Car Audio Facts.

[Biker 10+ year member]

One Kicker Watt equals 5 regular Watts.

 

[60ndown 10+ year member]

That is extremely vague and opinionated. Explain yourself.

it was a joke, some peeps like spl some like sq, but everyone gets pissey if you say the

other is better or where its at.

but for me, its about music, not winning an spl comp, i want great sq and nice and loud.

sql,

but peeps have issues with that term also.

too many peeps have isues.

if music didnt exhist would spl comps?

 

[skmfkr 5,000+ posts]

ive never done so. //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

me either

 

[audioholic 5,000+ posts]

Also every bit of current and more that flows through your power wire also flows through the chassis of the car if you use a chassis ground. If you are not getting noise witht he signal wires near the chassis, then you've proven my point.

While Im not drawing sides on the induced noise arguement, I will say Ive read this reasoning before, it seems to be one side's end-all proof, and yet I dont agree with it. It seems to make sense, until you really think about it.

The idea of induced noise is from passing a low voltage signal wire close to a high current wire. The magnetic field emitted... yadda yadda yadda. But, the idea of your signal wire runs along your chassis anyway is not nearly the same thing as running your signal wire against your power cable. The current passing through that small wire on the positive side, is concentrated into a small area (helps increase magnetic field strength), while the same current passing through the chassis has much more metal and distance to spread itself throughout. The high current concentration is not there, hence no increased magnetic field as in the case of the current passing solely through the wire.

Again, not taking side, I know this battle rages on in the car audio world. But I am saying that reason is not the proof it appears to be at first glance.

 

[jake760 10+ year member]

1. Don't buy pyle or pyramid.

2. bolt your equipment to down, nobody wants a flying amp or sub box in an accident.

3. Don't bump in neighborhoods. 99% of people won't think "dang thats a good system" when stuff is shaking in their house.

 

[maldecido33 10+ year member]

______ watts MAX mean nothing.

Technically it means SOMETHING; it's just irrevelant to almost all applications.

 

[ravendarat 10+ year member]

One Kicker Watt equals 5 regular Watts.

or not

 

[bdawson72 5,000+ posts]

One Kicker Watt equals 5 regular Watts.

 

[ntense702 10+ year member]

ost:...

 

[helotaxi 5,000+ posts]

While Im not drawing sides on the induced noise arguement, I will say Ive read this reasoning before, it seems to be one side's end-all proof, and yet I dont agree with it. It seems to make sense, until you really think about it.

Well, the whole chassis thing is contentious but it makes more sense than thinking that a DC field, i.e. fixxed polarity, can induce noise in an AC signal. In the case of a combination of a high input impedance amp and a low ouput impdance deck you might have an issue with cheap, totally unshielded RCAs picking up the ripple. Quality components (not expensive just reliable and reputable) will take care of that issue.

If the power cable were an issue, I should have terrible noise in my system. My RCAs are run right next to both my power and ground cable for a few feet. All the current for my system both coming and going is right next to my signal wire. Strangely I have no noise whatsoever.

 

[Prowler573 5,000+ posts]

Well, the whole chassis thing is contentious but it makes more sense than thinking that a DC field, i.e. fixxed polarity, can induce noise in an AC signal. In the case of a combination of a high input impedance amp and a low ouput impdance deck you might have an issue with cheap, totally unshielded RCAs picking up the ripple. Quality components (not expensive just reliable and reputable) will take care of that issue.
If the power cable were an issue, I should have terrible noise in my system. My RCAs are run right next to both my power and ground cable for a few feet. All the current for my system both coming and going is right next to my signal wire. Strangely I have no noise whatsoever.

helo ~ my inerconnects aren't only run alongside my power cabling they're zip-tied to it. //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

I've got no noise either (thankfully) and I'm grateful for it as I fought alternator whine for a great long while in an '87 Crown Vic I once owned.

It's not a fun battle when you have to fight it. //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

 

[helotaxi 5,000+ posts]

helo ~ my inerconnects aren't only run alongside my power cabling they're zip-tied to it. //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

So is mine in a few spots.

 

[CaliforniabOY5 10+ year member]

if your not sure, dont post.

sorry master . .

 

[audioholic 5,000+ posts]

Well, the whole chassis thing is contentious but it makes more sense than thinking that a DC field, i.e. fixxed polarity, can induce noise in an AC signal. In the case of a combination of a high input impedance amp and a low ouput impdance deck you might have an issue with cheap, totally unshielded RCAs picking up the ripple. Quality components (not expensive just reliable and reputable) will take care of that issue.
If the power cable were an issue, I should have terrible noise in my system. My RCAs are run right next to both my power and ground cable for a few feet. All the current for my system both coming and going is right next to my signal wire. Strangely I have no noise whatsoever.

Like I said, not arguing for, or against either side on the debate (ive never tested for myself, so I wont chose sides) but I am saying the chassis arguement has a large flaw. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif//content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[helotaxi 5,000+ posts]

Like I said, not arguing for, or against either side on the debate (ive never tested for myself, so I wont chose sides) but I am saying the chassis arguement has a large flaw. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif//content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

So does the idea that you have the entire cross sectional area of the chassis available as a conducting path for a ground, but people still stick doggedly to that one.

The fact for both is that the steel in the chassis is not uniform and as such you get areas of high and low (relative) resistance. The majority of the current flows in the low resistance areas and these would act much like your power wire in regards to the field generated (slightly diffused). Best case these areas are 10x more resistive than copper and are nowhere near the 10x the cross sectional area of the power wire that you run making the idea that you need to keep your section of low resistance copper ground wire as short as possible totally laughable since the resistance of a few inches of large diameter copper wire is negligible compared to the several feet of high resistance autobody sheetmetal.