Maybe you had one of the channels going into the LOC wired backwards.
I have a Premium 7 non-nav sat radio system with the 10 speakers but, unless it's hiding, no factory amp.
Last week I installed a Blaupunkt Pnp THA-1250 monochannel amp with a subwoofer.
Since it was plug and play it has a integrated LOC so I decided to just tap off of both my left and right rear speaker. Now, it did not come with a connector to connect my speaker wires to the amp so I just decided to run an old LOC I had lying around and hooked it up that way.
But the subwoofer was really low. It was coming on, but even with the amplifier all the way on, I would have to turn up the bass completely on my stock head unit, but all I could really hear was my stock bass speakers in front and rear.
So I decided to just take the hu out and splice the wires directly off of it, and connect it to the LOC that way and immediately I was able to hear a huge difference!
My question is, how is this possible? I soldered all my speaker wires etc so I really don't think there is a lose connection, and I didn't think I have a factory amp (looked under seat) that would do something with crossovers and limit the bass sent out.
Should I get a better LOC? Like the LC6i, that removes the bass limit or something like that?
I didn't really want to buy a new head unit, because they simply do not look OEM.
Also, since my amp is turned up all the way I'm debating on whether I should put it next to the spare wheel in the trunk because it does get kind of hot.
Help me understand this though:
I connected the amp to the wires behind hu to the cables going to the bass component speakers. Without having my the low level filter or whatever on on my amp, my subwoofer was playing the full range of sound (ie not just bass ). But... If there is no sort of processor between the hu and the component speakers,, and the wires apparently carry the full audio signal, how do the component speakers know what sound to play?