i am wanting to get the subhousing from fierostore can i use an aftermarket sub with it and where does it go and can i hook an amp setup with it?

The Fiero Store sub housing is supposed to be identical to the one found in the stock Performance Sound setup. The sub speaker is an oddball 5" which pretty much nobody makes. Rodney Dickman makes a sub for it, I have it in my car and it sound great. Someone on the forum put a larger sub in it, the thread shouldn't be too hard to find. I've ran mine off the stock amp and an aftermarket amp, and both worked. The sub housing mounts up under the dash on the passenger side, to the right of the heater core box.

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1984 Fiero SE

here's the information you need:

https://www.fiero.nl/forum/Forum1/HTML/066389.html

[This message has been edited by PaulJK (edited 07-26-2007).]

I added a larger 5.25 speaker to it and after using all my software for speaker designs on it found that if you cut off 1/2 inch and also lightly stuff the port tube with polyfill and cover the end with a large mesh screen you get a perfect port match on the woofer and bring the cabinet curve way higher to match what the woofer really wants.
I'm using the parts express "better" woofer as listed in the above threads that seems to always be on backorder for 3+ months. but it is so worth it waiting for that speaker.

BTW: the secret trick I used to get an exact volume measurement of the stock woofer enclosure is to fill it with water (plug the port hole) and then measure the amount of water. After that the subwoofer design software was happy to help get things tuned right. with the tube in place and adjusted like I said above, I get a smoother peak around 100hz.

If you want the box to thump really hard you can try to isobarik the box, but that will have the second speaker magnet hanging down int othe passenger footwell.

[This message has been edited by timgray (edited 07-26-2007).]

What amp are you using? that Xtant1.1 is the thread above is about impossible to find...

i'm using and ADS 8 channel with channels 7& 8 bridged mono to the sub - about 100 watts i think.

Have you considered putting a low profile sub wear the glove box is (by your right elbow).There are a few threads on the subject.

does anyone have a pic of the factory sub installed i looked in my car and dont see how it would fit unless i already have it and didnt know it it think it just the air duct

On the right pasenger side,you will need a mirror to see the grill or cover.

quote Originally posted by fierofuzz: does anyone have a pic of the factory sub installed i looked in my car and dont see how it would fit unless i already have it and didnt know it it think it just the air duct

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3.4L S/C 87 GT www.fierosound.com
2002/2003/2004 World of Wheels Winner &
Multiple IASCA Stereo Award Winner

[This message has been edited by fierosound (edited 07-27-2007).]

Can you remove it without removing the dash? ( the enclosure not the sub)