Question about DB Drive A460 Car Audio Amplifier

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Amp protection light comes on when raising volume...

I have one db drive amp platinum series connected to two 10" sub db drive speed series when raising the volume the amp goes into protect light cuts out then comes back on what could be happening help please...

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Re: Amp protection light comes on when raising volume...

It sounds like you either have too low of an ohm load or the voltage is dropping at the amplifier's power terminal.

With your multimeter set to DC volts, the black meter lead on the ground terminal of the amp and the head unit on (so the amp will have remote voltage applied), touch the red lead alternately to the B+ and remote terminals of the amp. If the voltage is below ~11 volts, you need to check the wiring feeding whichever line is too low.

If the voltage remains near or above 12v, disconnect one speaker and see if it shuts down. If it doesn't, disconnect that speaker and connect the other speaker. If it only shuts down with both speakers connected and the voltage is staying above 12v, the ohm load is probably too low and you'll need to rewire the speakers.

Posted on Dec 31, 2007

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My DB Drive pd 1200.1 amp shuts off when the volume is raised. What is happening and what should I do?

The vibration from the bass is cutting off the amp. it is a loose wire causing this issue. you can also get a stabilizer that will stop the vibrations from causing this issue.

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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.

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Legacy LA770 worked for 2 10" subs but not for 1 12" sub

if the protect light is still on with all speakers disconected then you have overloaded the internal ic and blown it beyound its ability to reset


Jun 25, 2010 | Legacy Audio LA770 Car Audio Amplifier

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I have a 500/1 Slash series amplifier hooked up to a pair of 12" infinity Kappa perfects. I have a factory dash unit still in a 2007 Lincoln MKZ so im using the converter that converts the speaker wire to...

What may of happened if that you got the lacquer finish on the electromagnetic wire to heat up and come apart. At low volume they will still have an electric connection. Because the wire physically came off from the inner housing of the voice coil it is in contact with the side wall of the speaker magnet and is proned to causing a short between coil sets. Your probably running subs with a 4 ohm impedance and when your coils short it acts more like a 2 or 1 ohm speaker. This is similar to whats called a dead short. Since the Independence is dropped to 2 or 1 ohm it is the resistance equivalent of having 2 or 4 subs attached to your amplifier which caused the final transistor bridge to heat up and it can get hot almost instantly. Check your amps outputs individually on a single speaker that you know works perfectly. If your amp does not trip the thermal protection you most likely cooked a speaker beyond usable condition.

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1 Answer

Amp burned out but fuses still good?

this is caused by inproper wiring from the speakers/subs to the amplifier.. an amp will still put out power to subs and speakers when it's wired improperly but it won't last for very long doing it... 6 months is longer than usual....

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Amp is on, but sub wont produce any bass

Make sure the subwoofer is set to low frequency, make sure subwoofer and bass are enabled on the headdeck. Make sure the gain is turned up on the amp, make sure the rcas haven't come out of the back of the head deck.

Aug 04, 2009 | JBL GTO14001 Car Amp

2 Answers

When i turn the volume up high enough one or both fuses on the amp will blow.

This most likely means your amp is blown. All you can do is make sure your battery and ground wires are tight. Also double check to make sure + and - Speaker terminals are going to proper terminals on amplifier. Thanks

Jun 08, 2009 | Pioneer GM-5100T Car Audio Amplifier

1 Answer

Visonik amp problem... amp goes in and out of protection

Check for intermittent shorts on the speaker leads.

Turn down the volume control on your head unit while operating the amp, you could be over driving the amp.

Remove Speaker leads and reset the amplifier. IF the protection LED still comes on amplifier is faulty.

Below is the link to put in a help request with the manufacture for repair.

Mar 25, 2009 | Visonik V408XT 250W x 2 Car Amp Car Audio...

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Amp is shutting off after 10 min of driving!! please help!!

Does it happen at all volume levels?
What is the gain setting on the sub amp?
Have you checked for 12V @ remote turn on after problem occurs?
Sounds as if the remote turn on relay inside the amplifier is losing signal, or has become damaged. If the protection light does not light up, the problem is not thermal, shorting, or high/low voltage.
The amplifier is in need of repair. This is not an end-user fix. Looking at about $50 to repair.

Thanks for using FixYa- a FixYa rating is appreciated!!

Feb 18, 2009 | Profile BAJA HA700M Car Audio Amplifier

2 Answers

Amp cuts off

You may have a problem with the power source feeding the amp. You need to check the voltage across the amplifier's B+ and ground terminals when the amp is playing/cutting off. If it's dropping below ~11 volts, you need to determine why it's dropping so low.

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