My system was working fine until one day I noticed the lack of bass and realized that my amp was stuck in protect mode but the green power led is lit as well...ive changed the amps fuse and the line fuse but neither made a difference...ive checked the ground as well and its fine...what could be the issue?
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I just got done with 10 others like this with the same problem, just look at some of my other solutions to see what you will be doing. Basically you need to upgrade your entire charging system to run these amps, You guys are not even considering the power draw that it takes to keep these things running at full power! You need to plan out your system way before you start to buy things to make sure that you will only have to install it once and do it correctly. It all starts with the power available from your alternator. You will have about 40 to 60 amps of left over current to use from a stock alt after it has to charge the battery and power the car while driving. That means you can have a head unit drawing 15 amps and a sub amp that will draw 35 to 40 amps before you will need to upgrade your entire charging system. Failure to do this will result in Batteries lasting 1 year a new alt every summer, your amps will burn up the insides a few times before you realize the importance of this all.
YOU NEED NO CHACK THE GROUND CABLE SOMETIMES WITH THE SAME POWER THAT THE AMP NEED START TO BURN THE CABLES AND IF THE GAUGE OF THE CABLE IS NOT THE CORRECT CAUSES THAT PROBLEM TRY TO PUT 2 GROUND CABLES (GREY) IN DIFERENT PLACES AND IT MUST WORK!
if AMP turns on and no sound , check the inernal fuses that protect the output from overload , in most cases this fuses act like a cicuit breaker , they set back on again in a few seconds. hope this helps
probably your power is too short, increase your gauge wire, and your ground wire of the amplifier has to be shortly as possible, and the positive has to be enough to support peak power, you can also put a big capacitor on the positive wire to give some more power while the bass peak.
If the amp still goes into protect mode, the easiest thing to do is disconnect the RCA cables from the amp and see if still goes into protect mode (after turning off/on). If it does, the issue lies in the amp or the wiring to/from the amp (most likely case). Check to make sure no speaker wires came loose and touched +12V or ground (car body). From the sound of it, my guess is something internal to the amp died and will need repair.
Set your Filter Switch to LPF. Turn the Bass Gain/ level all the way down temporarily. Set your Crossover to below 100HZ. Then Turn on the system with a Bass test sound. Turn up your bass Gain/level until you get distortion. Then turn it back till you just get the distortion out. Then do not warn everyone that you will De-nad them if they touch your settings.