How to Improve OE Sub Bass Quality and Eliminate Vibrations

[Stvee]

Latest update is that Toyota corporate won't approve any more warranty work on this currently because they don't have a fix for it and they're saying that all of them do it. There is currently an open dealer product report (not sure what that means) but as of now there is no fix available from Toyota.

I've always heard that Toyota service work is awful but I'm pretty disappointed they're just going to give up at this point.

For now I guess I'm just going to unhook that subwoofer. With the mods from this thread it will probably sound better with one than it did from the factory anyway.

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[Sam B]

That’s ridiculous. I don’t think I would be happy w that answer from them. I would keep pushing.

 

[digicidal]

Latest update is that Toyota corporate won't approve any more warranty work on this currently because they don't have a fix for it and they're saying that all of them do it. There is currently an open dealer product report (not sure what that means) but as of now there is no fix available from Toyota.

Sounds like an attorney could make a killing on a class-action then... unless they're pulling a Microsoft and calling that a "feature".

 

[Stvee]

Sounds like an attorney could make a killing on a class-action then... unless they're pulling a Microsoft and calling that a "feature".

They were admitting that it is a problem at least, just that they don't currently have a fix for it.

I need to set in some other cars to see if I can hear the same thing. It's not extremely noticeable especially before you fix the other rattles present from the factory. I wouldn't be surprised if a lot of peoples cars are doing the same thing and they just haven't noticed or dug into it enough to pin point the issue.

It is clear as day though when you unplug the other rear speakers and just have the two subs playing. I'll try to get a video of it before I put it back together.

 

[BMWAF]

They were admitting that it is a problem at least, just that they don't currently have a fix for it.

I need to set in some other cars to see if I can hear the same thing. It's not extremely noticeable especially before you fix the other rattles present from the factory. I wouldn't be surprised if a lot of peoples cars are doing the same thing and they just haven't noticed or dug into it enough to pin point the issue.

It is clear as day though when you unplug the other rear speakers and just have the two subs playing. I'll try to get a video of it before I put it back together.

Sounds like they're just too lazy to properly diagnose and fix the issue; This isn't out of character by any stretch.

Now I don't want to minimize your problem but after about 6,000km I have no real complaints with the audio save for the mid range sounding a little muddy. I have ported my subs and added the foam to the boxes but didn't bother with sound deadening or any of the vibration/rattle solutions as I never had the issues to begin with.

From what you have posted, it sounds like you unfortunately got a Friday build audio system and if I were you I would be fighting tooth and nail until Toyota fixes it.

Where you able to see underneath the subwoofer? Maybe removing it from the box and see if there's still noise?

This reminds me. After I had an aftermarket system installed, I had a similar issue with a Focal speaker in my Type R. The issue was intermittent and nobody could work out what the issue was. I was eventually told it was likely that my amp was under-powered. Long story short, it turned out that it was just a solitary screw that had been threaded on install and the fucker just so happened to resonate at a certain frequency. Ugh.

 

[ShakaDaKine]

Latest update is that Toyota corporate won't approve any more warranty work on this currently because they don't have a fix for it and they're saying that all of them do it. There is currently an open dealer product report (not sure what that means) but as of now there is no fix available from Toyota.

I've always heard that Toyota service work is awful but I'm pretty disappointed they're just going to give up at this point.

For now I guess I'm just going to unhook that subwoofer. With the mods from this thread it will probably sound better with one than it did from the factory anyway.

I have the same issue and got the same response. They know it's faulty, but refuse to go any further.

 

[FLtrackdays]

Latest update is that Toyota corporate won't approve any more warranty work on this currently because they don't have a fix for it and they're saying that all of them do it. There is currently an open dealer product report (not sure what that means) but as of now there is no fix available from Toyota.

I've always heard that Toyota service work is awful but I'm pretty disappointed they're just going to give up at this point.

For now I guess I'm just going to unhook that subwoofer. With the mods from this thread it will probably sound better with one than it did from the factory anyway.

Get a really nice loud exhaust to drown out any unwanted noises ?

 

[Kickz&Co.]

Help

 

[FLtrackdays]

Help

https://gr.drivenasa.com

 

[bigassklir]

Hate to be a little late to the party, but I don’t know if this is just my experience, the sound system still sounds like dog with the EQ and subwoofer mod. Could this possibly be because of a revision to the sound system on the newer cars?

 

[BMWAF]

Hate to be a little late to the party, but I don’t know if this is just my experience, the sound system still sounds like dog with the EQ and subwoofer mod. Could this possibly be because of a revision to the sound system on the newer cars?

It depends on your expectations. In my MY23 with the JBL premium sound system I found the mod to be a relatively minor but worthwhile upgrade. The improvement was largely around improving the bass and reducing some distortion/strange resonances it could cause on occasion. The improvement wasn't earth shattering but it did eradicate the aforementioned resonances and while not very deep, the bass sounds relatively good to my ears. I'm not particularly into window shaking bass of course, so your expectations my be different.

My complaint - even after the Tadda mod - is that the mid-range is still quite muddy. This is likely a speaker or amp limitation so fixing this would probably mean going all in which I really can't be bothered with at the moment. And just to be clear, almost any proper aftermarket system (not BAVSound) will leave the stock Supra system for dead - my relatively inexpensive decade old custom Focal setup in my other car does just this! As it stands, the JBL package coupled with the Tadda mod is what I would call the low end of acceptable. If you want better, you're probably going to need to apply some real time and money.

 

[bigdkk]

Worth doing this on the base model without JBL?

I have the same question for my '24. Anyone try with the base model without JBL?
We don't have the same EQ setting options as the premium. ?

 

[Timmy_Jones]

I have the same question for my '24. Anyone try with the base model without JBL?
We don't have the same EQ setting options as the premium. ?

That’s why you need a downpipe + AWE touring exhaust and just always keep the windows down!

 

[Erty]

Just did this mod on my 2024 3.0 premium, can confirm significant improvement. I still need to add some dynamat though.

 

[BrodoFratgins]

Finally got around to doing this and man... if you're still on the fence about it just go ahead and do it.

However, I think I kinda still prefer surround ON. I keep going back and forth

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