Notices
Lexus Audio, Video, Security & Electronics
Sponsored by:

component question

Thread Tools
 
Search this Thread
 
Old Aug 17, 2012 | 12:44 PM
  #1  
Bobster999's Avatar
Bobster999
Thread Starter
Intermediate
10 Year Member
Liked
Loved
 
Joined: Aug 2012
Posts: 289
Likes: 27
From: fl
Default component question

Hi, I want to use components in the doors. Can I just mount the sub woofers there and install the tweets in the factory locations using the factory wiring? or do i need to use the cross over type box that comes with the component system and run the wires from that? Thanks!
Reply
Old Aug 17, 2012 | 03:33 PM
  #2  
rome58's Avatar
rome58
Rookie
 
Joined: Apr 2012
Posts: 65
Likes: 0
From: CA
Default

You use your wires from the power source into the x-overs then run wiring from the x-overs to the woofers and tweets. I would definitely use the x-overs though

Last edited by rome58; Aug 17, 2012 at 03:45 PM.
Reply
Old Aug 17, 2012 | 08:01 PM
  #3  
Slammer1's Avatar
Slammer1
Lexus Test Driver
 
Joined: Oct 2010
Posts: 1,212
Likes: 3
From: NC
Default

Originally Posted by rome58
You use your wires from the power source into the x-overs then run wiring from the x-overs to the woofers and tweets. I would definitely use the x-overs though
X2!
Your factory system is likely crossed over within your amp and no way to tell what that is at. You want to use a signal that is full range, then run that to the crossovers that come with your components. You didn't specify your vehicle, but in my IS, I put the Hertz woofers in the woofer hole and mounted the tweets where the 3" mid drivers used to be. My factory tweets are still in the pods at the top of the door panel but aren't powered. What kind of car and what components are you putting in?
Reply
Old Aug 17, 2012 | 08:09 PM
  #4  
Bobster999's Avatar
Bobster999
Thread Starter
Intermediate
10 Year Member
Liked
Loved
 
Joined: Aug 2012
Posts: 289
Likes: 27
From: fl
Default

Its a 99 RX300. I want to install the new tweets in the factory location top corners of dash. Looking at the wiring diagram, the tweets are connected in parallel with the door speakers. Im not sure but the door speakers may be sub woofers or coaxials but i doubt they would have tweets in the doors and the upper dash?
Reply
Old Aug 17, 2012 | 09:02 PM
  #5  
Slammer1's Avatar
Slammer1
Lexus Test Driver
 
Joined: Oct 2010
Posts: 1,212
Likes: 3
From: NC
Default

Shouldn't be. Usually the only thing you find in the dash is a center channel speaker, typically in the middle. Factory tweets are almost always in the doors or A pillars.
Reply
Old Aug 17, 2012 | 09:11 PM
  #6  
Bobster999's Avatar
Bobster999
Thread Starter
Intermediate
10 Year Member
Liked
Loved
 
Joined: Aug 2012
Posts: 289
Likes: 27
From: fl
Default

Originally Posted by Slammer1
Shouldn't be. Usually the only thing you find in the dash is a center channel speaker, typically in the middle. Factory tweets are almost always in the doors or A pillars.
well theyre at the bottom of the A pillar or edge of the dash however you frame it. Im not sure exactly what the crossover does when wiring the tweets. But the factory already has the in parallel with the door speakers so im not sure using the crossover box is needed?
Reply
Old Aug 17, 2012 | 09:40 PM
  #7  
Slammer1's Avatar
Slammer1
Lexus Test Driver
 
Joined: Oct 2010
Posts: 1,212
Likes: 3
From: NC
Default

You are gonna need to get a hold of a wiring schematic to be sure. As for the crossover that comes with the components, it sends the lower frequencies to the woofer and only the higher frequencies to the tweets. That is why you want to run these off of source that will give you full range. The crossover that comes with your components will then send the correct frequency to each driver.
Reply
Old Aug 17, 2012 | 09:48 PM
  #8  
Bobster999's Avatar
Bobster999
Thread Starter
Intermediate
10 Year Member
Liked
Loved
 
