[jjvasquez]

Hi Guys! I have a 718 base Boxster and I love playing high bass music. I notice some rattling on the driver side speaker when I am playing high bass sound. What is the best solution on this?

 

[Viffermike]

Hi Guys! I have a 718 base Boxster and I love playing high bass music. I notice some rattling on the driver side speaker when I am playing high bass sound. What is the best solution on this?

I assume you mean you like playing bass-heavy music loud.

We need more detail:

• Is your stereo the base Sound Package Plus, or either the Bose or Burmester upgrades?
• What type of music (genre) are you playing?
• What's your definition of 'loud' or 'high'?
• Are you boosting bass at all using the tone adjustments?

Also: How much do you know about how bass frequencies differ from other frequencies? Based on the wording of your question, I think you're going to learn a few things -- most of which you're not going to like ...

 

[JakiChan]

I've been getting some rattles lately. I gots me that Burmester boom. I noticed it a lot on "Bad GuyY by Billie Eilish, for what it's worth.

 

[Viffermike]

I've been getting some rattles lately. I gots me that Burmester boom. I noticed it a lot on "Bad GuyY by Billie Eilish, for what it's worth.

LOL! My 'boom tester' is usually either Nine Inch Nails, Justice or Daft Punk ... ?

OP mentioned his rattle was in the door. Since the Burmester's (and the Bose's) sub is mounted directly behind the ignition switch over your left foot, well, any door rattles (and, likely, most other rattles) would be NVH, and there's not much anyone can do about it that doesn't involve finding the individual rattles and installing some sort of vibration-deadening material.

 

[JakiChan]

OP mentioned his rattle was in the door. Since the Burmester's (and the Bose's) sub is mounted directly behind the ignition switch over your left foot, well, any door rattles (and, likely, most other rattles) would be NVH, and there's not much anyone can do about it that doesn't involve finding the individual rattles and installing some sort of vibration-deadening material.

Maybe, but the sub is small, the drivers in the door I think are the same size (or larger), and depending on where the crossover point is, it's entirely possible that you can get door rattle from bass. I haven't spent the time troubleshooting it yet (pull car in driveway, repeat song until super sick of it) to narrow down where it's coming from. I do like volume...I'd hate to think that I already blew the driver. That Burmester system wasn't cheap.

 

[jjvasquez]

I assume you mean you like playing bass-heavy music loud.

We need more detail:

• Is your stereo the base Sound Package Plus, or either the Bose or Burmester upgrades? I have only the base sound package plus
• What type of music (genre) are you playing? I usually the dance party genre with high bass.
• What's your definition of 'loud' or 'high'? Loud is usually when I raise the volume with the high bass music even after 3 level upwards
• Are you boosting bass at all using the tone adjustments? No the bass is at the mid level only which in normal mode.

Also: How much do you know about how bass frequencies differ from other frequencies? Based on the wording of your question, I think you're going to learn a few things -- most of which you're not going to like ...

 

[Naptown]

Have you emptied every storage compartment in the car to eliminate rattling noises from other stuff that might move in time with the bass?

 

[jjvasquez]

Yes di

Have you emptied every storage compartment in the car to eliminate rattling noises from other stuff that might move in time with the bass?

Yes done it and noticed when I am pressing the door trim the rattle is gone. Maybe some of the clip are loose? Don't know what to do it's annoying especially I love high level bass.

 

[Kingmota]

Yes di

Yes done it and noticed when I am pressing the door trim the rattle is gone. Maybe some of the clip are loose? Don't know what to do it's annoying especially I love high level bass.

I have exactly this same problem. With my Burmester Bass turned high and on certain songs my standard plastic (aluminum looking) drivers door trim rattles. The rattle goes away if I hold my finger on the trim. Would love to hear if you come up with a fix. Right now I usually turn my bass down a little.

 

[pdt84]

2018 CGTS with base stereo and I have the same issue on the driver side door. I sometimes have to put pressure with my leg to stop it but it is only temporary.
Let me know if anyone figured it out.

 

[jjvasquez]

Have you emptied every storage compartment in the car to eliminate rattling noises from other stuff that might move in time with the bass?

Yes that was done at first but still the rattling exist.

 

[Viffermike]

The issue is, then, almost certainly NVH somewhere in the door panels. Thing is, it could be frequency dependent or amplitude (read: volume) dependent since everyone's described having the issue with the bass turned up high.

