shows channels just no sounds

1 Solution

sound loss

Hi, I have a Alpine CDA9856 hu rf cpapacitor feeding a Infinity 475a for four speakers. In addition a RF 550 punch driving two 10' dual coil...

1 Solution

infinity 475a amplifier makes a high tone

my infinity amp makes a high ringing only when the car is on. if i listen 2 it in accesory moge of my car it goes away but when the car is...

1 Solution

Crossover issues?

I have a set of JL components in the front of my vehicle. Recently I installed a new amp and fixed some shorted out speaker wire. With the...

1 Solution

bose amlifier

I need to know what color wire is the power wire and what voltage it is going to the bose amp in my infinity 2005 g35 coupe i would like to...

1 Solution

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