Joined: Aug 2012
Posts: 289
Likes: 27
From: fl
Default

I actually have the wiring diagram. Thats how i was able to tell you that the tweets and woofers are wired in parallel from the head unit. I would think that the woofer and the tweet would automatically only produce the sound within their own frequency and thats why its wired that way. I just dont know for sure. Anyway, thanks for trying to help.
Reply
Old Aug 18, 2012 | 11:24 AM
  #9  
Big Mack's Avatar
Big Mack
Lexus Champion
20 Year Member
iTrader: (1)
 
Joined: May 2004
Posts: 2,673
Likes: 0
From: Arizona
Cool

Originally Posted by Bobster999
Im not sure but the door speakers may be sub woofers or coaxials but i doubt they would have tweets in the doors and the upper dash?
1) They're not subwoofers. If anything, they're woofers. Subwoofers are much larger and only play under @ 150 Hz. If the speaker in the door does not have a tweeter on it, it's not a coaxial, either. It's a woofer. That's why you have separate tweeters .

Originally Posted by Bobster999
I actually have the wiring diagram. Thats how i was able to tell you that the tweets and woofers are wired in parallel from the head unit. I would think that the woofer and the tweet would automatically only produce the sound within their own frequency and thats why its wired that way. I just dont know for sure. Anyway, thanks for trying to help.
It's not that they only play the sound within their own frequency range, because tweeters will be damaged trying to play too low.

While they may be wired in parallel from the output, there is a crossover on the tweeter to protect it. It may be basic, but a capacitor is still a crossover (albeit only @ 6 dB).

As for how you can use your speakers, you definitely want to use the crossovers to do exactly what the factory crossover does - split the signal between the woofer and the tweeter. It will give you a 12 dB variance at the crossover point and allow your speakers to operate more efficiently, thus allowing you to use less power to deliver fuller sound.

Since you have the wiring diagram and you say it's wired in parallel, it should be fairly straightforward. Wire from the deck goes into the input side of the crossover, then you'll need to get wires from the crossover to the woofer and tweeter from their respective terminals. Since there is already a wire snaked to the tweeter location, you can reuse it.

Big Mack
Reply
Old Aug 18, 2012 | 12:03 PM
  #10  
Bobster999's Avatar
Bobster999
Thread Starter
Intermediate
10 Year Member
Liked
Loved
 
Joined: Aug 2012
Posts: 289
Likes: 27
From: fl
Default

Originally Posted by Big Mack
1) They're not subwoofers. If anything, they're woofers. Subwoofers are much larger and only play under @ 150 Hz. If the speaker in the door does not have a tweeter on it, it's not a coaxial, either. It's a woofer. That's why you have separate tweeters .



It's not that they only play the sound within their own frequency range, because tweeters will be damaged trying to play too low.

While they may be wired in parallel from the output, there is a crossover on the tweeter to protect it. It may be basic, but a capacitor is still a crossover (albeit only @ 6 dB).

As for how you can use your speakers, you definitely want to use the crossovers to do exactly what the factory crossover does - split the signal between the woofer and the tweeter. It will give you a 12 dB variance at the crossover point and allow your speakers to operate more efficiently, thus allowing you to use less power to deliver fuller sound.

Since you have the wiring diagram and you say it's wired in parallel, it should be fairly straightforward. Wire from the deck goes into the input side of the crossover, then you'll need to get wires from the crossover to the woofer and tweeter from their respective terminals. Since there is already a wire snaked to the tweeter location, you can reuse it.

Big Mack
Thank you Big Mack that was very helpful...
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
gennacide
IS - 3rd Gen (2014-present)
38
Jan 1, 2017 04:35 PM
shaggy726
Lexus Audio, Video, Security & Electronics
6
Sep 14, 2012 08:54 AM
kpkim01
SC - 1st Gen (1992-2000)
14
Apr 16, 2010 10:23 PM
SC3001
Lexus Audio, Video, Security & Electronics
3
Jun 14, 2009 10:31 AM
Lex*Toy
Lexus Audio, Video, Security & Electronics
2
May 25, 2007 04:59 PM




All times are GMT -7. The time now is 01:53 AM.