[here are those pics of my speaker install, i know they are cheap speakers and i could have done a better job on installing them but it gives u the idea, the green is the mounts i made, the speakers just sit on those they aren't bolted into them, the red shows where the other side rests, i am probably going to make some brackets to hold the other side, but they stay in place how they are, they aren't goin anywhere, you could also probably use your speaker grills if your worried about the speaker hitting the dash but mine doesn't, and getting them underneath the dash is really easy just tilt them sideways
sounds TONS better than those 4x10's
hope this helps, Travis]
I will likely use a version of this idea as I have a dash cover. Hopefully it'll help others out there also.
------------------ BLADE '86SE Engine rblt by Jasper (Going V8 in 2004..Hopefully) Hypertech Chip Low-temp Fan Switch Low-temp Thermostat Grand Am rear brakes 215/45-17 front, 235/45-17 rear Falken Ziex ZE-502
Yes, I'm quite curious about the 6x9's myself I'm ready to toss new speakers in mine and really have no love for 4x10, I can live with 4x6 plates but 6x9's intrigue me.
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10:05 AM
Apr 13th, 2004
Dropzone Member
Posts: 185 From: Fayetteville, NC Registered: Oct 2003
Mmmm, maybe if the dash was removed from the car and speakers mounted in, then reinstall the dash... or cut on the dash to fit the speaker in and then use the grill covers the speaker makers provide.... Now, how was the 6.5" speaker manuevered into position? Just tilted the speaker and worked it in?? Was considering moving my new 4x10s from my '87, sell the '87 w/ the factory 4x10s from my '88, and install the new 4x10s into my '88, but I like the 6.5" or the 6x9 even better....
Hint: The entire dash and center console must be removed. Speakers are installed from underneath the dash. I made special brakets to hold the two motor structures together in a "back to back" arrangement. Use the search function in the old files to see many pictures and people how have installed 6" x 9" speakers in the dash. There is an excellant article published some three to four years ago.
I wonder if they would screw with the subwoofer tube
couldn't tell ya i don't have the factory sub but theres nothin in the way at all on mine
and to get the speakers in yea all you had to do was tilt em sideways and they fit right in, i was gonna go with the 6x9's also but this was WAY easier and with a sub added to this it'll be all i need
o and it sounds like you guys think that you can't put the factory speaker covers back on but you can, the speaker covers i was talking about were the ones that came with the speakers
[This message has been edited by rims05 (edited 04-13-2004).]
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10:54 PM
tednelson83 Member
Posts: 1993 From: Santa Clarita, California, USA Registered: Jul 2002
i installed 6x9's in the dash of my 85 muchin the same way as the 6.5's pictured above, and it works great! they sound great.
------------------ 1985 Pontiac Fiero 2.5 SE, 218,000 miles and still runing!!! more pics of my 85 can be found here 1987 Pontiac Fiero GT, 134,000 miles! She's alive finaly! 1987 Pontiac Fiero 2.8 SE, 54,000 miles :( with frame damage :damon: <- Doomed unless someone has a really cheep frame in so. callifornia! soon to become a camper/trailer!
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11:48 PM
PFF
System Bot
Apr 14th, 2004
Dropzone Member
Posts: 185 From: Fayetteville, NC Registered: Oct 2003
Sooo, for all you people installing 6x9 and 6.5 in the dash, how did you seal up the enclosure/dash/speaker compartment? I'm not interested in installing my 4x10s into my Fiero after hearing a side-by-side comparison of 4x10 to 6.5. What is needed to get the best sound out of these 6.5s?
I was in the archives and came across someone who placed some foam type liner under the speaker to seal it up a little and to capture the sound. I wished I had saved it. I think it was Orief. I'll search and see if I can find it again.
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04:34 PM
Blacktree Member
Posts: 20770 From: Central Florida Registered: Dec 2001
It shouldn't be very difficult to make a plate (1/4" plywood?) to go between the dash and speaker. The foam liner that Blade_69 mentioned should improve sound quality even more. You can get the foam liners from Crutchfield. LINK
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09:10 PM
Apr 22nd, 2004
Dropzone Member
Posts: 185 From: Fayetteville, NC Registered: Oct 2003
I highly doubt that it would matter if the gaps are closed. Bass will still be produced. Fiero dash speakers are 'free air' style from the factory. There's nothing under the dash to act as enclosure. No air pressure would be created because both top and bottom of the speakers are exposed to the same air space.
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01:18 PM
Blacktree Member
Posts: 20770 From: Central Florida Registered: Dec 2001
Blade_69 Unless you close up those gaps on the sides, you'll get no bass.
quote
Reply from Dropzone:
Is that true for ALL speakers, or just for speakers that are designed to be in an enclosure?
As AnimalGT noted, there are speakers designed for "free air" applications. Although, most of the aftermarket speakers you find will not be designed for free air use. You'll need a baffle (and preferrably an enclosure) to get optimal sound from them. Also, there are some speakers that have sealed baskets. The speaker basket basically becomes the enclosure. From what I've seen, this type of speaker usually has pathetic frequency response.
[This message has been edited by Blacktree (edited 04-22-2004).]
Contrary, the speakers work as "infinite baffle" in the Fiero dash, as the wavelength of the bass notes is shorter than the distance from the back of the speaker around the bottom of the dash back to the front of the speaker. With the openings to either side of the speaker wavelengths that are as short as a quarter inch will be canceled ie sound will suck w/out a baffle board end of story, "physics rules all".
[This message has been edited by gt88norm (edited 04-22-2004).]
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08:03 PM
fieroman87 Member
Posts: 647 From: Lancaster, PA Registered: Nov 2003
PICS!!!! PICS!!!! PICS!!!! You know you can't come on here and say that and not show PICS!!!!
