Subwoofer Upgrade 2010 Gen 3 Lexus RX450H
#31
You need to use the Skar Audio subwoofer linked several posts up as it has 2 voice coils (same as the stock sub) which allows use of the 4 wires. It is also on Sale for $63.99!
https://www.skaraudio.com/products/v...-car-subwoofer
The Earthquake SWS subwoofer from Amazon won't work as it is single voice coil and can only accept 2 wires. Return it and get the Skar.
https://www.skaraudio.com/products/v...-car-subwoofer
The Earthquake SWS subwoofer from Amazon won't work as it is single voice coil and can only accept 2 wires. Return it and get the Skar.
Which wires go to which terminals on the skar?
#32
The stock sub should (hopefully) have the wire terminals marked + and --. And so should the Skar.
Note which wire goes to which terminal and note the pairs of wires for each pair of terminals and keep them separate.
The person who has done this install may have better info, but that is how I would do it.
FYI positive wires are often the one with a stripe.
Note how he modified the stock speaker box with a dremel to make the Skar fit and then used foam backer rod and foam pieces to stop vibrations as shown in the photos above.
Note which wire goes to which terminal and note the pairs of wires for each pair of terminals and keep them separate.
The person who has done this install may have better info, but that is how I would do it.
FYI positive wires are often the one with a stripe.
Note how he modified the stock speaker box with a dremel to make the Skar fit and then used foam backer rod and foam pieces to stop vibrations as shown in the photos above.
#33
The stock sub should (hopefully) have the wire terminals marked + and --. And so should the Skar.
Note which wire goes to which terminal and note the pairs of wires for each pair of terminals and keep them separate.
The person who has done this install may have better info, but that is how I would do it.
FYI positive wires are often the one with a stripe.
Note how he modified the stock speaker box with a dremel to make the Skar fit and then used foam backer rod and foam pieces to stop vibrations as shown in the photos above.
Note which wire goes to which terminal and note the pairs of wires for each pair of terminals and keep them separate.
The person who has done this install may have better info, but that is how I would do it.
FYI positive wires are often the one with a stripe.
Note how he modified the stock speaker box with a dremel to make the Skar fit and then used foam backer rod and foam pieces to stop vibrations as shown in the photos above.
#34
You need to use the Skar Audio subwoofer linked several posts up as it has 2 voice coils (same as the stock sub) which allows use of the 4 wires. It is also on Sale for $63.99!
https://www.skaraudio.com/products/v...-car-subwoofer
The Earthquake SWS subwoofer from Amazon won't work as it is single voice coil and can only accept 2 wires. Return it and get the Skar.
https://www.skaraudio.com/products/v...-car-subwoofer
The Earthquake SWS subwoofer from Amazon won't work as it is single voice coil and can only accept 2 wires. Return it and get the Skar.
#35
I bought the exact same subwoofer earthquake sws 8xi and just want to replace the stock sub as this is a 150w 300wmax subwoofer that does not need as much power to drive it. Hoping the stock system is enough especially at 2ohms. What wires do I hook up to the speaker if there are a set of 4?
To be honest you will need an aftermarket amp to power any 8in subwoofer replacement since the stock system only put out about 300 watts max for the 12 speaker system and maybe about 400 watts max for the 15 speaker setup. Therefore the subwoofer output is probably no more than about 50w-70w rms. Not enough power for an quality aftermarket subwoofer.
Last edited by carguy75; 12-29-22 at 09:26 AM.
#36
tobusy4 - Have you experience taking apart a car interior? Do you have trim removal tools? Do you have a drill with grinding attachments or a dremel or files etc which will be needed to modify the sub box for the Skar as indicated above. Plus foam backer rod and loose foam which you can get at Lowes or Home Depot.
The sub is behind the left rear quarter panel in the cargo area. You need to unscrew some stuff, remove some tabs to find some screws and pull (hard) some panels out. You need to remove a lot of stuff to get at it. You have to remove the floor covers, spare tire etc. Do fold the rear seats down.
A car stereo shop can do the job of replacing the sub and adding an amp rather quickly as they know what to do. Making this a learning experiment is setting yourself up for frustration. Having said that here are some links to the few prior posts that show interior removal and some have photos. Good Luck.
https://www.clublexus.com/forums/rx-...this-rx-3.html
See post 14 in the link below for step by step removal instructions.
https://www.clublexus.com/forums/rx-...bwoofer-2.html
The sub is behind the left rear quarter panel in the cargo area. You need to unscrew some stuff, remove some tabs to find some screws and pull (hard) some panels out. You need to remove a lot of stuff to get at it. You have to remove the floor covers, spare tire etc. Do fold the rear seats down.
A car stereo shop can do the job of replacing the sub and adding an amp rather quickly as they know what to do. Making this a learning experiment is setting yourself up for frustration. Having said that here are some links to the few prior posts that show interior removal and some have photos. Good Luck.
https://www.clublexus.com/forums/rx-...this-rx-3.html
See post 14 in the link below for step by step removal instructions.
https://www.clublexus.com/forums/rx-...bwoofer-2.html
#37
Yes I have taken apart interiors before, and I have done wiring before. I have all the tools. I can run the amp line for a spare amp and hook everything up but just really dont want to spend the extra time and $ here as I am only looking for a 35 to 45% improvement in base over stock at low to mid volume levels. I think the premium sound system is pretty good, just needs a little extra base. I probably will end up running a small amp down the road.
Just wanted to see the step my step process of getting to that sub box if someone had it before, it saves time, Thanks for posting the link.
Just wanted to see the step my step process of getting to that sub box if someone had it before, it saves time, Thanks for posting the link.
#38
Yes I have taken apart interiors before, and I have done wiring before. I have all the tools. I can run the amp line for a spare amp and hook everything up but just really dont want to spend the extra time and $ here as I am only looking for a 35 to 45% improvement in base over stock at low to mid volume levels. I think the premium sound system is pretty good, just needs a little extra base. I probably will end up running a small amp down the road.
Just wanted to see the step my step process of getting to that sub box if someone had it before, it saves time, Thanks for posting the link.
Just wanted to see the step my step process of getting to that sub box if someone had it before, it saves time, Thanks for posting the link.
The Kicker Key 500 amp is very powerful for its size.
I like the stock 12 speaker sound quality,but want a deeper bass response. I will try the Earthquake SWS low profile speaker to get better bass without reducing my cargo space with a add-on subwoofer box .
The Earthquake SWS speaker review. It puts out some deep space for a shallow subwoofer and "should" fit in the stock sub enclosure without much modification if any.
Last edited by carguy75; 12-30-22 at 10:21 AM.
#39
I should have kept the earthquake subwoofer as I have only 2 wires connecting to the stock subwoofer, and remember I am still using the stock amp and wiring. So now I have the skar with dual voice coil and have to run it in series or parallel? I am assuming that the factory hot is the red wire with the white stripe and I am guessing to run it in parallel as the skar diagram states below?
#40
So if you trace further down to the sub box plug in there are 4 wires which are run from the amp to the sub box. Then those 4 wires are broken down to 2 to connect to the speaker box and then run up to the speaker. I decided to do this the right way and bought a skar 350.1D amp to power the 8" sub in the stock enclosure, Going to use a LOC off the 4 speaker wires to convert to the RCA signal for the amp. Does anyone happen to know which of these colors are right and left pairs and what is plus and what is negative? It's a 2013 RX350 premium sound (not ML). So far assuming Left + is black, Left - is yellow, Right plus is red, and Right - is white. if anyone knows if this is correct or not let me know?
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Mayur Patel
Lexus Audio, Video, Security & Electronics
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08-30-01 05:19 PM