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Discussion Starter · #1 ·
I have a 2003 Saab 9-3 SS, with the factory radio.

Currently i have a Tsunami LOC, coming off my front door speakers for my 2 12in subs. The problem is that the signal running into my LOC is amped, and i believe the LOC is only rated for 5-13watts. i am also getting another amp for my 6x9s that will be installed, so i would like a 4-channel, high input LOC.
Are there any recomennded brands?
What do the adjustable LOCs give me from a non-adjustable one?
It looks like the 4CH LOCs need 4 speakers to run it, is that really necessary? My 2CH LOC has 2 speakers running off of it.
Can i just splice off those wires?

LOCs i am looking at:
http://cgi.ebay.com/ebaymotors...ZWDVW

http://cgi.ebay.com/PERIPHERAL...wItem

http://cgi.ebay.com/ebaymotors...ZWDVW

http://cgi.ebay.com/Tsunami-LO...wItem

thanks for the help. And obviously, the cheaper the solution, the better
 

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For the LOC to work properly it needs to handle the incoming speaker power and convert it to a suitable line level signal.

For most speakers in this car worth tapping for signal, you need a LOC that can handle 20-25 watts. Otherwise when you turn up the volume, your LOC will distort or clip the signal.

Some LOC's have adjustable gain. You turn a screw and you can tailor the line-level output. You would need to measure the output voltage from the LOC and know the input line-level specs for the aftermarket amp. Most reputable amps will post their line-level specs, usually 150 mV or so. You could also adjust this "by ear" to make sure your amp sounds likes it's getting a clean signal but not clipping. The aftermarket amp will also have an adjustable gain which you use to basically match the volume of your newly amped speakers with the rest of what's going on in the car.
 

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Discussion Starter · #3 · (Edited)
so, do you feel the adjustable gain is unecessary, or is it worth the extra cash?

Asfar as hooking up the signal, do I have to run all four speakers to the LOC, seems like an awfull lot of work if i already have the proper signal running to it, (front door speakers)

what about the ones i linked too, are they any good?

that last one looks like it will do the trick, plus its cheap
 

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I do not think adjustable gain is necessary.

From your list, I would suggest the PAC OEM-2. I think others have used that same one in a 93. They also give a lot of specs, as opposed to little or no specs, which is what most companies give you. Also, there is nothing fishy about what they have to say. The bit about transformers is spot on. The unit also seems to be thoroughly labeled and color-coded.

There are lots of LOC's out there as you can see. Based on experience here, I would suggest going by the "$20 Rule," which is something I just made up. Basically, if you spent less than $20 on your LOC, it probably will not perform well in a 93.
 

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Discussion Starter · #5 ·
ok, thanks for the info. As far as the inputs, do you suggest i just splice the left channel (front and rear) together, and the right channel (front and rear) together? I don't think i need all those speakers just to run my subs and 6x9s.

The previous owner had done this for the LOC, but it wa off the rear deck 4in. i guess he was too lazy to run wire off both speakers, and only chose to get a signal from one.

I think that is what i will do, because i believe you only need all 4 if you are going to run 4 speakers (2 front, 2 rear) to get the fade. I will just adjust my fade with the gain on my amp...
 
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