[DML] Amplifier mounted on firewall (was Abandon the spare?)
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[DML] Amplifier mounted on firewall (was Abandon the spare?)



I have a Soundstream 244 amplifier, using #8 guage wire for the hot 
and #4 for the ground, both from Lighting audio. The hot is tied 
directly to the battery while I tried moving the ground from the 
battery to other points nearby but no change in the result. The 
input wires are of the unshielded twisted pair type, also from 
Lighting Audio which are supposed to be the latest and greatest in 
noise elimination, I thought.

The noise was twofold: there was a lot of ignition noise which 
produced a "popping" sound in time with the engine, and also 
alternator whine. When I moved the amp to the floor, the poping was 
gone but I still had the whine. Installing a filter on the power 
from David Navone Engineering solved that part of the problem.

One I get the car back together from my AC extravaganza, I might try 
some other things. I bought a set of Magnecor CN25 ignition cables 
which are supposed to help with this problem, but haven't installed 
them yet. I presently have 8.5mm MSD wires on the car with a NOS 
coil.

What brand of amplifier are you using so successfully?

Marty Galbreath
3765



--- In dmcnews@xxxxxxxxxxxxxxx, Soma576@xxxx wrote:
>  
> In a message dated 7/11/2005 10:43:33 P.M. Central Standard Time,  
> marty@xxxx writes:
> 
> Now I  have my ac/heater unit out and have been looking towards 
> moving the amp to  the trunk. The front wall is right there, nice 
and 
> bare and wiring through  it would be easy. The amp is too large to 
> fit beneath the spare as others  have done. So I was wondering how 
> may of you have removed the spare to get  more trunk room? Would 
> carrying a small compressor or Fix-a-flat or both  suffice in most 
> instances of a flat tire? In 32 years 
> of driving I  have yet to have a flat tire while on the road. (I'm
> sure it will happen  tomorrow now) I'm looking for reassurance 
here.
> 
> Please voice your  opinions about driving sans spare.
> 
> Thanks,
> 
> Marty  Galbreath
> 3765 
> 
> 
> 
> Marty,
>  
> I have about 600 watts mounted the rear firewall - what kind of 
equipment  
> are you using? did you ground and power up directly from the 
battery?  did  you 
> use adequate size wiring?
>  
> The point is that I have absolutely NO background noise or 
interference,  but 
> I also used the highest quality stuff I could afford and ran 
everything the  
> way I learned after talking to a lot of people and reading books 
on audio  
> installation.
>  
> Andy
> 
> 
> [Non-text portions of this message have been removed]






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