Question about Fusion FEW12PK Car Subwoofer

1 Answer

Fusion Amp Starts In protected Mode

Everytime I turn my ignition off and back on the amp starts in protected mode. If I take the amp fuse out and back in the LED goes green and everything works until the next time i turn my ignition off.

I have absolutely no idea why it does this. Any help would be greatly appreciated,


Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 4 Answers
Re: Fusion Amp Starts In protected Mode - Fusion FEW12PK Car Subwoofer Car Speakers & Subwoofers

Check remote wire coming from back of radio

Posted on Jan 08, 2008

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

MY soundstream LiL Wonder 4.620 is only going in protection mode

Disconnect all speakers Meter power, remote, ground at amp, if all is good move on, if not check main fuses
Turn amp on; If in protect mode then your amp is toast Turn amp on, if not in protect mode then start reconnecting speakers one by one until your amp goes into protect mode, then you'll know which speaker is bad.

Sep 19, 2011 | Car Speakers & Subwoofers

1 Answer

A boss nxd 3500 1 channel amplifier.what makes the protection mode keep lighting up and then the amp power supply shuts off and then comes back on and it makes a popping noise..baddly defected

A coupld of things that make the protection kick on are these. First is temperature. It is equiped with a thermal detector. So if you amp goes above a preset operating temperature, it will shut off. Also, there is circuitry protection. It will detect fluctuations in voltage or senses an unsafe voltage that will damage the motherboard of the amp. I would check your wiring. Make sure you have a good ground. If you have a multimeter and know how to use it, make sure you have a good ground that way. Also, test your voltage coming from the battery. Just recently ran into a person who have a voltage drop from 12v to 8v, and it shuts his amp down everytime. Just some things to thinkg about. Keep posting results.

Aug 25, 2011 | Car Speakers & Subwoofers

2 Answers

Hello i have a clarion vrx785bt head unit it is stuck on amp protec mode i have tried the headunit in my other automobile is there a bulit in amp in this radio? if so what steps can i take to resolve this...

sounds like the IC amp in the head unit is shorted and the unit is in protect mode.
you would need to send it into clarion for replacement or repair unless you can find a local tech to replace the IC for you and reset the unit

May 03, 2011 | Car Speakers & Subwoofers

2 Answers

How do i get it out of protect mode?

if your in protect mode then it is because of couple things one the ground wire is not properly grounded or two the amp is overheating also if the amp gain is way to high it will throw the amp into protective mode try these see if fixes it

Sep 25, 2010 | Car Speakers & Subwoofers

2 Answers

I have got the Fusion FJL-1211 Class D Amplifier.When i turn the music up the amp switches off and back on until i reduce the volume and it plays fine.

your overloading the amp and its going into protect mode. turn the bass down on the deck or adjust the controls on the amp itself. get lower power rated sub(s) or more powerful amp since you won't be able to push the sub(s) you have with that one since the sub(s) is/are pulling too much power from the amp.

Aug 18, 2010 | Fusion Car Speakers & Subwoofers

1 Answer

My amp will go into protection mode when i turn my truck on, it flashes green and beats once,then turnd protection mode on... whats wrong with it??

im not sure what is wrong but i do know if you keep it hooked to subs it will fry them because that happened to my friends jackhammer amp and 2 12" mtx jackhammers

Mar 10, 2010 | Fusion FEW12PK Car Subwoofer

1 Answer

My subwoofer quit on me and i cant get out any sound. i have a alpine stereo and two amp looking things in the back

I could be a number of things, first of all if the red light on your amp is on when the car is powered up your amp is in protect mode and you either have a bad sub or amp, if your amp does not even turn on you have a fuse blown somewhere

Aug 21, 2009 | Car Speakers & Subwoofers

1 Answer

FE-300D a good amp ?

if its a 2 channel amp you can only run in stereo mode can not bridge amp will get hot

May 23, 2009 | Fusion FEW12PK Car Subwoofer

1 Answer

Subwoofers won't work and they are brand new


I've got a pair of these MTX's subs powered from a Fusion 450 watt 2-channel amp. For the price, they are great. By the way, they are 4-ohm.

My first suspicion would be that something in the first incorrect wiring damaged either the amp or the subs. Can you explain specifically what the "installing the subs incorrectly" means? Was the amp output shorted out at any time or was it operated without a load? Either of these conditions will fry an amp and sometimes, the protection circuitry doesn't work either.

First make sure that your amp is still working. Check both the primary power fuse, usually located near the vehicle battery, and the fuses on both sides of the amp. Make sure that when you turn the system on, the power light comes on steady (blinking is protection mode). Test your subs one at a time on a speaker output.

Mar 29, 2009 | MTX Thunder 4500 T4510-04 Car Subwoofer

2 Answers

Amplifier problem

Check your grounds, and all of your wiring. Does it just shut off or does it blink and go into protection mode?

Dec 01, 2006 | Fusion FEW12PK Car Subwoofer

Not finding what you are looking for?
Fusion FEW12PK Car Subwoofer Logo

Related Topics:

482 people viewed this question

Ask a Question

Usually answered in minutes!

Top Fusion Car Speakers & Subwoofers Experts

Tygh Duval
Tygh Duval

Level 2 Expert

290 Answers

Jose Velazquez
Jose Velazquez

Level 2 Expert

227 Answers


Level 1 Expert

32 Answers

Are you a Fusion Car Speaker and Subwoofer Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides