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Discussion Starter · #1 ·
**Info about Vehicle**
2014 Jeep Rubicon with Premium system.

OK I have been searching all morning with no results, I am just trying to find out if the two front speakers get full range audio, from the lowest low (that sub gets) to the highest high (tweeters get) that the stock head puts out?

Basically what I want to do his this, I want to keep my OEM Head unit and I do not want to splice wires if I don't have to, I have the speaker harness's that would let me connect to the two front speakers (woofer connections). All I need is just one set of RCA's (2 channel) that will go to an EQ which has 6 channel output (front/Rear/Sub).

From the EQ I will run one set of RCA's to the sub amp and two sets of RCA's to the 4 speaker amp. The EQ will do the fading as well as most of the sound frequencies adjustment. However, I still want to retain the 3 band EQ from the stereo for minor adjustments to Bass Treble and Mid since the EQ will be locked in my glove box so that rules out the PAC harness.

So my question is, do those two front speaker connections get the same full frequencies that I would get if I was to use the LC8i and sum all the connections into one set of RCA's? I would hate to splice all those wires just to get one set of RCA's, kinda not really using it to its full potential.

Please read this before you post..

I appreciate everyone's opinions on this board and understand the wealth of knowledge. However, I am just looking for the answer to this question and not looking to replace the head unit.

Please note I use to install car stereo's (before the stupid CAN) and I do understand that replacing the head unit would be the best for sound. However, I want to keep the stock Factory NAV, it has one feature on it that I cannot get on any aftermarket unit plus people just do not steal the stock head units like they do the aftermarket units. Besides the two subwoofers everything else will appear stock which I like, with amps hidden under seat and EQ locked in glove box.

Also with my old ears (almost 44) I do not need super clean sound, I just want louder with better highs and better lows which I can adjust in with the EQ. However if I am going to lose frequencies by just connecting to those two front speakers then I am going to have to go the LC8i way and splice into all the connections.

By the way, does anyone know if anyone makes a harness that can plug right into the factory amp to get this connections without splicing the original harness's? If someone did I would buy that and just use the LC8i.
 

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Discussion Starter · #2 ·
A little update since some people on this forum might look for the same answer, according to people on the JK forum, yes the two front speakers do you get full range.
 

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The reason for the LOC is that most amps require RCA inputs from the headunit. And, the stock HU's do not have RCA outputs for an amp. If you have an amp that allows high level speaker inputs then, you wouldn't need an LOC. Regardless, you have to get the signal to the amp from HU. So you have to splice into the speakers, or come up with another way of getting signal to the amp.

NO coaxial speaker is going to give you the lowest of the lows. Only a subwoofer can do that. Coaxial speakers really don't handle the lows very well. They are basically a midrange speaker and a tweeter. This is why when you have an amp with a sub channel, you set the speakers for HPF, which eliminates the lows for your subwoofer to handle. This increases the sound quality, because a midrange speaker sounds crappy trying to handle subwoofer frequencies which it cannot adequately reach. Midrange speakers don't do that well with bass either. A subwoofer will kill a midrange speaker in bass handling capability.
 

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Discussion Starter · #4 ·
Thanks, I knew that already but for people that do not it is a good little write up you did there.

Reason I was asking is I just need one set of RCA's that have full range which will go to an EQ which will then split up the lows which will go to the subwoofer amp and the midrange and highs will go to the amp that supplies the four coaxial speakers. I have adaptors from crutchfield that connects to the front speaker harness so I will not have to splice, just use a connector.

The reason for the LOC is that most amps require RCA inputs from the headunit. And, the stock HU's do not have RCA outputs for an amp. If you have an amp that allows high level speaker inputs then, you wouldn't need an LOC. Regardless, you have to get the signal to the amp from HU. So you have to splice into the speakers, or come up with another way of getting signal to the amp.

NO coaxial speaker is going to give you the lowest of the lows. Only a subwoofer can do that. Coaxial speakers really don't handle the lows very well. They are basically a midrange speaker and a tweeter. This is why when you have an amp with a sub channel, you set the speakers for HPF, which eliminates the lows for your subwoofer to handle. This increases the sound quality, because a midrange speaker sounds crappy trying to handle subwoofer frequencies which it cannot adequately reach. Midrange speakers don't do that well with bass either. A subwoofer will kill a midrange speaker in bass handling capability.
 

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Thanks, I knew that already but for people that do not it is a good little write up you did there.

Reason I was asking is I just need one set of RCA's that have full range which will go to an EQ which will then split up the lows which will go to the subwoofer amp and the midrange and highs will go to the amp that supplies the four coaxial speakers. I have adaptors from crutchfield that connects to the front speaker harness so I will not have to splice, just use a connector.
Searched and Searched and finally found a thread that talks about what I was thinking of doing... keeping the factory HU and adding and amp for the speakers + sub. Very curious how this turned out and if anyone else has a similar setup and can chime in.
 
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