It was hitting a loud note and just cut out. i noticed that the power light blinked off and on and my speakers were moving in and out very slowly in opposite directions. i have a protect light and clip light and power light, and just the power comes on for a second, every five seconds and a bit of sound comes out. help please
Are the speakers that are moving oppositely in the same enclosure with no divider between them? If so (and assuming they were originally wired in phase properly), then one of them may be blown and causing the amp to short and go into thermal protect.
(In theory, with the power-on low-frequency "bump", the speakers should move in the same direction, so moving oppositely, if sharing the same airspace, could mean only one is working).
Unhook all speakers connected to the amp at the amp end, power up the system and see if the amp stays on with all power lights in their normal mode.
You need to confirm that the voltage on the B+ and remote terminals of the amp are remaining at or above 11v. Place the black meter probe on the ground terminal of the amplifier when measuring the voltage. Let me know what you find.
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sounds like ur gains are set to high and is going into protect mode
also what ive seen happen before is the speakers (if mounted in metal shelf or door and arnt bolted down correctly can flex under bass notes and flex the speaker that much the termanls short onto the metal and amp hits protect mode
(rare but worth a look if you think u have elimanted most other things Had a dude come to me when i was working in sydney with this problem )
also could be things like clipping protection , overheat protection ,amp drawing to much current from the alternator
do your lights dim when you hit the bass notes ?
get back to me and im sure we could solve this problem
I would say that your subwoofer Or speaker leads have shorted out...when the bass hits as you say it drives the amp hard but if it is trying to dump power onto a shorted speaker or speaker wires it will blow the output power transistors not to mention other vital components of the power amp...i suggest you test your speaker leads with a Multimeter on the ohm setting before connecting a repaires or another amp.. to make sure there is no short on the leads and that the resistance is around 4 ohms or so depending on how you have your drivers wired...but anything lower than 2 ohms will cook an amp! you can normally pick up a meter from anywhere for around $10..
Hi. Take the input leads out of the amplifier for a start, but leave the power and remote cables connected. See if it still turns on and off. If still faulty, you have probably blown a power transistor inside and the amp is shutting down when the output rises each time. It will almost certainly need looking at. Also make sure you are running into the correct impedance load. If you have hooked up too many speakers you will cause damage.
Check the continuity of the speaker line AT THE AMP. Make sure its not shorted. Also hit up a local audio shop for what is known as a "Z" meter to measure impedance of your speakers and configuration. make sure it is within the spec of the amp. Most nice new amps will check the line before they start to crank out the juice. Start there.
Then consult the manufacturer to see if there is any meaning to the particular sequence of blinks to the lights.
Amps are fairly simple devices. the only intelligence they really put in them nowadays is circuity to make sure it wont commit suicide. It checks proper power feeds, clipping of the input and speaker output impedance along with temperature before it will try and crank out tunes.
Your amplifier is trying to draw too much current. Your battery doesnt have enough power to run the subwoofers. My solution to the problem would be buying a power cap with equal or more power capasity to your current amplifier. The power cap stores a high amount of current so that when your subwoofers hit those low notes that draw a lot of current, instead of taking it directly from your battery, it will use the stored current from the powercap and wont go into protect mode. Also make sure that your connections on the back of the subwoofer arent touching. If you are hitting hard bass notes and the speaker (+) and (-) wires touch, it will short out and go into protect mode. But I dont think this is what your problem is. I am 99% sure if you go with the powercap, it will solve your problem.