If I were ****-bent on solving it, I'd first install Dynamat (or an equivalent) in/around all open apertures in the door frame -- particularly the speaker wells. That will help isolate the speaker drivers from the frame and quell NVH transmission into the door's less-solid parts. Remember that sheet metal will vibrate just like a speaker cone does -- it just needs more energy to cause it. Dynamat helps keep sonic energy from getting to the sheet metal and, thus, the less-solid parts.

If that doesn't all but solve the issue, then things'll get more tricky.

 

[jjvasquez]

The issue is, then, almost certainly NVH somewhere in the door panels. Thing is, it could be frequency dependent or amplitude (read: volume) dependent since everyone's described having the issue with the bass turned up high.

If I were ****-bent on solving it, I'd first install Dynamat (or an equivalent) in/around all open apertures in the door frame -- particularly the speaker wells. That will help isolate the speaker drivers from the frame and quell NVH transmission into the door's less-solid parts. Remember that sheet metal will vibrate just like a speaker cone does -- it just needs more energy to cause it. Dynamat helps keep sonic energy from getting to the sheet metal and, thus, the less-solid parts.

If that doesn't all but solve the issue, then things'll get more tricky.

Sorry for being ignorant on some terms what is NVH and is the Dynamat is sort of a rubber sealant? Thanks for your input I will try to open my door panel and see physically check the speaker.

 

[DriveInHouston]

Don't worry, I am just as ignorant, but Google says:

Noise, vibration, and harshness (NVH), also known as noise and vibration (N&V), is the study and modification of the noise and vibration characteristics of vehicles, particularly cars and trucks. While noise and vibration can be readily measured, harshness is a subjective quality, and is measured either via "jury" evaluations, or with analytical tools that can provide results reflecting human subjective impressions. These latter tools belong to the field known as "psychoacoustics."

Interior NVH deals with noise and vibration experienced by the occupants of the cabin, while exterior NVH is largely concerned with the noise radiated by the vehicle, and includes drive-by noise testing.

What is the best sound deadening material for cars?
Car Sound Deadening – Reviews Of Best Automotive Sound Deadening Material

1. Dynamat 10455 Thick Self-Adhesive Sound Deadener : ...

Given the name, I'd venture to say is some sort of a mat-like material with adhesive backing?

 

[Viffermike]

Sorry for being ignorant on some terms what is NVH and is the Dynamat is sort of a rubber sealant? Thanks for your input I will try to open my door panel and see physically check the speaker.

@DriveInHouston
NVH - Noise, Vibration, and Harshness. It's generally used as a catch-all term in acoustics to mean any vibration caused by high-SPL (Sound Pressure Level) waves, whether because of amplitude (volume) or frequency (resonant vibration, when a rattle happens only when certain notes are emitted).

Here is Dynamat's website. Its core product, Dynamat Xtreme, is (quote from the website) "a thin, super sticky butyl rubber bonded to an aluminum alloy skin." it is designed to eliminate both amplitude- and frequency-specific NVH.

 

[jjvasquez]

@DriveInHouston
NVH - Noise, Vibration, and Harshness. It's generally used as a catch-all term in acoustics to mean any vibration caused by high-SPL (Sound Pressure Level) waves, whether because of amplitude (volume) or frequency (resonant vibration, when a rattle happens only when certain notes are emitted).

Here is Dynamat's website. Its core product, Dynamat Xtreme, is (quote from the website) "a thin, super sticky butyl rubber bonded to an aluminum alloy skin." it is designed to eliminate both amplitude- and frequency-specific NVH.

Really appreciate your help! I will check on the product and hopefully solve my problem.

 

[GregW]

Here is Dynamat's website. Its core product, Dynamat Xtreme, is (quote from the website) "a thin, super sticky butyl rubber bonded to an aluminum alloy skin." it is designed to eliminate both amplitude- and frequency-specific NVH.

I've never tried it on a car, but it dampened the NVH from the pump on my previous espresso machine such that I could actually hear the water moving. Good stuff.

 

[YellowChicken]

I have exactly this same problem. With my Burmester Bass turned high and on certain songs my standard plastic (aluminum looking) drivers door trim rattles. The rattle goes away if I hold my finger on the trim. Would love to hear if you come up with a fix. Right now I usually turn my bass down a little.

Same problem in mine too with the base audio system. Super annoying...

 

[HooosierDaddy]

Edit - Old thread post not relevant

 

[Ultimateone]

Picked up a Base over the weekend and I can't believe the rattles/vibrations in the doors from bass and kicks in music I was hoping to not take off the door cards and add some deadening but it seems like I might have to.