amplifier power protection mode

**thecommiser** · 03-07-2005, 05:58 AM

So my amp has this crazy power protection mode, that means if i crank it goes into this mode, and wont come out til its turned off and on again (meaning sometimes that the computer turns off in the time it takes for the amp to come back on) is this because of a bad earth??? if i figure out the header for my m1-atx, will it survive cranks????

amp = Mutant NW280SP...
car = Clio 1.2 N reg
PC = m1-atx power supply

**xdjxklusivex** · 03-07-2005, 01:44 PM

yup its because of bad ground dont make your ground more then 6 to 12 inchs and if you have to then use a dist block

**RedGTiVR6** · 03-07-2005, 07:39 PM

when you say

if i figure out the header for my m1-atx, will it survive cranks????

are you saying that you aren't sure how the pin goes on the M1 for theamp turn on?

if that's the case, then you just need to put a lead on the one pin that's closest to the caps on the PSU....that's the positive side of the amp turn on lead. if you use the jumpers that they have provided (at least if they are the same as the ones that they sent me) then you will fry it...

as for the amp, what are you running it at as far as your ohm load? is it a sub amp or a mid and highs amp? if you are trying to run it at an ohm load that it's not designed for it will cut out on you.

something else that could be happening is that your amp isn't able to keep up with the needs of your speakers....if that's the case then you are overworking your amplifier and.....well that's just bad in more ways than one...lol

**thecommiser** · 03-08-2005, 12:59 PM

well the amp is rated at 2*80W and ive got 2*30W 6*9's 3 ways on it, so i dont think im over powering it

..... i only recived 5 leads with my m1atx, the one for the switch, the 3 for power and IGN connection, and the PSU/HDD connection cable.... was relativly miffed about that, ive got to go and find summit to use as a cable for it... i threw out all my old cases grrr

anyways, it only ever seems to die when i stall, but the PC stays on, i dont get that bit..... its running off the same set of cables more or less.....

**RedGTiVR6** · 03-08-2005, 01:15 PM

wait, are you saying that the amp only shuts off when your car stalls? or......

**thecommiser** · 03-09-2005, 05:37 AM

it goes into power protection mode when i stall and start the engine.... then i have to flick the HU on and off a cpl of times before it will come out and start amplifying again....

so
1) Start car -> Amp & PC come on
2) Drive car -> Amp & PC work fine
3) Stall and re crank car -> Amp goes into protection mode PC Stays On
4) Turn HU off and on -> Amp can either come on or stay off.... do it a few times and it comes back on.....

well theres the stages, hope that makes it clearer....

**dave2** · 03-09-2005, 05:45 AM

aha. you mixed two questions into one... You are sucking the voltage to the amp with the cranking. Don't do that :P Actually, put something in between them. Put a capacitor inline to the amp, that might hold the amp over until the car is done. you probably have a bad battery or starter, check the wiring to them. Make sure the battery and starter have good thick wire on all points, and that the engine ground is good. When the voltage is going low enough to turn off your amp, you have another problem.
Hook up a multimeter to the battery and check the voltage when you crank, prolly less than 10.

**thecommiser** · 03-09-2005, 06:30 AM

but the PC stays on, so it cant be that, cos if it was such a low voltage drop, the PC would turn die.....

**RedGTiVR6** · 03-09-2005, 08:30 AM

no, the m1 provides a stable voltage output to the computer, your amplifier is hooked up directly to the battery and doesn't have a stable voltage input.....I'll go with what dave2 said...

and I'll ask why are you stalling all the time? just learning to drive a standard or something??

**thecommiser** · 03-09-2005, 09:06 AM

nah cos im a 17 yr old that is abit too eager at traffic lights lol.... it doesnt happen that often, just a pain in the arse when it does happen....

so the problems that my starter/battery is shagged???

i dont get it though, it survives crank the first time i crank the engine....