Sub Install

snoophog

Member
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2007 Mazda 6 S
I had an amp and sub installed but the sub does not have the sound I hoped for. They tapped into the rear door speakers since I do not have any speakers in the back window. It is a 10" JBL in a sealed box with a 1000 watt max Kenwood sub. Should I expect decent sound out of this?
 
Yes you could have better sound if you were running RCA's from an aftermarket Headunit. Tapping into a speaker picks up the bass tones but not the quality. If you have an aftermarket deck check to see if there is an independent sub output as the stock most likely does not.
 
well with the stock HU that's all you can do. So, yes you can get better sound but with an aftermarket headunit :) hope this helped some
 
Sealed is tight and punchy, so if you want just boom ported is the best. Also check how it is wired, if its 8 ohm, you can only get so much out of it.

If you want to keep the head unit stock, but improve your sound quality and control check out the jl cleansweep, all the benefits of an aftermarket without the hassle 100 percent worth it!
 
its the signal your amps getting from the head unit. its processed in a way to keep the stock speakers from distorting. there may even be some low end filtering goin on.

jl, and mtx and a company called edison i think make a device you put inbetween the stock speakers and the amp and it cleans up and boost the signal. that might be your best solution.

unless your talkin shear spl. if thats the case you just need a bigger woofer.
 
Thanks all! For rock music should I have a sealed or ported box? I listed to Sirius 20 Octane for most of my music fix.
 
For rock, techno anything but rap you definately want sealed. It gives you more precise tighter bass. Make sure the woofer is facing the cab of the vehicle so you don't get a delay and the sound comes through when it should. Also is the box built to the right specs for the sub? That makes a huge difference in sound. With a 10" sub you should get hard hitting tight mid range and upper end bass. There won't be as much low end because of the size of the speaker.
 
For rock, techno anything but rap you definately want sealed. It gives you more precise tighter bass. Make sure the woofer is facing the cab of the vehicle so you don't get a delay and the sound comes through when it should. Also is the box built to the right specs for the sub? That makes a huge difference in sound. With a 10" sub you should get hard hitting tight mid range and upper end bass. There won't be as much low end because of the size of the speaker.

+1 to this. You're going to want a sealed box if that's what you plan to listen to.
 
yes, sealed box has better extension and controll. kick drum mixed with bass guitar can be quite complex and challenging for speakers and a sealed box will help control excursions during these passages.
only thing you lose is output at port resonance. which will only make the bandwith the sub plays in sound narrow.
basically you need a sub/enclosure that plays more freq's in a controlled manner. thats my 2 cents.
 
Can you run an aftermarket sub off the stock bose amplifier?

do you think most subs will even move off the little power it gives? lol.

you will need about 100Wrms to make any sub sound decent. how you wire it impedence wise and in what box is a totally different story.
 
For rock, techno anything but rap you definately want sealed. It gives you more precise tighter bass. Make sure the woofer is facing the cab of the vehicle so you don't get a delay and the sound comes through when it should. Also is the box built to the right specs for the sub? That makes a huge difference in sound. With a 10" sub you should get hard hitting tight mid range and upper end bass. There won't be as much low end because of the size of the speaker.

i would have to disagree with that but still sound travels so fast that i dont think you can distinguish another 3 feet in terms of the millaseconds it will take. but facing the cabin definatly can minimize rattles if done right.
 
Well I know that the stock sub isn't that great because it is an open air.. Wasn't sure if the amp was that strong or not in the first place..

Can the stock amp be replaced with a bigger amp and still keep the bose sounding good or would that throw everything off as well?
 
Well I know that the stock sub isn't that great because it is an open air.. Wasn't sure if the amp was that strong or not in the first place..

Can the stock amp be replaced with a bigger amp and still keep the bose sounding good or would that throw everything off as well?

Infinite baffle is the term.

the amp is decently strong but gets a sorta weak signal. the amp is mounted to the bottom of the basket itself.
replacing the amp may be a bad idea because the sub was not made for high power, it was made for high efficency. it may take a few more watts but i wouldnt expect much.
 
idk if matteres i gotta speed6 and stock stereo system. All i want is better bass so that when i turn up the music loud the bass sounds good and doesnt scare me that stock speakers bass will destroy speakers.

Any suggestions? maybe just add a sub. IS this easy to do? Let me know.Thanks
 
1) the Stock HU sucks. RMS is low, and overall quality sucks, the output to the rears is extremely poor in the non-bose versions.

2) If you want to add some decent mid bass, have a nice (nice meaning you have to spend a little money) set of component speakers installed in the front. Components will give you a little more bass due to have the seperate woofer and tweeter.

3) If you want some good low end bass. Get yourself an Alpine Type R 10 or 12. They can play well with rock or rap and can be loud and clear. All depends on how you want it to sound. If you want to install it yourself and have the know how, the 6 is not a really hard car to add a sub to. Dont want to do it youself? Go to Best Buy or somewhere and they can install it.

4) Vented boxes in a trunk do not sound good. Vented boxes are really only ideal in a cab like and SUV; much more air space. In a trunk vented tends to sound sloppy. Sealed is the way to go for a trunk as long as the box has the air space required for the sub.

5) Infinite baffle sub.... yeah.... just disconnect it.

My 5 cents.
 
I have seen some clean infinite baffle setups with the stock Bose sub in the rear. Someone found an 8" IB sub, made an adaptor ring, and wired it up with an LOC and a 200w RMS amp to it. I don't want to overpower my stereo, but I really like the clean setup and the fact I can install this without losing any room to put things in the trunk (like snowboards :-) ).
 
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