RobHayes
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Registered: 6th Sep 03
Location: Lincolnshire
User status: Offline
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hi guys, help desperatly needed. i got an alpine MRD-M500 digital amp, and it cuts off when u turn it up, bringing up the error code E-3 which, according to the manual, means over current.
what could be causing this, a mate has suggested it could be a bad earth so i changed it to a different earthing point and it still does it. might try replacing the power lead with a thicker one, would this help?
any help would be appreciated
rob
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kev_corsa
Member
Registered: 7th Nov 02
Location: Newport, Uni in Bristol
User status: Offline
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check to see if your output terminals are shorting somewhere
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RobHayes
Member
Registered: 6th Sep 03
Location: Lincolnshire
User status: Offline
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well i got an alpine 10" dual voice coil sub, but the amp only has 1 output channel so i put 2 wires into each of the terminals to run the 2 voice coils in parallel. could this be why?? i followed the wiring diagrams on the instructions 
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Richie
Member
Registered: 3rd Dec 02
Location: Newport, Wales
User status: Offline
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You should wire it like this mate:
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RobHayes
Member
Registered: 6th Sep 03
Location: Lincolnshire
User status: Offline
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thats kinda how it is, but instead of having the junction between the 2 wires on the sub, i got them connected before that in a seperate connection box thing. does this make a difference and should i change it to like the picture?
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Richie
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Registered: 3rd Dec 02
Location: Newport, Wales
User status: Offline
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Try wiring it up like it is in the picture bud.
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Richie
Member
Registered: 3rd Dec 02
Location: Newport, Wales
User status: Offline
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hang on bud, did you get the dual 4 ohm or the dual 2 ohm version of the 10 inch sub u got?
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RobHayes
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Registered: 6th Sep 03
Location: Lincolnshire
User status: Offline
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not sure, its the 1042D, which i think is the 2ohm? i think i've just clicked as to the problem, with the amp giving out 4ohms or summat like that :S
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kev_corsa
Member
Registered: 7th Nov 02
Location: Newport, Uni in Bristol
User status: Offline
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dual 4 ohm and the digital amps can drive into a 2ohm load so u should b ok with that dude
[Edited on 12-09-2004 by kev_corsa]
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RobHayes
Member
Registered: 6th Sep 03
Location: Lincolnshire
User status: Offline
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i got it sorted. cos i got dual 2ohm sub, when they are wired in parallel, they are trying to draw 1ohm out of the amp which it cant do and therefore cuts off.
so i wired them in series til i can afford the dual 4ohm 
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Richie
Member
Registered: 3rd Dec 02
Location: Newport, Wales
User status: Offline
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or just buy another dual 2 ohm sub, and have two subs 
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RobHayes
Member
Registered: 6th Sep 03
Location: Lincolnshire
User status: Offline
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could do, but that would mean a whole new boot install and i like the one i've just done
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Richie
Member
Registered: 3rd Dec 02
Location: Newport, Wales
User status: Offline
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booger , cant you send the sub you've already got back and say u accidentally bought the wrong one? Ur running it at half power
[Edited on 14-09-2004 by Richie]
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RobHayes
Member
Registered: 6th Sep 03
Location: Lincolnshire
User status: Offline
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could do but not 100% sure on the reciept location, and i've had it a month now. altho i might be able to explain the situation and maybe get them swapped. il try. also get pics of my install up when i get it fully finished
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