Upgrading base stereo (keeping oem head unit)

peleincubus

So I have read over some past threads, but they typically deal with Bose systems.

Im trying to gauge how feesible it would be to put for example hertz component speakers and sub in the spare tire enclosure along with an amp while keeping the stock head unit.

Is there something you can use to bypass the head unit and connect the amp to something else? So you can use the full potential of the hertz speakers and sub?

It has been a long time but the higher the volt the better the sound quality correct.

I guess for the most part I want to have a quality sound system but for it to look oem and completely hide the amp etc.

RumbleFish

While i'm certainly no expert when it comes to this area, I've been doing a bit of reading around as well. It looks like you can use you stock head unit and add after market speakers, sub and amp, so long as you buy a LOC (Line Output Convertor) of some sort.
There are cheap ones and better quality ones that come with features like DSP (Digital Signal Processing) that really improve the sound quality greatly.

My understanding is that bigaudiofanat really knows these things inside & out
Nissan 370Z Forum - View Profile: bigaudiofanat

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blackcherry20

^^^^^truth. He is awesome at this stuff.

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peleincubus

Thanks yes he is. I have read a lot of threads and in many of them he throws down a ton of great info.

I have been reading about the jl cleansweep seems promising (although I read something a separate audio knob or something) and it looks like you can put a single amp big enough to power a sub and 2 higher wattage speakers under a seat.

Still a lot to figure out though. For instance can you still use the volume on the steering wheel with this setup. But that is what the forum is for I suppose.

bigaudiofanat

RUN for your ever loving life from the crappy clean sweep! And here is why, While other DSP's and LOC's allow you to change the volume through the head unit. The Clean sweep calibrates itself to one volume setting off your head unit, from that point on you MUST use a little volume knob that comes with the clean sweep to control volume. It's pretty much the stupidest thing I have seen. I even talked to Jl directly at Cedia this past year about it. You can use a simple LOC like the audio control LCi6 to allow you to add new amps. If you want to go with a DSP I would recommend looking at the JBL MS8 for more control over the EQ settings as well as time alignment.

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peleincubus

Ok so I was mistaken about the spare sub. I didn't realize you would need to have a cut out in the carpet.

But i saw In a thread where someone put a bass tube behind the strut bar. What would my options be fore something that would fit there but with a little bit better sound quality?

If I am going to put in hertz components and the jbl ms8. I don't really want to match that with a bass tube.

Would it be possible to put say a 6" sub and amp there and the jbl ms8 under the seat? I know that is not much sub AT ALL but with all combined it would be adequate and should tons better then my base stereo.

Thanks for any help or recommendations.

peleincubus

I am comtemplating adding a sub between the space tire well and the area in front of the strut bar (see pic). The dimensions are approx. 8" wide, 20" long, 7" deep. Any thoughts on the angle of the sub would be appreciated.