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Stereo Upgrade

 
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vinnie55
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Joined: 12 May 2010
Posts: 190
Location: Adelaide

PostPosted: Sun Feb 27, 2011 1:30 am    Post subject: Stereo Upgrade Reply with quote

SO.

Stock stereo just dosn't cut it.

Removed door card and mounting bracket




The holes on the new speakers don't line up.


solution - Drill press


Response 6'' kevlar cone, tweeter and crossover.


Selectable Tweeter attenuation (hard wired only)


Wiering


THANKYOU MR ISUZU FOR LEAVING ROOM FOR A CROSSOVER!!!!!


Before


After


Glued tweeter above cig lighter


Final Product
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IZU069
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Joined: 14 Sep 2005
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Location: Melbourne (Orstralia)

PostPosted: Sun Feb 27, 2011 7:18 am    Post subject: Reply with quote

Show off!

Drill-press indeed. I have enough troubles finding a suitable drill bit! (And usually try to burn a hole through with my soldering iron instead. I'm still very trying...)


And after all these years, any new speaker would probably be a improvement. (See the old stained cone - probably lost flexibility etc.)


But real nice to see how an upgrade is done, and should be done, and modernised to take advantage of modern hardware etc.
(Though I'd consider mounting the crossover more accessibly - maybe under the dash? In part for easier tuning (if applicable); in part foe more speaker "box" volume. But it may b you have it in the only cavity available...?
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vinnie55
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Joined: 12 May 2010
Posts: 190
Location: Adelaide

PostPosted: Sun Feb 27, 2011 11:05 am    Post subject: Reply with quote

hahaha nice, slodering iron drilling.

Yeah, the kevlar cones on these are pretty rigid. And immidiately I tested with the graphic EQ and they have more headroom before clipping and extend down as far as I want them to. If you push 125hz right up you will clip them, ditto with 60hz. However, I'm going to wire a sub in soon, so I can then set the crossover point of the sub (the amp has hi pass and lo pass filters) to about 150hz.

I actually used the same speakers in the fuego and I mounted the crossovers in the footwell.....it was a disaster. Yeah they were accessible but if anyone else got into my car they would kick them off...

With this setup I am a tad concerned about the connections coming out, so i screwed them in uber tight.
They wont need tuning, I leave the tweeters on the maximum reduction because they are much closer to my ear than the woofers.
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eyecon
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Location: Australia's Capital

PostPosted: Sun Feb 27, 2011 1:42 pm    Post subject: Reply with quote

Nice job vinnie. I might pick your brains when the time comes
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eyecon
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PostPosted: Mon Feb 28, 2011 9:07 am    Post subject: Reply with quote

Out of interest have you changed the head unit over, and did you fnd up getting that CD pin connector/adaptor from eBay?
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vinnie55
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Posts: 190
Location: Adelaide

PostPosted: Mon Feb 28, 2011 5:36 pm    Post subject: Reply with quote

Ah. I've just started that process.
I havn't bought that addaptor, and the reason for that is I want to keep the original graphic EQ.
That addaptor is designed to go from the isuzu plug on the car end (that normally goes to the graphic) to your replacement headunit. therefore totally bypassing the graphic.

-if anyone can tell me what the 5 pin din plugs on the back of the stock head unit do I'll be very gratefull
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eyecon
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PostPosted: Mon Feb 28, 2011 9:45 pm    Post subject: Reply with quote

Yeah I'd like to keep the Graphic EQ too. It's so old school but still a great unit. Hope you get an answer re the plug issue.

Last edited by eyecon on Wed Mar 02, 2011 8:53 am; edited 1 time in total
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vinnie55
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Location: Adelaide

PostPosted: Tue Mar 01, 2011 10:25 pm    Post subject: Reply with quote

I'm now buying a workshop manual off this forum. hoping that has it in it....
Tho it would make sense if it didn't
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wedgenut
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Joined: 04 Jul 2005
Posts: 1636
Location: Hibiscus Coast NZ

PostPosted: Wed Mar 02, 2011 3:43 pm    Post subject: Reply with quote

Quote:
if anyone can tell me what the 5 pin din plugs on the back of the stock head unit do I'll be very gratefull


Radionautics aint my bag and I have not seen the later model aussie set up, what I can tell you is that the earlier (up until 1987), even JDM versions that only had an AM/FM tuner were linked to a tape deck by a five pin din plug. On these early models the R/L balance operated of the radio and the fader worked off the tape deck. Maybe it is a hangover, after all even in the late 80's early 90's tape players were still being fitted to some cars. I still have a couple of those tape decks if your grandma wants to listen to Bing Crosby while tooling around town with her hat on backwards Gives thy a finger
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Palos
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Joined: 03 Dec 2008
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PostPosted: Wed Feb 08, 2012 2:39 am    Post subject: Reply with quote

Haha, nice work.
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