SQ dudes

[Buck 5,000+ posts]

I don't want rear fill in my Exploder (no rear seats), would it be worth the money to have a midbass in rear doors?

Edit: What about kick panels?

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[whitedragon551 5,000+ posts]

I wouldnt do it. I was contemplating doing something similar in my 08 Caliber to save hatch space. I was going to run a set of front components active from my 9887 and run a single 6" sub in each rear door and the idea got turned down quickly from a SQ stand point.

I was told that the woofers wouldnt be loud enough, the FS would be to high to get a good roll off, to many vibrations in the door, and low XMax. Of course the midbass would be similar yet different on the playable frequencies. I would still expect a negative impact from an SQ standpoint though.

 

[Cruzer 10+ year member]

if i were to do rear fill, it would only be for mid bass. but if u do your front stage right, u wont need it. plus 90% of people on here run too loud of a sub stage to hear mid bass in the rear imo

 

[gunz4me2 10+ year member]

I did something similar in my wife's Mazda tribute when I nixed her factory system with a complete aftermarket setup. I ended up putting the rear doors back to stock and disconnecting them because running woofers there created more problems than I initially anticipated. It seemed like a good idea until I actually did it.

 

[audioholic 5,000+ posts]

Midbass is localizable, your ears can recognize where the sound is coming from. You know the old saying that subbass is omnidirectional? Well, midbass isn't. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif So, midbass should be in the front stage, not the rear.

Proper rear fill is bandpassed, attenuated, and delayed. When done correctly, rear fill can be a positive on over all acoustic performance of your stereo. But if done incorrectly, which is the vast majority of the time, it will hurt performance, mainly by shifting the soundstage behind the listener.

 

[Buck 5,000+ posts]

So would a midbass in the kick panels be worth it?

 

[Cruzer 10+ year member]

imo it depends on your goals. im using winisd to compare, so if its wrong, im sorry

if u want the mid to play low, like 60hz below louder, IB in the door seems to be better choice. even with less power it will play ~60, 65hz and lower louder than a small sealed box.

but if u want more mid bass, say 75/80hz - 300hz, a small sealed box like .2-.4 seems to give up the low end extension and increase the spl of the mid frequencies

 

[Buck 5,000+ posts]

imo it depends on your goals. im using winisd to compare, so if its wrong, im sorry
if u want the mid to play low, like 60hz below louder, IB in the door seems to be better choice. even with less power it will play ~60, 65hz and lower louder than a small sealed box.

but if u want more mid bass, say 75/80hz - 300hz, a small sealed box like .2-.4 seems to give up the low end extension and increase the spl of the mid frequencies

I don't need to play below 60 hz, I have 2 18"s for that //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[Cruzer 10+ year member]

then depends on how much of a pain it is to fit enclosures in the kicks. then would that work be worth gaining a couple dbs in the mid bass area?

 

[Buck 5,000+ posts]

then depends on how much of a pain it is to fit enclosures in the kicks. then would that work be worth gaining a couple dbs in the mid bass area?

Idk that's why I'm talking about it. If I knew how to fiberglass I would have all of it in the door, but I don't want to get into that.

 

[Buck 5,000+ posts]

bump

 

[Buck 5,000+ posts]

Bump

 

[okiedokie 10+ year member]

you have 2-18's & you are asking abou SQ????

with rear fill midbass.

Interesting

most SQ-SQL guys dont have 2-18's pounding in there head with a small front stage.

If you want more from your front stage you can try 8inch pods & yes learn how to fiberglass.

it a hobby right, why not have some fun & learn new things.

 

[audioholic 5,000+ posts]

I agree, with a pair of 18's, if you truly want SQ then the first obstacle you will have to overcome is system balance. Even with a strong 3-way front stage, you are almost definitely going to need to turn your subs down.

But ignoring that point, because you probably will too. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif ... the best layout for a 3-way front stage is tweet and midrange in the kicks, midbass in the doors. Like Cruzer was saying, IB in the doors is going to be the most efficient way of getting low freq extension out of your midbass drivers. Most car audio mids/midbass drivers are designed with IB in mind, knowing most cars' factor mounting location is the doors so most of their speakers will also be mounted there. Trying to cram a mid/midbass into a tiny kick panel enclosure usually hurts midbass performance. The other reason to put the midbass in the doors is because the midrange and tweeter are more sensitive to unequal pathlengths than are speakers playing midbass. So its more beneficially, acoustically, to put the midrange and tweet in the kick, not the midbass. Beaming is another reason, especially if you are unable/unwilling to build fiberglass door panels.

 

[denim 5,000+ posts]

So would a midbass in the kick panels be worth it?

If you can fit them with your selected drivers, go for it. The more of the frequency range you can have in front of you, the better.