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Confusion with Ohms


betweenmatt

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Posted

Ok so the tech sheet of my subs say the RMS is 50-250, and their impedance is 4 ohms. How are these numbers affected when I switch the load to 1 ohm? Would I be damaging my subs running at the max RMS at 1 ohm?

I got 4 alpine swe-10s4's and Im looking at a used hifonics 1200 watt 1 ohm stable amp which is a huge upgrade from my 400 watt 2 channel amp at 4 ohms lol.

Posted

You arent changing the nominal impedance rating of your coils. Each is still four ohms. Wiring 4 voice coils together with a rating of 4 ohms each presents a 1 ohm nominal load to the amp.

If your amp is rated for 1000 watts at 1 ohm then the subs should each get 250.

Posted

A 1,000 watts is a 1,000 watts regardless of the what the ohm load you are putting to your amp. They will sound pretty much identical.

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Posted

Ok cool thank you. Is the sound difference between 1k at 4 ohms and 1k at 1 ohm load noticeable?

all that matters is what your amp sees, as far as ohms...so wire your subs to what ohm you want your amp to see based on what it produces at those respective loads...1 ohm, 2 ohm...etc

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