Please help 3 questions - diyAudio
Go Back   Home > Forums > General Interest > Car Audio

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 19th September 2004, 09:22 AM   #1
eXn is offline eXn  United States
diyAudio Member
 
Join Date: Sep 2004
Location: California
Default Please help 3 questions

1. I have an 8" rockford fosgate punch subwoofer that is blown. Is there any way to have that fixed?
2. Does anyone have schematics for a subwoofer?
3. How do I know what connections go where in the wiring harness from the radio to go to the amp?

Im 16 and I want to learn all about car audio. Please give any advice not only for these 3 questions but anything that would be helpful to know. Thank you all so much.
  Reply With Quote
Old 19th September 2004, 10:58 AM   #2
SY is offline SY  United States
diyAudio Moderator
 
SY's Avatar
 
Join Date: Oct 2002
Location: Chicagoland
Blog Entries: 1
1. "Blown" can have many meanings. I'd take the driver to a Rockford dealer and have him take a look and see what can be done. As a diy beginner, you could probably do a surround replacement, but you wouldn't want to try to replace/rewind a voice coil or do a recone. At least, not yet. Gives you something to shoot for.

2. There are probably ten million design plans for car subwoofers floating around the 'Net, of which five million of them can be found by reading some of the stuff in the auto sound forum right here.

3. If you want to really learn about this stuff, and I think it's a GREAT thing for a 16 year old guy to want to learn, get some basic books on loudspeaker design (like some of Weems's books or, when you're ready, Dickason) and specialist books on auto sound (I've seen a few, but just don't remember the titles/authors). Check over on the AudioXpress site- they've got a book or two which might be just what you need.

And I'll move this thread over to the auto sound forum, where there will be no shortage of suggestions.
__________________
You might be screaming "No, no, no" and all they hear is "Who wants cake?" Let me tell you something: They all do. They all want cake.- Wilford Brimley
  Reply With Quote
Old 19th September 2004, 07:52 PM   #3
clayton is offline clayton  United States
diyAudio Member
 
Join Date: Apr 2004
Location: LA.
Default Re: Please help 3 questions

Quote:
Originally posted by eXn
[3. How do I know what connections go where in the wiring harness from the radio to go to the amp? [/B]
What kind of radio & amp do you have(make & model)?
  Reply With Quote
Old 19th September 2004, 10:00 PM   #4
diyAudio Member
 
zagisrule!'s Avatar
 
Join Date: Apr 2004
Location: Edgewood, NM
The amp requires 12V straight from the battery...you will need to run a hefty cable from the + battery terminal to your mounting location, add a fuse holder/fuse, and attach the ground of the amp to the car ground wherever you can get a good connection.

Other connections obviously include the audio signals, which are RCA cables leading from the back of the head unit, connecting to the amplifier inputs. Another wire to run will be the remote turn on, which goes to the wiring harness of the stereo or any other switched low-current 12V supply. You want this 12V line to be 12V only when the car/stereo is on...and it must be 0V when the car is off!

Schematics for subwoofer? They are pretty straight-forward man. There is a coil (or two) and the coil leads to the binding posts. That is all there is to it

As far as fixing the subwoofer, cheaper woofers are not very servicable, you can not really open up the unit and replace individual components, and having a repair done professionally would likely cost more than a new one. If you can get a repair done under warranty that would be cool...but why did it blow? What amp were you running, and what are the symoptoms of the "blown" woofer?






-Matt
17 years old (I am with you man!)
  Reply With Quote
Old 20th September 2004, 04:20 AM   #5
eXn is offline eXn  United States
diyAudio Member
 
Join Date: Sep 2004
Location: California
In reference to question number 3, I was unsure what wires are for what input. Is there a way to tell or do I just need to experiment plugging things in and changing fade/balance to see what it powers?
  Reply With Quote
Old 20th September 2004, 08:31 AM   #6
Konrad is offline Konrad  Norway
diyAudio Member
 
Join Date: Jun 2003
Location: way up north
Nope dont experiment. Read the manual first.
1: Read the manual.
2:Read the manual
3:Read the manual as the input and output markings are usually clearly deskribed there.

maybee you can find somthing here, when finish reading the manuals: http://www.eatel.net/~amptech/elecdisc/caraudio.htm
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Some Quad els57 questions! - Novice Questions! Fanuc Planars & Exotics 13 5th December 2007 09:26 AM
PSU for QSC amp questions rkc7 Parts 5 10th November 2005 05:18 PM
Last questions about this Madmike2 Multi-Way 9 13th June 2005 11:12 PM
Questions, questions, from newb DIYer Phatman91624 Multi-Way 41 3rd August 2002 02:52 AM


New To Site? Need Help?

All times are GMT. The time now is 07:07 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2