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Smoove

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Posts posted by Smoove

  1. 41 minutes ago, bigp88 said:

    Total user error I bought some used zv4s 18 months ago and I coulda sworn they were d2s. But my dmm was broke that day and they were d1s. Long story short amp been repaired before due to vibration damage and not knowingly I ran it at .25 for a year before a few caps on the inside exploded. The bad news is it just went out of warranty and I won't repair it a third time but just keeping it real this is one of my top favorite amps I ever owned.

    :(  I just killed an amp from vibration. I will be sending it off for repair.
    Not to pick at a dead horses corpse. But i have a used scv6 and a new scv7500 if you not gonna repair you scv6k again.

  2. With electrons flowing from - to + why then would power leads fused on the positive run?

    Because it is closest to the voltage source.

    Closer because it's on the return path?

    These were the kind of questions I was hoping would get answered.

    "Voltage has a higher potential on the positive terminal, if you cut off the highest potential then you are left with ground (most of the time 0 volts) and a floating node with the voltage of whatever air is."

    If cueernt is Neg to pos. Why is does the POS have the highest potential?

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  3. I have seen too many articles and arguments about the flow of power from a battery.
    Does the negative side feed the amp

    or does the positive side feed the amp?

    I am not an electrical engineer. So the whole Pos feeds the Neg side of the battery, ohms law states blah blah blah. I need a management level explanation, not an engineers level explanation.

  4. 3. CCA is just as good.

    CCA, or Copper Clad Aluminum, was intended to be a deception from the word GO. Companies entered the cable market with an intent to take a slice of the pie owned by the main cable suppliers. The easiest way to do this is to come to the market with a lower price. As copper is a commodity, its costs are clearly defined by the market. Larger companies that have greater buying power have the ability to purchase cable (copper / jacket / mfg) at a lower price than smaller companies with less buying power due to economies of scale. So . . . if you want to enter the cable business, offer product at a lower price than the big guys, and don't have the buying power they do, the way to accomplish this is to purchase lower quality goods and then market it as a lower priced alternative. So, yes that's exactly what CCA is - a lower priced alternative to standard copper cable. That would make OFC a higher priced alternative and tinned OFC an ever higher priced alternative. So, what's wrong with the below line of thinking?

    - CCA - lower priced alternative

    - Copper - the reference

    - OFC - better alternative

    - tinned OFC - best alternative

    The answer is simple. CCA isn't copper, it's a copper alternative. Copper, OFC, and tinned OFC all offer the same conductivity while CCA has 30 - 40% greater resistance than copper cable. OFC is a process done during the annealing of the copper to remove the oxygen in an effort to prevent it from turning black when it's exposed to oxygen. Tinning the copper strands adds an additional layer of protection against corrosion and oxidation. Some industries - the marine industry for example - mandate the use of tinned copper cable in the construction of vessels. On average, tinning copper cable adds 7% to the raw materials cost of the cable - not insignificant by any measure.

    The rule of thumb when running CCA has been to use two AWG sizes larger than what the AWG charts specify for copper cable. So, then really, you're comparing 1/0 AWG CCA to 2 AWG (standard) copper cable - is the cost savings really there? Now, comparing 1/0 AWG CCA to 1/0 AWG tinned OFC and they saying - Holy Cow! Look how much money I'm saving by running CCA . . . well, that's just being naive.

    The other "marketing" benefit has been weight. No doubt, copper cable is heavy. If I were building a race car and wanted to go faster, one of the best ways is to reduce weight. So - using lightweight cable is a good alternative, right? Not really. The only time this would be acceptable would be if there was indeed a weight savings when comparing two cables of identical conductivity and this isn't as cut and dry as you may think given the different ratios of aluminum and copper used in different offerings of CCA.

    Many reputable companies have entered the CCA business out of necessity as this is the way the market has gone. I don't see that changing anytime soon. When shopping for CCA, you definitely should consider the ratio of copper to aluminum that the cable consists of as this affects conductivity.

    What about the Hybrid wire?

    some claim to be 70% OFC with 30% CCA and there are other that claim 50% OFC with 50% CCA.

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