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P.I.M.P.
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2,477 Posts
Discussion Starter #1 (Edited)
Ok guys, Im not an expert in audio, but i already ordered my setup through research. I got JL stealthboxes, powered by a 300watt Xtant mono amp(150W @ 4ohms for the stealths), and am getting a alpine 9813 Headunit. Now, what i was thinking of doing is replacing the HK Sub amp, but leaving the main amp powering the speakers/tweaters/etc.

What i read is that the stock system uses differential outputs, not RCA, so you need line out converters and also that there could be compatibility issues with the HU. What I want to know is what do I need to make the Alpine headunit work with the stock system?Can I use the stock CD changer with the new HU?......what do I need to do to get the cleanest sound out of the amp/subs (since i need to use a Line-Out converter). Where exactly do I place the Line Out converter to convert the signal into RCA? Where can i get a really good Line Out converter?

Thanks in advance guys.

This is a modified diagram, originally done by VinnyMac(hope you don't mind).....I was wondering if this setup will work.
 

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Im The Man
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1,269 Posts
If you intercept the woofer signal after it has been processed it will be using the stock amp crossover slopes.

You can intercept the signal before hand using a Balanced differential LOC and then go to the amp. I have a balanced 2 channel loc if u need one.
 

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P.I.M.P.
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2,477 Posts
Discussion Starter #3
Thanks MCD007

*Wait, so if i change my HK headunit to the Alpine 9813, will I still need to LOC or can i wire directly to the new amp?

Also, can someone address my previous questions about HU compatibility/making it work with the stock system, and using the 6disc CD changer with the new HU?
Thanks
 
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