where to t/s parameters for stock speaker

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=127726
Printed Date: May 02, 2024 at 9:02 AM

Topic: where to t/s parameters for stock speaker

Posted By: kp5259
Subject: where to t/s parameters for stock speaker
Date Posted: June 23, 2011 at 7:43 PM

I have set of Bose speakers that came stock in a 1996 Oldsmobile Aurora. I was wondering where(if) I could find the parameters for these speakers...two of them are 6.5" door speakers and one is a 6.5" "sub-woofer". I am pretty sure all of these speakers are 1ohm and seem to actually be pretty high quality for old stock speakers.

I actually might try to build a sub for my computer out of the sub-woofer...just interested in messing around with it for more of an experimental type of deal more than anything.

I also like to jump on any opportunity possible to use my design software(Bass Box 6)....thanks Kris

Replies:

Posted By: haemphyst
Date Posted: June 23, 2011 at 10:12 PM

1: Not gonna find them... You'll have to spec them yourself. The reason for this is my point #2.

2: (They're .5-ohms.) The Bose systems used EARLY technology, high-current Class D amplifiers (I have a pair and their associated 4" woofers, still in the vented enclosures, from a 96 'Vette). They had EQ curves all built in for the car in which they were installed. The amplifiers and drivers were all the same across the board, the ONLY difference was the EQ curves.

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It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

Posted By: kp5259
Date Posted: June 24, 2011 at 7:15 AM

damn!! .5ohm!!...I guess that's why my head unit kept overheating a few years back when I was first installing the system in this car...I figured I could just bypass all the amp/EQs and just run new speaker wires to my stock speakers while I saved up for new speakers...this turned out to be a bad idea. Head unit would start clipping after about 2min and actually melted a bunch of wires behind it!!! hahaha, lets just say I quickly learned about the low ohms of the stock Bose speakers... but I had no idea they were that low!

Oh by the way, thanks haemphyst for bearing with me on some of these "beginner" topics. I have been reading these audio sites for a couple years now and have not actually made an account till just recently. I decided on the12volt.com because of the high probability of dealing with members like yourself. Thank you

Posted By: haemphyst
Date Posted: June 24, 2011 at 9:41 AM

Glad I could help! Welcome to the12volt! :)

Those were tricky systems. The first time I saw one (worked on one) we were doing much the same thing! Nobody wanted to tear into the car to replace the speakers, and we kept doing pretty much the same thing as you, ASSUMING that the speakers were all 4-ohm! :P The amps were EASY to get to, we just bypassed 'em, and plugged the HU in!

We all found out after frying three head units, and a QUICK test with a multimeter, that GM was doing something funky... This was in a Cadillac Seville, I believe. Hated those cars... Taught us all a very valuable lesson, though: Measure twice, cut once. (Not really sure why I chose that adage... posted_image

)

Anyway, welcome aboard!

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It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."