amps, speakers, ohm rating

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kaztheminotaur

Member - Posts: 48

Joined: September 29, 2009

Location: Pennsylvania, United States

Posted: September 30, 2009 at 7:05 AM / IP Logged

Lets say I am looking at an amp that is rated at 75W X 4 @ 4 ohms and 100W X 4 @ 2 ohms. If I hook up a 2 ohm dual voice coil sub and 4 ohm components will I get 100W to the sub and 75W to the components? Or do all the speakers on the amp need to have the same ohm rating?

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i am an idiot

Platinum - Posts: 13,667

This member consistently provides reliable information

Joined: September 21, 2006

Location: Louisiana, United States

Posted: September 30, 2009 at 7:48 AM / IP Logged

You will be sending 200 watts to the sub, and 75 watts to each door. Your speakers do not have to be the same. This setup will be fine.

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kaztheminotaur

Member - Posts: 48

Joined: September 29, 2009

Location: Pennsylvania, United States

Posted: September 30, 2009 at 9:09 AM / IP Logged

Each voice coil should be wired seperately right? Not series or parallel?

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i am an idiot

Platinum - Posts: 13,667

Joined: September 21, 2006

Location: Louisiana, United States

Posted: September 30, 2009 at 11:41 AM / IP Logged

You said you only had one set of terminals on your box. Bridging the amp and wiring the voice coils in series will be your best bet.

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speedtrip

Member - Posts: 5

Joined: September 24, 2009

Location: Washington, United States

Posted: September 30, 2009 at 2:51 PM / IP Logged

I think it was me who only had 1 terminal on my box.

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amps, speakers, ohm rating

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