newbie need help...

[TBfan82]

Hello everyone. I am new to the car audio scene and have been reading the forums but I'm still confused about what ohm subs I should order. I have ready to be installed a pioneer AVIC D3, an Alpine PDX4.100 (stable at 2 and 4 ohm), and 4 JL TR570 evolutions (50 wrms 4 ohm). I want to run the 5x7's on 2 of the channels and 2 JL 10w1v2 on the other two channels. Should I order 4 ohm subs and run them in parallel into 2 bridged channels on the amp? I have someone telling me to get 8 ohm subs and I wanted some more advice. Any help is appreciated. Thanks guys.

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[TBfan82]

Anyone able to chime in? Is this the right way to run 6 speakers off a 4 channel amp that is stable at 2 ohms? All speakers should be 4 ohm right? Bridge 2 channels into the 4 ohm subs connected in parallel and connect the 5x7's in parallel to each of the other 2 channels. Why would I be advised to get 8 ohm subs? Thanks guys.

 

[x1le 10+ year member]

Anyone able to chime in? Is this the right way to run 6 speakers off a 4 channel amp that is stable at 2 ohms? All speakers should be 4 ohm right? Bridge 2 channels into the 4 ohm subs connected in parallel and connect the 5x7's in parallel to each of the other 2 channels. Why would I be advised to get 8 ohm subs? Thanks guys.

I think you will be exceeding what you're amp will be able to handle by running 4 speakers and 2 subs in parallel. Hopefully someone who is more knowledgable on on this matter will post and tell you for sure as I'm no expert.

But I've got no idea why someone would be telling you to buy 8 ohm subs, man...

 

[tigerf117 10+ year member]

You could bridge 8ohm subs down to 4ohms and bridge it to 2 channels on that amp which would be fine. i personally would run all 4 speakers off that one amp and get another amp dedicated to the subs.

 

[TBfan82]

You could bridge 8ohm subs down to 4ohms and bridge it to 2 channels on that amp which would be fine. i personally would run all 4 speakers off that one amp and get another amp dedicated to the subs.

Yeah, I putting this in a Ford Lightning so room is very limited. If i run the 8 ohm subs parallel into 2 channels bridged, can I still run the 5x7's parallel into each of the other 2 channels?

 

[tigerf117 10+ year member]

yes thats not a problem. I would definitely be careful with the gains and settings and adjust it slowly. You will be pushing that amp pretty hard that way. Wouldn't be a terrible idea to get some airflow over the amp if its not going to be in an open area (like for instance under a seat.