Siless 3 in 1 Hybrid Sound Deadening?

i started looking into resonix a little, lol. but dig deeper than just accepting them as the best-- they're the best not because they're using better materials, different materials, or anything really special. they're simply the best because of the brands tested at the time, they had the heaviest material.

the specs are clearly listed, which is a very nice change from other brands:
12” x 12”
100 mil thick butyl layer
4 mil thick aluminum layer
1 pound per square foot

so the 3-in-1 hybrid stuff that started this thread would be a great competitor to this, likely edging out resonix from their lead if the test was performed again simple because there's going to be a slight amount of additional weight in that acoustic foam in the 3-in-1.

but note that resonix isn't a 'proprietary' formulation, or claims to do anything special-- i can't find any 'mil' specs on the Amazon or dynamat extreme, but keeping in mind that all 3 of these are simply a butyl rubber with an aluminum facing, and we know that the resonix is 100mil, the amazon basics would appear to be 80mil, and dynamat extreme appears to be 50mil--the graph very clearly shows the diminishing returns one nets from increasing the panel weight. but it also means that a double-layer of dynamat extreme would produce identical results to the resonix.

so in the end, what needs to be debated is the price per ounce of product being purchased(fat chance getting many brands to provide this info). they all do the same thing, with the same materials, and the same formulation(butyl/aluminum). the only real difference is who's brand is stamped on it, and each companies final cost/markup is.


i really like the charts as it demonstrates how sound dampening isn't as scientific as so many make it out to be. we're slapping weight to stuff so it vibrates less. that's it. the vibrations don't do less because 'dynamat' is stamped on it any more than they do because 'amazon basics', or 'resonix' is on it. there's no magical formula that absorbs the sound more than others. it's just simple weight/push/pull movement physics.

the level of quietness and dampening any person can achieve is really more of a question of the brand they choose to back, how deep their wallet is, and how much time they're willing to commit to the idea.

 

yeah, i went down the rabbit hole with resonix and that fb page for while. i get the impression that the schtick works fairly well for that guy, and gawd bless 'im. but damn....

 

i don't even need to dig through that rabbit hole to know what you found..

to be fair, there really isn't a sound dampening company that doesn't do it.

 

That dudes constant presence and shilling for his company on that Facebook page gets old quick. I like to think/hope the data that the other guy is putting out is unbiased. I guess my main question would be how much of a difference is the average person gonna notice between the Resonix and lets say the Amazon stuff? Night and day or just a little better? Just because a difference can be measured, doesn't mean it's significant. Especially if that difference costs a premium not in line with it's improvement. I suppose I will put my little project on hold for a little until I get tired of thinking about it then probably get a decent middle of the line deadener. I'd also like to see more reviews for that 3 in 1 and 2 in 1 from some place other than Amazon.

 

not much really. this is one of those things like guy's at the drive-in arguing over how they got the upgraded air filter and exhaust that's good for an extra 50hp on their dodge caravan... that'll really help when they're stuck in bumper to bumper traffic in the school pickup line...

same difference. is it an improvement? yes. but is it a drastic improvement? not likely. if the initial Amazon product is an (in theory to keep the math easy) 100% audible improvement, the slightly thicker resonix stuff is going to be about 125% improved.

alternatively, one could apply 2 layers of the amazon product, which would also result in a roughly 130% improvement.

it really comes down to the cost-per-pound of the stuff to which method is justifiable.

 

So this begs the question of what's the best cost/pound option?

 

That guy from resonix is an ass, I wouldn't give him a nickel. Imho you can't go wrong with Harmony Audio, it tests well on his page even. Also, Stinger roadkill expert which he used to have on his page but removed. It tested really well also. Both have free shipping if you look around which is a huge bonus imo...

 

What happened?

 

Nick can be a little abrasive. I'll give ya that. He's one of the younger SMEs in the game & it shows (regarding the attitude). However, his contributions to the car audio community easily offset any of that. He's helped countless people through all parts of the process at no cost to anyone except himself. He's also one of the best installers out there today & worth every penny - and he's expensive. If I had unlimited funds to do a build, I'd personally take my vehicle to either him or Steve Cook.

Resonix is good stuff. Probably the best. Someone mentioned earlier that he replaced SDS when Don closed down. That's accurate enough. IIRC, Don said he wasn't selling, but it's easy enough to believe Nick was able to buy some part of that company. The products are similar. Not saying that there was any sort of deal there, but he definitely filled SDS's spot as the top dog. Regarding price, yeah, good stuff from small American companies doesn't come cheap.

There's also a great deal of bad information surrounding the subject. I'll keep it shallow and just say that not all butyl is the same, not all aluminum is the same, and simply adding mass isn't the whole story. Some of this stuff will melt in your car - leaving an impossible mess. Some will offgass. Some is mostly ineffective. Some disregard the relationship between butyl formula/thickness and aluminum thickness & composition. Full sound treatments are a LOT of work and should last the life of the vehicle. Is that somewhere you really want to take chances to save a few bucks? I'm not saying you should buy Resonix, but deadening is not a good place to cut corners.

 

Nothing happened. His attitude just rubs me the wrong way. He has great products and really knows car audio but I just can't stand the constant, you can't afford not to use my products approach especially the way he delivers it. Thankfully he was banned from diymobileaudio and even then he kept making alternate accounts or accounts that were supposed to be his workers but were obviously him again. It's a shame because he really knows his stuff and I actually learned a great deal from his YouTube vids and even old forum posts about tuning especially when using a helix/brax dsp. I do appreciate the way he didn't hold any punches when talking about products but he needs to keep it in check when he's talking to people if he doesn't want it to affect his business because it's for sure not just me. The way he belittled new people asking simple questions was the final straw for me. Sure people could search more but there's a number of reason why someone might not, like they don't know how to, info gets outdated/tech advances, they might even just need to get their post count up to use the classifieds etc. If you are bothered by simple questions that have simple answers or repetitive questions, don't answer and move on rather than try to humiliate someone especially when you are openly representing your business. It's really not that hard. Also he had plenty of supporters there who would recommend his products for him but he still had to comment on every sound treatment post and almost always in a very condescending fashion. I think he would actually pick up some new customers if he would recommend some cheaper products when someone doesn't have the budget for his stuff rather than saying not to bother with it then. YMMV