Question about Infinity 475A Car Audio Amplifier

1 Answer

Protect Mode Whenever it's cold my amp stays in protect mode for a while until my car heats up. It's an 06 taurus. This didn't happen until the weather got cold. It hasn't left protect mode for a few days. I know amps perform better in the cold which is why I'm confused. Maybe it's possible that the car is drawing too much power to heat the car, not leaving enough for the amp. It's not a huge amp though so I don't see why this would happen. I asked a Best Buy installer and he said he hadn't seen the problem in 10 years of installation. Any ideas?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 1,139 Answers

Hello,

first I would advise you to tighten all of your ground and power connections. Then I would suggest that you expose the circuit board and start the amplifier warm up process, once the amp comes on I would use freeze spray to cool down various components in an attempt to find the component which has become thermally sensitive. Once you find the component I would suggest replacing it and the putting the cover back on the unit.

I hope this helps,

Thank you,

Shuttle83

http://www.electron-age-technologies-llc.com

Posted on Dec 09, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

ZX 1000.1 amp stays in protection mode


It is normal for them to go into the protect mode, If the speakers are not hooked up to it,

Nov 09, 2012 | Kicker Car Amplifiers

1 Answer

Lightning Audio b2.3000.4 is in protect mode. i removed all speaks and conected the amp directly to the battery and it still stays in protect mode. what can i do to fix this problem?


  • Only a select few things can cause protect mode with the battery only connected.
  • An installation issue. Check the Power, Ground and Remote wires. Make sure non are shorting from one terminal to the other.
  • It is still overheated and has not had time to cool down from being in thermal protect mode.
  • The amp itself is touching metal. You always want something non conductive between the amp and where it is mounted, this includes the screws being used to anchor the amp. They should never touch the metal in the car either.
  • The final thing that can cause an amp to go into protect mode while only hooked to the battery is the amp itself is malfunctioning and or defective. You can try opening the amp and look for any black spots on the circuit board where an electrical component might have smoked up or blown and replace that part.

Regards, Tony

May 21, 2011 | Lightning Audio B2.300.4 Car Audio...

1 Answer

I have a bamf 5500 series and the amp is on and working but when i turn up the volume the amp will go into protect mode and stay there untill i turn the volume back down then the amp comes out of protect...


you probably have a blown sub(s) that short out when the volume is turned up. it would be a good idea to find out which one(s) is bad and replace it. sooner or later it may make the amp go bad if not replaced or removed.

Jan 06, 2011 | Power Acoustik BAMF5500/1D Car Amp

2 Answers

Its in protect mode and wont go back to normal


disconnect everything except the power, remote, and ground. turn off then on. if it goes into protect mode then there's a posibility that the amp if fried. check all the speaker inputs and outputs to make sure that there are no stray wires shorting out. if it stays on then you may have a short on a speaker wire or an auxilary input wire. plug each one in one at a time until it goes into protect mode, then that's the shorted wire or it could be a shorted speaker.

Aug 09, 2010 | Nitro BMW-486 Car Audio Amplifier

1 Answer

My 450 watt fusion amp is now in ''protect mode''. how can i fix this?


Start by completely turning off the power to it and anything connected to it. Turn all levels down to there lowest volume settings. Check to be sure your speakers are not shorted. Be sure the power voltage is correct. Turn on each of the items, the amp being last. That probably will resolve the problem but I am not that familiar with the unit just trying to help. Most units have stay in protect mode until I cycle the power. Typically they monitor the speaker current hence a short would cause almost an instant protect fault.
Good Luck,
Gilshultz

Dec 01, 2009 | Car Amplifiers

1 Answer

Light


The red light indicates that your amplifier is in protect mode. Amps go into this mode if there is something wrong with the setup of the system to prevent fatal damage to the amplifier circuitry. This is bad thing since the amplifier will not function until the problem is solve and it can remove itself from protection mode.

Amplifiers can go into protect mode for many reasons but one of the most common is incorrect mounting. Is your amp sitting on the metal of your vehicle? Is it bolted down and screwed into the metal of the vehicle or your seat? The amp should never be touching any sort of metal. Only the ground should touching the metal of your vehicle.

Speaking of grounds, many people often neglect proper grounding which can cause an amp to go into protect mode. Do you have a solid ground? Is the wire less than 3 feet long and directly connected to a non-painted metal part of your vehicle? Is the ground wire the same gauge as your power wire?

These are just a few reasons why an amp can go into protect mode. You can find more information here. Or simply google for why your amp is in protect mode.

Aug 06, 2009 | MTX Thunder 81000D Car Audio Amplifier

2 Answers

Lanzar 800 watt amp protect mode stays on


protect mode usaully means that something has disrupted the power of feed lines to the subwoofer/speakers possibly fuse is blown in amp or amp is blown in which we hope not. see if you have a warrenty if blown and send back or bring it to where you purchased it from.

Aug 01, 2009 | Lanzar VIBE266 Car Audio Amplifier

1 Answer

Power light turns from green to red protect mode and then there is no sound coming from my speakers


there are 2 reasons for it to be going into protect mode 1 is heat 2 is the load on it. if it is going into protect mode soon after it starts there is a problem with the speaker. if it is after it has been on for a while it is that the amp itself is overheating. hope this answers your question

Apr 27, 2009 | SPL Audio Phantom DK2-1000 Car Amp

3 Answers

Why does my amp stay in protect mode?


The most common reason an amplifier goes into or remains in protect mode is shorted output transistors. To eliminate other possible reasons for it to go into protect, read the following page.

Troubleshooting - Amp in Protect Mode

Aug 03, 2008 | DHD NTX-2139 Car Audio Amplifier

1 Answer

Amp going into protect mode


If you set the gain too high on the AMP, at loud volume levels some clipping or distortion of the output signal will occur. Most amps have a Circuit inside that detects this clipping or distortion and applies protection to prevent damage to the speakers and the amp. It would help to know if you are driving the speakers with a Line level output or using the speaker output from your deck. There are many things that can cause an amp to go into protect mode, and knowing a little more about your setup will help to solve the problem.

Nov 07, 2007 | Alpine PDX-4.100 Car Audio Amplifier

Not finding what you are looking for?
Infinity 475A Car Audio Amplifier Logo

206 people viewed this question

Ask a Question

Usually answered in minutes!

Top Infinity Car Amplifiers Experts

xxxxxx xxx

Level 3 Expert

4706 Answers

Tygh Duval
Tygh Duval

Level 2 Expert

290 Answers

Radames Pagan
Radames Pagan

Level 3 Expert

196 Answers

Are you an Infinity Car Amplifier Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...