component question
Thread Starter
Intermediate
Joined: Aug 2012
Posts: 289
Likes: 28
From: fl
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! 
Lexus Test Driver
Joined: Oct 2010
Posts: 1,212
Likes: 3
From: NC
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?
Thread Starter
Intermediate
Joined: Aug 2012
Posts: 289
Likes: 28
From: fl
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?
Thread Starter
Intermediate
Joined: Aug 2012
Posts: 289
Likes: 28
From: fl
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?
Lexus Test Driver
Joined: Oct 2010
Posts: 1,212
Likes: 3
From: NC
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.
Trending Topics
Thread Starter
Intermediate
Joined: Aug 2012
Posts: 289
Likes: 28
From: fl
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.
ClubLexus Stories
Celebrating Lexus & Toyota from Around the Globe
10 Lexus Bargains That are Cheaper Than a New Toyota RAV4
Joe Kucinski
8 Weirdest Things Lexus Has Ever Built
Verdad Gallardo
10 Lexus Designs That Have Aged Like Fine Wine
Verdad Gallardo
8 Tips for Improving Your Hybrid or Plug-in Hybrid's Efficiency!
Michael S. Palmer
10 Best Lexus Models No One Remembers
Joe Kucinski
TRD Off-Road Premium: Best 2026 4Runner, Except This One Thing
Michael S. Palmer
Top 10 Lexus & Toyotas to Drive Before You Die!
Joe Kucinski
Top 10 Lexus/Toyotas With The LEAST 5-Year Depreciation
Joe Kucinski
Lexus LC500 Convertible Auction: A Preview of Rising Values?
Brett Foote
.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.
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
Thread Starter
Intermediate
Joined: Aug 2012
Posts: 289
Likes: 28
From: fl
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
.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
Thread
Thread Starter
Forum
Replies
Last Post
gennacide
IS - 3rd Gen (2014-present)
38
Jan 1, 2017 04:35 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