View Full Version : Amp Protections on!!!
pintorulz
15-09-2005, 07:30 PM
i went out and bought a cheap ass 2 ch amp. I hooked up the sub to the 2 ch amp and it worked fine.. i tested the amp witht he front slipts and the protection came on.... I dont know what the problem is??? I have a 4 ch vnet amp series 450 and the front slits works fine with those but when i hooked it up wo the audiobank avantgrade 23dxi the protection came on??? any ideas what could be wrong with it??? the speckers are pioneer pro series 160 r splits...speackers are rated at 70 watts rms and the amps 100 watts rms and i had the pass at full
ICACHA
16-09-2005, 12:15 AM
speaker cable might be shorting, sad to say this but the avalache might have better protection than the vnet. only testing will determine if this is the case thou...
pintorulz
16-09-2005, 10:54 AM
do i have to change the speaker cable???
destrukshn
16-09-2005, 12:49 PM
most amps don't have protection mode for the speakers.
maybe check your earths, fuses, anythign related to power.
there are only a few amps that i know of that go into protection mode if a speaker cable is loose etc, and they're quite expensive, and usually digital.
pintorulz
16-09-2005, 05:23 PM
i hooked up my rear speackers to the amp that had protection on and it worked just fine... i remember when i was hooking up the front splits we ran out of the wire so got thing where u screw on the wires togather to extend it was just wondering that was the reason there could be a short in the system?? and such the protection being on
2DR33M
17-09-2005, 04:12 PM
aslong you you have a currnet runnign thru the speaker cable they will work, the power cut off has nothing to do with signal going to the speakers from the HU its all about power going to the amp itself.... if you have a cheap ass amp (eg, says its 600wrms) the amp more likely has 150wrms total, so if you try to run something off it that needs a fair amount of power, crank up the volume then the 'protection' comes on to stop the increase of power that the amp actually cant handle, nor can it distribute.
i hope that helps ya dude ;)
good luck
tim...
ICACHA
22-09-2005, 12:15 AM
So if you short out your battery + to ground you should still be able to start your car if there is current running through the wires? hahahahahahahahaha
TO THE ORIGINAL POSTER:
Buy a cheap multimeter from DickSmith or JayCar, one that has continuity test on it.
Now with one of the probes from the multimeter you attach or touch GROUND with it the other side gets put to the speaker cable (amp side and YES you have to disconnect them from the amp, they can't be connected) and if the multimeter goes BEEP then you have a short to GROUND. It might be easier to run a new cable than it is to find where the short is, up to you anyway.
Also make sure that your GROUND wire to the amp is terminated properly and that were it is grounded you have minimal if any resistance to another ground point preferably the battery negative post if you could be bothered to test it :)
DO NOT ground your amp to seat bolts or seat belt bolts, this is ILLEGAL!!! You are not permitted by law to alter any saftey feature of the car without an engineer certifying it.
Have fun, hope the info. I have just given is enough for you to chase the fault...
2DR33M
22-09-2005, 09:32 AM
i never said anything about a short from the battery, i was talking about the speakers being wired up, and hte fact that they can be as dodgy as you want and you will still get a afaint signal to the speakers.... i was not talking about the battery at all
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