Question about Kenwood KAC-X401M Car Audio Amplifier

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Power light keeps on blinking on and off. when ground is disconnected light stops but subs still arent playin

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A speaker cable may be short-circuited.
• A speaker output may be in contact with
the ground.
• The temperature of the internal parts may
be higher than 120°C (248°F)
• The fuse of this unit may be blown.
• The unit may be malfunctioning and
sending DC signal to the speaker output.
• The sigma servo connection may be
erroneous.

Posted on Feb 09, 2011

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1 Answer

How to fix blown sub (replace fuses etc)...? stop protective light illuminitating?


The first thing to try is to disconnect the sub and all speakers from the amp's output block. The only things that you need connected to the amp are the 12V power, the ground wire, and the remote wire to turn it on. If the protection light comes on with only these three wires connected - your amp has been damaged internally and will either need to be repaired or replaced.

Jul 27, 2013 | Car Audio & Video

1 Answer

My amp keeps going into some safe mode and red light blinks and stops base to my sub. I have it hooked up to 1 15.4 Orion HCCA.


The "safe mode" on your amp usually kicks in for two reasons - the ohm load on the sub is too low for the amp (presenting a "short" to the amp), or it's going into thermal protection because the amp is too hot. From your description, it sounds like there's a short in the wire, the sub's ohm load is too low, or the sub is partially blown.

If you have another sub or speaker, connect it to the amp's output and see if the amp still goes into protection mode. If the amp goes into protection with a known-good speaker, then there may be something wrong with the amp's power supplies. If the amp works properly with another speaker or sub, then I would check the sub that's causing it to short out.

You may also want to check whether or not the amp is over heating by just touching the amp when it goes into protection. If it's just warm, that should be ok - if it's hot, then it might be working too hard. In this case, you may need to check the input voltage (12-14VDC) and the size of the power and ground cables. If your ground isn't properly connected, it can cause weird problems like over heating, shorts, erratic behavior, etc...

Mar 04, 2010 | Orion HCCA-D5000 Car Audio Amplifier

2 Answers

Red light is on and subs won't play all the wires are connected correctly it all of a sudden just stopped working one day idk y


sounds like the amp is in protection mode. try disconnecting the subs and see it the light changes to green. if it does then the subs are your problem. if the light was allways red while it was working then the subs may be disconnected inside the box or have gone bad. try using a diffrent speaker and connect to the amp.

Feb 06, 2010 | Audiovox Car Audio & Video

1 Answer

Gm 5400 pioneer t amp power light blinking nothing coming through sub also amp gets very hot


I had the problem of blinking light when I was first installing the amp. It was my first install, but after trouble shooting, I found my amp was going into safe mode, because of an inconsistent current- my ground connection was not very good. After sanding down the contact areas on the ground, and posotive connection to the battery, the amp worked and sounds very nice. It does get a little hot, keep it well vented.

Jul 11, 2009 | Pioneer Audio Players & Recorders

1 Answer

Amp Issues


1800W peak output at 2 ohms
975W peak output at 4 ohms
600W RMS (continuous) at 2 ohms
325W RMS (continuous) at 4 ohms
Variable LP crossover adjustable 35-250Hz
4 AWG power/ground inputs and RCA pass through
Low-pass filter
Bass boost 0-18dB adjustable remote punch bass EQ
Signal-to-noise ratio: >80dB
Line-level input


It is going into protect mode for a reason.
Disconnect the subs and turn everything on again. If the light comes on, the problem is internal and will need servicing by a technician.

Dec 22, 2008 | Ultra Linear UL-2200D Car Audio Amplifier

1 Answer

Subs not hitting


remote wire turning on amplifier?
Ground for amplifier?
Gain improperly set?
Radio output crossed over above tuning freq. of enclosure?
Just suggestions. Not much info to go by.

Dec 15, 2008 | Jensen BP212 Car Subwoofer

1 Answer

Quick question, amp problem


make sure you ground wires arent shared, meaning run each ground wire from each amp to its own grounding point

Sep 08, 2008 | Rockford Fosgate P3001 Car Audio Amplifier

2 Answers

Power


Have you checked the on-board fuses?

Did you confirm (with a multimeter) that you have voltage on the B+ and remote terminals of the amplifier?

Did you have the black meter lead on the ground terminal of the amp when you checked the voltage?

Jul 18, 2008 | Sony Xplod XM-554ZR Car Audio Amplifier

1 Answer

Directed audio 800a amp the protection light keeps blinking


1. Check your grounds. (including grounds for your stereo)

2. Check to make sure the power cable you connected to your car battery is properly connected, and not coming into contact with anything metal.

3. Make sure you are using proper fuses.

4. Check your connection from your stereo to your amp, and your amp to your subs.

Jul 18, 2008 | Earthquake Sound XTREME 900W.5 Car Audio...

4 Answers

Led light keeps flashing on my phoenix gold amp


Disconnect all speaker connections and rca cables. Leave power, ground and remote wires intact. Try turning on again. If you still have a protection light your amp is faulty. Hopefully you have warranty . Remember to disconnect all power including ground for about to 1/2 hour to discharge capacitors. You might get lucky and get a reset. .A thumbs up would be greatly appreciated if this answer is helpful to you. led-light-keeps-flashing-phoenix-gold-zb4bomd1rt4qms0dqd12kkt2-3-0.jpg

Aug 07, 2007 | Phoenix Gold Xenon-600.1 Car Audio...

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