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ground and positive

Old 11-01-2006, 07:21 AM
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ground and positive

hey guys i just wanted to share my experience
i recently upgraded from mrd-m605([email protected]) to mrd-m1005([email protected]) running 2x10inch alpine type R's (300WRMS)
once i installed the new amp i didnt get much increase in performance and i didnt understand why. my lights would flicker and voltage would drop down to 11.5V WITH a 2farad cap.
That kind of upset me so i went over my wires and nioticed that my ground and positive were way longer then needed to be and only 8gage
i put in way shorter 4gage wire for ground AND positive and holy crap its so loud now
i had no idea that wires matter that much

i didnt get a chance to test it 100% yet to see what my voltage goes down to since i blew a fuse right after by beign stupid lol but i will after work once I stop at AudioVideo

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Old 11-01-2006, 07:32 AM
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it all comes down to the weakest link with this hobby... if your amp can't get the power it needs, it can't make the power you need / want it to. glad it worked out for you, I had a small 8 AWG kit in when I got my car, and quickly went right onto 0 AWG so that I would always be covered to the extent of what the max I would ever run in the car would be...

regards, Mark
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Old 11-01-2006, 01:44 PM
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Originally Posted by eg0r
hey guys i just wanted to share my experience
i recently upgraded from mrd-m605([email protected]) to mrd-m1005([email protected]) running 2x10inch alpine type R's (300WRMS)
once i installed the new amp i didnt get much increase in performance and i didnt understand why. my lights would flicker and voltage would drop down to 11.5V WITH a 2farad cap.
That kind of upset me so i went over my wires and nioticed that my ground and positive were way longer then needed to be and only 8gage
i put in way shorter 4gage wire for ground AND positive and holy crap its so loud now
i had no idea that wires matter that much

i didnt get a chance to test it 100% yet to see what my voltage goes down to since i blew a fuse right after by beign stupid lol but i will after work once I stop at AudioVideo

Reality...assuming everything else is equal...you will only see about a 2dB increase in SPL anyway...that is assuming you are playing full power and you car can supply the 1000 watt amp with enough current.
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Old 11-02-2006, 05:22 AM
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Originally Posted by zoomer
Reality...assuming everything else is equal...you will only see about a 2dB increase in SPL anyway...that is assuming you are playing full power and you car can supply the 1000 watt amp with enough current.
Doubling cone area, and power is only going to gain you about 3db, and people seem to think that is worth it.

Mark
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Old 11-02-2006, 11:09 AM
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you guys talk as if a 2 or 3db gain is nothing. Trust me when I tell you this when you're up in the 150's a gain of 2 or 3db's is a miracle. I hit 145 with 2 jl w6 12' in a ported box off of 100rms and jl's are NOT spl subs. Trust me when I tell you that 2 to 3dbs is i very big jump for anyone. Ask the the big guys like prolifik, lessy, etc and they'll tell ya the same thing.
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Old 11-03-2006, 10:44 AM
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yeah dude
im not super noob but i dont have experience listening to competition subs and systems
so the performance i got was major
i cant wait to do 3 wire upgrade
see what that does.

also quick question. some cars have rubber strips from the chassy going and touching the road while you are driving
is that something worth doing?

Last edited by eg0r; 11-03-2006 at 10:47 AM.
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Old 11-03-2006, 11:27 AM
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Originally Posted by eg0r
also quick question. some cars have rubber strips from the chassy going and touching the road while you are driving
is that something worth doing?

I always thought those were to combat road sickness!
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Old 11-03-2006, 12:03 PM
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Well if you've ever been shocked getting in or out of your car I'd recommend getting one, as I believe they are there to ground the car so that you don't.
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Old 11-03-2006, 12:12 PM
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yeah i do get shocked (now that i got 400W extra in the circuit) so i shall get thouse thingies + 3 wire upgrade

any1 know the correct name for thouse devices?
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Old 11-10-2006, 03:32 PM
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Ford Fusion amp install

I was having the same problem and try that but i have the same problem still, where did you ground your wire? thanks...
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