adding dynamat / sound deadening

[23RST]

Anyone know where the best spots are to add sound deadening material?

Some background: I came over from a '22 Big Horn to this '23 RST. Cabin is waaay noiser because of Ram's ANC. It also takes away quality from the stereo because of the added wind noise. You can see the levels in this URL I'll attach. Every 3 decibels, noise effectively doubles. According to this testing, a big horn is quieter than a Denali Ultimate - which is nuts because it costs twice as much as a Big Horn. https://carconfections.com/full-size-pickup-trucks-sound-level-readings/

 

The 3.0 Duramax is awesome, but I am definitely starting to wrestle with overall interior comfort. It is definitely a step down from the ram which had a quieter cabin, better stereo (GM Bose is garbage), and much softer seats.

 

Thx for any/all feedback

[reeseb]

Head to your nearest RAM dealer

[23RST]

22 minutes ago, reeseb said:

Head to your nearest RAM dealer

 lolol I love the duramax & I have 0% loan on this RST. Just can't rn!

[Paul Beaudet]

The truck should have ANC, especially with the Bose with its separate amp.

 

Alldata says it can be toggled with a scan tool talking to the amp.

 

I have the 2.7, quietest car/truck I've ever owned. Quieter than my Volt, even.

Edited June 14, 2024 by Paul Beaudet

[23RST]

13 minutes ago, Paul Beaudet said:

The truck should have ANC, especially with the Bose with its separate amp.

 

Alldata says it can be toggled with a scan tool talking to the amp.

 

I have the 2.7, quietest car/truck I've ever owned. Quieter than my Volt, even.

What trim? Maybe not enabled on the RST?

 

May not matter or just be a poor system - the Denali Ultimate surely has it enabled and is still 2x the noise level as a Big Horn.

Edited June 14, 2024 by 23RST

[Paul Beaudet]

44 minutes ago, 23RST said:

What trim? Maybe not enabled on the RST?

 

May not matter or just be a poor system - the Denali Ultimate surely has it enabled and is still 2x the noise level as a Big Horn.

 

I have a SLE, so no Bose.

[The Raven]

This is a major misunderstanding of what a decibel is.  Yes, for every 3 decibels, the noise level doubles...but that doesn't mean that you hear twice as much sound.  A db is kina like the audio equivalent of a lux (in lighting).  Lux tells you lighting intensity at a point.  It doesn't really tell you anything about how bright a light is.  Same with a decibel - it's a measurement of sound at a point in space...not in any way representative of what the sound level around that point may be.  Also, decibels are measured in a frequency range, so anything that falls outside of that range is not accounted for.  

 

I've been in a Denali Ultimate - it's dead quiet.  You'd be hard pressed to discern the difference between it and any of the other brands' lux trucks.  Furthermore, you aren't going to improve the situation without a complete interior rip-out and pretty involved sound testing, to find out where the leaks are.

 

Also keep in mind - it's a truck.  Truck interiors even on base models at this point are far nicer than they need to be.  Remember what's important - you're now driving a much higher quality truck from a much better automaker...that's far more important than how pretty or quiet the interior is.

Edited June 17, 2024 by The Raven

[KinkyDuramax]

Mmm I thought about adding dynamat as well in my Denali. It's already quiet, but could be better. Lol 

[HondaHawkGT]

On 6/14/2024 at 11:57 AM, 23RST said:

Anyone know where the best spots are to add sound deadening material?

Some background: I came over from a '22 Big Horn to this '23 RST. Cabin is waaay noiser because of Ram's ANC. It also takes away quality from the stereo because of the added wind noise. You can see the levels in this URL I'll attach. Every 3 decibels, noise effectively doubles. According to this testing, a big horn is quieter than a Denali Ultimate - which is nuts because it costs twice as much as a Big Horn. https://carconfections.com/full-size-pickup-trucks-sound-level-readings/

 

The 3.0 Duramax is awesome, but I am definitely starting to wrestle with overall interior comfort. It is definitely a step down from the ram which had a quieter cabin, better stereo (GM Bose is garbage), and much softer seats.

 

Thx for any/all feedback

I have never tested my 2024 LTZ with the same 3.0 Dmax, but it's extremely quiet. Almost to the point of being dangerously quiet and lulling me to sleep. I've been in plenty of current gen Rams and they have not sounded any more quiet. My 2019 RST had the foam strips move out of place which can cause wind noise. They are located ahead of the front doors, wedged between the front quarter panels and cab. If they move out of place it allows air to rush into areas around the door. You may also want to check your door seals.

 

From your link, a Chevy High Country was the 3rd quietest trucks they have ever tested.

Edited June 19, 2024 by HondaHawkGT

[jashaw]

I put dynamat on the entire interior (roof, floor, and all doors) when i installed my starlight headliner, and aftermarket door speakers. No hard decibel numbers to provide. It is much quieter than without. 

 

FYI: If I were not doing the starlight headliner at the same time, the only places I would have put material would have been the doors. Getting the headliner out, (without ripping/folding/creasing) required me to remove the passenger seat, and backseat. No time like then to go ahead with installing the sound deadening.

 

I agree with @The Raven . Without knowing exactly where to put material, you're almost better off doing a full job.

 

Pre-made door kits are made for your truck. But only for the doors. 

[23RST]

On 6/19/2024 at 2:49 PM, HondaHawkGT said:

I have never tested my 2024 LTZ with the same 3.0 Dmax, but it's extremely quiet. Almost to the point of being dangerously quiet and lulling me to sleep. I've been in plenty of current gen Rams and they have not sounded any more quiet. My 2019 RST had the foam strips move out of place which can cause wind noise. They are located ahead of the front doors, wedged between the front quarter panels and cab. If they move out of place it allows air to rush into areas around the door. You may also want to check your door seals.

 

From your link, a Chevy High Country was the 3rd quietest trucks they have ever tested.

I didn't know about this foam in front of the doors - where's the best place to access & check?

RE: High Country, they're evidently insulating that trim more than others