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Factory woofer replacement

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Old Apr 6, 2014 | 03:28 PM
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Default Factory woofer replacement

The woofer in my RX is blown and I'm looking for a replacement. It's 4" component speaker with dual 2-ohm coils. About 2.25" deep.

I understand the option of fitting an aftermarket woofer but would like to replace this irrespective of additional bass.

Thanks!

Factory woofer replacement-2yhftyd.jpg

Factory woofer replacement-clfkah7.jpg
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Old Apr 6, 2014 | 03:46 PM
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Wow, I had no idea that thing was a 4 inch driver. I figured it was 5 or 6 inches at least.. Well, I guess you could find something here;
https://www.parts-express.com/
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Old Apr 8, 2014 | 08:28 AM
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What was the location of this speaker? Front door, rear door? It's not the subwoofer, is it (they are usually the dual voice coil components)?
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Old Apr 8, 2014 | 02:00 PM
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Originally Posted by sktn77a
What was the location of this speaker? Front door, rear door? It's not the subwoofer, is it (they are usually the dual voice coil components)?
It is the sub--it's fitted inside a plastic enclosure under the passenger seat.

I've determined that it's not worth replacing; rather, it makes more sense to install an aftermarket amp and subwoofer in the trunk (or maybe a flat panel-style sub under the passenger seat), and disconnect this one altogether.
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Old Apr 8, 2014 | 02:54 PM
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Originally Posted by yakev724
It is the sub--it's fitted inside a plastic enclosure under the passenger seat.

I've determined that it's not worth replacing; rather, it makes more sense to install an aftermarket amp and subwoofer in the trunk (or maybe a flat panel-style sub under the passenger seat), and disconnect this one altogether.
Now you will discover how much specialized Lexus audio system is.

Salim
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Old Apr 9, 2014 | 03:54 PM
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Wow, never realized our "subwoofer" was a 4 incher!
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Old Jan 31, 2016 | 08:07 AM
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Does anyone replace this 4" subwoofer located under the passenger seat?

Mine never did much, It made sound, but I would have to put my ear nearby to hear it, rather than be obvious like a subwoofer should be when the sound is up.

I recently took it out, - and when I inspect the box, there is a lot of molded plastic, screws, and engineering that went into producing this subwoofer. It seems like it a bad design, that never did much for the effort involved. Is there a way to get it work? The discussion seems to mostly be, that its not worth bothering with.

Last edited by Class; Jan 31, 2016 at 08:11 AM.
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Old Jan 31, 2016 | 09:46 AM
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I am not an audiophile, but instead of ear, feel the sound with hand for a sub. It is all in the enclosure porting/ducting/or_lack_thereof.

To answer your question .. I have not removed front passenger seat. My knowledge is limited to the impact of the sub under the seat ,,,,, you can't raise/lower passenger seat.

Salim
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Old Jan 31, 2016 | 12:15 PM
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Originally Posted by Class
Does anyone replace this 4" subwoofer located under the passenger seat?

Mine never did much, It made sound, but I would have to put my ear nearby to hear it, rather than be obvious like a subwoofer should be when the sound is up.

I recently took it out, - and when I inspect the box, there is a lot of molded plastic, screws, and engineering that went into producing this subwoofer. It seems like it a bad design, that never did much for the effort involved. Is there a way to get it work? The discussion seems to mostly be, that its not worth bothering with.
Just wondering; how hard was it to take out if it was "buried" under the right front passenger seat? I only want to know in case i ever need to access mine for some reason. also; if one decides to take the old one out; and replace it can you put a bigger aftermarket sub in the same mounting location?
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Old Feb 4, 2016 | 03:49 PM
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Default It took just a few minutes to remove.

Its held in by four bolts, two on readily accessible tabs, front and back





I had to unbolt the seats as well, which are also held in by four bolts, two up front and two behind. - have to remove the plastic trim from the seat rails to get to them.

There doesn't appear to be enough space to put a different style woofer under the seat. Reading the forum, it seems like the location of choice is in the rear location for the spare tire. It also requires a power amp. I don't want to go that far.

As a reference, the factory sub-woofer is 2 Ohms.

Last edited by Class; Feb 4, 2016 at 03:54 PM.
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Old Feb 6, 2016 | 08:04 AM
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cool! thanks for the pic! hopefully i will never have to remove it but glad I know now that it only took a short time to get it out.
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Old Feb 8, 2016 | 09:18 PM
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I disconnected mine and using infinit bass link in the trunk.
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