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Bavarian Soundwerks' Mobile Electronics Forum
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Old 10-24-2008, 11:14 AM   #21
ca1242
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The more componets, the more chances for distortion, so doing away with the loc is better. Since you head unit has a built-in amplifier, you are not getting a perfectly "clean" signal, but shouldn't be too bad. Try the amp first. If you don't like it, you can always upgrade the head unit.
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Old 11-01-2008, 09:45 PM   #22
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I'm sixteen years old and do not know much about wiring or audio for that matter, but money is scarce and I decided to take a chance wiring the subwoofers in my 2001 325Ci. I have a Kenwood amp, 1800watts, and 2 12" 1500watt enclosed in my trunk. I wanted to keep the OEM amp to power the speakers inside the car. So today i mounted the amp securely on back of the enclosure, connected the amp power to the + terminal of the battery, connected the ground to the mount next to the OEM amp. I cut and stripped pin #10 (white) on the grey connector, and re-clamped it with the remote turn on wire for the aftermarket amp. The aftermarket amp and OEM amp turn on fine (i get audio from inside the car). I then proceeded to cut pin #2 (yellow) and pin #1 (brown) from the grey connector, and wired them to the LOC i bought from bestbuy. I did the same for pin#25 (blue) and pin #24 (brown). I DID NOT RE-CONNECT THESE BACK TO THE OEM AMP, JUST CLAMPED THEM TO THE LOC. I bought RCA cables from Lowes and connected them from the LOC to the aftermarket amp, connected the speaker wires from the amftermarket amp to the subs. It doesn't work.

What am I doing wrong?

Before I did all this I took out the H/K stock subs, cut and stripped the speaker wires connected to them, and re-connected those to the 12"s. It was feeding them little watts, but it worked nontheless.

I felt curious, and re-connected my previous setup, and it still worked. This leaves me to two hypothesis on where i went wrong:

1) i somehow wired the LOC wrong, or got the wrong type of LOC (the one i got is the only one they have at bestbuy)

2) I cut the wrong wires that i connected to the LOC.


Thanks.
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Old 11-02-2008, 12:20 AM   #23
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You tapped the wrong wires.
Need to get head unit outputs:
yellow/black + brown orange and blue/black + brown/orange. You need a LOC capable of balanced differential signals, such as the peripheral sven2. Do not cut these wires (or you will lose rear speakers), just splice into them.
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Old 11-07-2008, 09:35 PM   #24
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that worked. thanks. but now when i turn my bass up loud the other speakers shut off? this does'nt happen all the time just everyonce in a while.
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Old 11-08-2008, 04:47 AM   #25
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Originally Posted by Franxta View Post
that worked. thanks. but now when i turn my bass up loud the other speakers shut off? this does'nt happen all the time just everyonce in a while.
So when it is loud, bass keeps playing but speakers shut off?
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Old 11-08-2008, 02:21 PM   #26
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exactly
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Old 11-08-2008, 03:07 PM   #27
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That is a little strange.
- Check all connections
- Check turn on wire - does voltage drop too low? try jumping the amp tun-on input to the power wire temporarily (rather than the oem amp turn on)
- check the signal connections. Is the adaptor properly connected? something shorted or grounded?
- do you have good power/ground connections?
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Old 05-21-2009, 09:51 AM   #28
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It because the stock amp is clipping...it cannot handle all of the power and signal draw of the other amp and sub
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