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Old 03-23-2014, 05:35 PM   #1
d33p
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Question Help me decide what to buy!

I have a 2005 e46 m3 with HK system and OE navigation.

The only things Im sure of is I want only a front stage with a sub. Want to power it all with a 5 channel amp.

Components-
Alpine spx17 pro

Amp
Alpine pdx v9
or
JL HD900/5

Sub
Not sure yet but both amps have plenty of sub power


So here are my questions:

Do I need a LOC such as LC6i or Audio Control matrix? If so...
Do I hook into the wiring before or after the HK amp?

If I buy the JL amp without any LOC do I hook right into it before or after the HK amp?

Can the Alpine take balanced signal straight like the JL?


Im really looking for clean sound more than bass.
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Old 03-24-2014, 07:59 AM   #2
mr ilia
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You have to do product research first. Find user manuals online and do dome reading to figure out what each item has to offer.
For installation, you will be hooking up everything before the amp. essentially you will be eliminating the stock amp.

If your amp supports balanced inputs, then you do not need LOC. You will need to solder RCA plugs to stock wiring and hen plug it in to the aftermarket amp.
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Old 03-24-2014, 03:00 PM   #3
d33p
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Believe me, I did all the research I could.

Not sure which product to go with...lc6i or Matrix. Someone on this forum said he needed the Matrix as the lc6i didnt work properly so it gave me pause.

Will sound quality be better using an AudioControl product or go straight into the JL amp Im looking at?

Do you know how much voltage the pre amp wiring carries into the amp?

Last edited by d33p; 03-24-2014 at 03:01 PM.
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Old 03-25-2014, 11:29 AM   #4
mr ilia
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A lot of AudioControl products accept balanced inputs, the same goes for PPI, some Kicker and JL products, JBL "P" line as well.

I do not know how you searched, but the 1st linked in Google was the PDF manual for JL HD900/5. If you read the manual you will see it does accept the balanced inputs.
http://mediacdn.jlaudio.com/media/mf...pdf?1342152066

I do not think Alpine pdx v9 does, as it is not listed in the manual.

If your AMP or AudioControl crossover accepts balanced inputs, then you have to read the bottom half of my original reply from yesterday.
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Old 03-25-2014, 03:27 PM   #5
d33p
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I already know the JL amp can accept the inputs thats why I asked "Can the Alpine take balanced signal straight like the JL?" I was more wondering about the Alpine which I figured didnt but wanted some other opinions.

Would using the Audio Control products give me better sound than just going straight into the amp.

So some kind of LOC + Alpine amp
or
JL amp without any LOC
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Old 03-25-2014, 03:30 PM   #6
d33p
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The reason Im asking about the voltage is that some products are input sensitive and wasnt sure if something like a lc6i increases the volts.
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