My entire system was installed by a person @ tweeter... got 2 12" mtx's, a zx750 kicker amp, pioneer deck... my amp usually functions very well.. recently it has been cutting out my subs and flickering on an off from green to red (protection) ... could the amp be drowning my subs? ... subs are running 900 rms .. amp is 750 wattage.. only had this problem once in the past, but now it is occurring more often... idk what to do
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Re: amp stuck in protection mode, help!!
For 1 the amp is no where close to strong enough for the subs and 2 if the amp is mounted on the box it is vibrating the electronics loose. you always want the amps rms power to be be about 25% more than the speakers rms rating, from the sound of it you are either undriving the amp (clipping) or running the amp at 1 ohm load which is making it burn up. if the amp gets hot (which class d amps should never ever do) then try running just 1 sub. if the problem goes away then you know the amp is not enough for the subs. try a hifonics amp you will be amazed at the quality and power difference. I sell all major brands cheaper than almost anywhere. let me know the exact model of the subs and i can recommend a better amp for you.
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You need to get another amp for your sub. I would say if you want good quality go for MTX because I have had amps from MTX and never had a problem. what you need to know is look at the fuses on the amp if there are 3 of the 25 amp fuses on there then it should push out about 750 watts but on MTX they under clock the amp so it will push about 800 at 14.4 volts for that you will need a 4 gauge wiring kit with a 60 amp fuse in the fuse link. As far as your other amp hook up the speakers and tweeters to that but be sure to tune in down and you would need a 8 gauge wiring kit. I hope this helps you.
When an amplifier shuts the Bass off that means its going into protection mode otherwise it will burn out the outputs. One way is to turn your gains down, Pioneer amps are not the best amps for bass out there, they are more for car speakers, I personally wont use a pioneer amp to run my subwoofers especially if they are hard driven subs like JL , Kicker Solo's and MTX subs. But for now just turn the gains down to 3/4 and that should help u, you can also install a fan to keep your amp cooler, if this never happened before in 5 yrs and now it does then that means your amp is just tired and the inside components are overheating easily, thats common with Pioneer and Sony amps.
Check all your RCA"smake sure they all have output..Then use a fluke metere, or any meter you can get that tests ohms, and measure each speaker..they should all read arround 4. If the outputs from the deck are good, and the speakers measure correctly, then you have got yourself a bad amp.
If the amp is in protect mode, it probably has shorted output transistors. To eliminate other possible problems, do the following.
With your multimeter set to DC volts, the black meter lead on the ground terminal of the amp (not on the point where the ground wire connected to the vehicle) 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 drops below ~11 volts, you need to check the wiring feeding whichever line is dropping too low when the amp goes into protect.
If the voltage is OK, you need to check the speaker wiring and the speaker(s). Try it with a known good speaker if possible to see if the amp works normally.
if you amp is in the PROTECTION MODE its means that there some defective part , like for example the main ICs or TRANSISTORS output might be defective , and thats why its on the PROTECTION MODE , needs to be taken to a expert technician for repair.
recommended maximum for the sub boxes is 1600/800
here is the link to the manual if you need it;
If you really wanted to get the maximum from your subs then a zx750, or possibly a zx1000 would be the ideal choice. Either amp you suggested will work, but you will have more fun with a 750 which should do fine.
Hope this helps :)
if your amplifier has the internal Kicker card dealie "little computer card on the side that you can change out crossover settings and such," Turn off the vehicle, remove this device and make sure the contacts on the card are clean and free from black soot (showing a spark). clean the contacts with a pencil eraser or something hard but soft...
and put the little card back in place, start the car again and see if that helps,
I used to lose one speaker every once in a while with the same amp. I ended up replacing the module with a different one from my dealer and it worked fine (still does and it's been in my car 6 years).
Check that little module.
if this doesnt work, while the car is running and the music is "playing" wiggle the card and see if it works sometimes and not others. Likely is the little module.