which is harder on elec. ? ohm wise....
- Thread starter basswiigee
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No, there's a huge difference between running an amp at 2 ohms and .5 ohms, regardless of how much power you're running. Operating your amp at a lower impedance (say, 2000w @ .5 or 1) taxes your vehicle's electrical system much more heavily than it would if you were running at 2 or a higher impedance. A lot of people try saving money by finding an amp that will put out power at a lower impedance, but you'll basically be putting that much or even more right back into the electrical that would be needed to back it up. So, to answer your question, lower impedences tax an electrical system much harder than higher ones.
Maybe somebody like @TaylorFade or @keep_hope_alive can explain the technicalities that go with it.
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basswiigee
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yeah i kinda knew that but wanted to double check!!! lol i need 2 ohm power!!!!!!!!
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basswiigee
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don't know if that will push my sub, i think thats about what my amp now does at 2Ω see sig...
nkrell11
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Why don't you just strap 2 amps? Seems like that would be your best bet imo.
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basswiigee
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i couldn't pass up the deal on the sub... amp i know is .5Ω stable all day, but don't know if my elec. is up to par... i have all skyhigh 0ga, and big 3, and mechman 240amp alt... but no extra batts....
---------- Post added at 02:27 PM ---------- Previous post was at 02:26 PM ----------
won't two amps draw more than one bigger one?
hispls
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Because having 2 amps seeing 1 ohm would help efficiency?
Man you guys should really do a little research before informing someone.... .5Ω/2Ω, will draw the same amount of amperage if the power is the same. Look up Ohm's law and read about it. Apply it to all questions about electrical/ ohm load.
Not disagreeing with you here, but could you then explain why it takes such a beefy electrical system to operate an amplifier at half an ohm? I'd run my amp at .5 (it is capable with the proper setup), but I've been warned too many times to even attempt it.
Ohms Law I=V/R Where I is your current (like what your alt can produce) V is your voltage (like what your amp is producing) and R is resistance (which your subwoofers are creating)
Most car audio amps are a constant VOLTAGE source. Looking at the formula above that means they try to maintain a constant voltage given any load they can handle (when they can't handle it they shut off or break, hence .1ohms resististance would break about anything lol) If you keep voltage the same and drop your impedence you dividing by a smaller number, hence your I value, or draw from your alt, doubles. Voltage squared/resistance gives you watts. So if wattage is the same given a different impedance load you need less than 2x the voltage to have the same
wattage
I need to get a avatar, I post tech stuff all the time and nobody ever remembers me lmao.
Most car audio amps are a constant VOLTAGE source. Looking at the formula above that means they try to maintain a constant voltage given any load they can handle (when they can't handle it they shut off or break, hence .1ohms resististance would break about anything lol) If you keep voltage the same and drop your impedence you dividing by a smaller number, hence your I value, or draw from your alt, doubles. Voltage squared/resistance gives you watts. So if wattage is the same given a different impedance load you need less than 2x the voltage to have the same
wattage
I need to get a avatar, I post tech stuff all the time and nobody ever remembers me lmao.
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basswiigee
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me too!
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