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Coolwazabi

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  4. Clear this For me?

    in General Audio - Can't find a category for your question? Ask here.

    Posted

    Maybe... So basically the Gain setting tells the amp the right input voltage so that it wont exceed a certain RMS rating or will stay in that range. So the higher the gain is the more power maybe?

    So you could totally fuck up your amp if you odnt know how to set the gains?

    yep... gotta set it right.. thats why reputable amps are more popular.. cause they put of the RMS + more... a lil cushion i guess

  8. Clear this For me?

    in General Audio - Can't find a category for your question? Ask here.

    Posted

    oh and...

    when you talk about a sub being 4 ohms, that's a nominal or "average" impedance. The DCR or DC resistance of that usb is actually about 3.6 ohms at rest.

    A speaker is a reactive load. You're sending current through a coil of wire when producing sound with a

    speaker

    , and this generates inductance. As a result, the impedance of the speaker will vary with the frequency of the alternating current going through it's coil (the frequency of the sound you're playing.)

    The box also has an effect on this change in impedance, and the rise in impedance as you approach the Fs of the driver and enclosure is directly proportional to the efficiency. (weird but that's how it works.. balances out in a sense.) but to answer your question, yes you can load match an amp and sub combination with the enclosure you use and the box's tuning frequency to get the most power from the amp at a certain frequency range for SPL events, and that combination may not be what would sound like an ideal match under normal circumstances.

    I've seen people run amps at 1 or .3 ohms with big subs (nominal) to get ideal load at their burping frequency because the math worked out that way.

    The trick is how long you plan to run the system at those loads.

    quoted from someone.. read most of it.. sounds good to me.. :D

  10. Clear this For me?

    in General Audio - Can't find a category for your question? Ask here.

    Posted

    Alright that cleared up the first part cuz im probably going to over power my subs for my next build but still need to fully figure out the gains. Basically it matching the volts of the headunit with the amp? im guessing

    uh... no.

    its sorta like... head unit + amp = a certain voltage which depending on what ohm you have it wired to will determine your wattage.. "pending on if the amp is clipping, box rise, etc."

  12. Cadillac Driving Issues ???

    in Engine and Performance - Anything for that couple extra horses!

    Posted

    Hey got a 94 Cadillac Deville with nearly 100k. The car was having some issues about a month ago. The car would idle odd and jump around. Took it to a mechanic and he said the idle speed control sensor is no longer working. Replaced it.Also was having a leaky water pump gasket and radiator. Had the idle control sensor, the water pump plus gasket and the radiator. Now it runs a little better, but seems to idle a little too low, car has very little power, is extra loud and gets crappy gas mileage. Mechanic said it could either be the catalytic converter or the throttle body being dirty, but no leaky exhaust pipe "maybe thought it was loud because of that". Cleaned the throttle body real good, helped a little but still has the same issues. I was told the catalytic converter would smell like poo if it was too clogged.

    I could adjust the idle control sensor a little to make it idle a little more, but not sure if its gonna do any good. But has anyone had similar issues and maybe a quick fix or just a reliable fix ??

  15. Need Help With My First System

    in General Audio - Can't find a category for your question? Ask here.

    Posted

    Just a quick question, How big of a difference will using either the 2ohm or 4ohm be? It's only a $1.00 difference where I'm getting them. :)

    um... not really a difference except just the coil config.. if you plan on running an amp that puts out power at 1 ohm and is 1 ohm stable.. you'll want 2 dual 4 ohm subs... so you can wire them to 1 ohm...

    NOW !!!

    if you wanna get an amp that does the same amount of power at 2 ohm.. you'll want dual 2.. so you can wire them to dual 2... generally amps that are not 1 ohm stable but 2 ohm stable.. IMO i think there more expensive but easier on the electrical on you car.. but are kinda rare.

  22. temp gauge being dumb

    in Engine and Performance - Anything for that couple extra horses!

    Posted

    WEll i have a 95 chevy caprice. the temp gauge is going nuts.. 99% of the time it'll seem off and stay at 0 degrees. every once in awhile it'll kick all the way to the red "HOT" and my dash has a light that says "check gauge"... i crank the heat to see if its really really hot.. "it isn't" then it'll randomly turn off.. no harm.. NOW i just want it fixed. I already replace the temp sensor "like a brass lookin spark plug" but it didn't fix it... any ideas ??

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