Quote Originally Posted by jhnkvn View Post
Sorry, I was thinking about speaker wires while typing that. Naisulat ko pa "the perfect speaker"

However, the premise still remains the same. After all, the greatest attribute that affects impedence is resistance. In that case, impedence is result of resistance.

When I look into car audio installations (trust me, I've seen a lot), you won't see them doing multiple grounding points. The reason for this is a matter of saving themselves headaches. The more grounding points you do, the more chances of encountering a ground loop after all. If you can just do a single ground, why the hell do you need multiple ones? I mean, if you have multiple grounding points and you're experiencing a voltage drop, you'll be checking each and every one of them versus just checking once on a single grounding point. Why go through all of the hassle?

I don't see the need for efficient distribution. Electrons in wires travel something like 300,000 kilometers per second. As long as it can get from Point A to B with the least resistance, okay na yun.

Between multiple 8AWG versus a single 1AWG, it won't matter. It's just that I don't know why people would spend for MORE when there's less. You're spending more for plastic sleevings on the wires, the labor of grounding it, the brand name of HKS, and the circle gold plated stuff that does nothing except be more eye candy. In that case, you're better off getting a larger diameter wire and dressing it up on techflex of your choice. Less expensive, more protection, and less engine bay clutter.

It's like if Jollibee is offering you 100g ChickenJoy Breasts for 100 pesos versus 100g ChickenJoy Wings for 200 pesos. It's the same chicken down to the last gram... and given that you have no special preference on chicken parts, why would you choose the more expensive one and the more tedious one?
In an audio system, you need to ground everything that needs to be grounded or else the device will act as a huge antennae absorbing noise, transients, and statics. Grounding is also called "shielding" (shielding from noise).

Ever wonder why cars has negative earth(chassis grounding) its simply because it is an unbalance electrical transmission, the chassis being negative while positive as "hot" line. For Low frequency applications such as car audio or video, unbalanced transmission works fine but you should always shield. Same for coaxial system, being unbalance it needs to be shielded and earthed. For high frequency digital transmissions balance transmission is much preferred because the noise can be cancelled by twisting the pairs, same technology used for 802.3/ ethernet. There are so many derivatives of wire transmission CAT3, CAT5 shielded, unshielded etc., all handles specific frequency range, lengths, speeds with the same goal - transmit signal and receive to the other end with least noise attenuation.

When the first cars were built, it was using positive as the chassis ground and negative as "hot". Similarly this was applied in telecommunications DC systems, positive being the earth ground wile the negative as "hot". This principle of reverse polarity is applied to prevent "cathodic reaction".

Wiring a gauge 0 to your audio system is same as making a grounding BUS BAR, so in effect your wire makes an efficient 0-ohm return to the ground. Your car chassis acts like a grounding bus-bar but it is not efficent enough because of dissimilar alloy metals with different bonding. If you want to be "extra OC" you could actually customize a copper ground bus-bar in your car, but then again that would be unecessary if you have already a dedicated ground wire.