Quest for Real Bass Traps

[Curvature]

I'm not sure why the Y axis means, but these UK corner mounted bass traps claim great absorption in the bass region. https://www.gbacoustics.co.uk/products/pet-bass-trap-xl

Porous absorbers are not bass traps, not at that size.

 

[caught gesture]

I'm not sure why the Y axis means, but these UK corner mounted bass traps claim great absorption in the bass region. https://www.gbacoustics.co.uk/products/pet-bass-trap-xl

NRC is measured on a scale that ranges from 0 to 1. An NRC of 0 means that the product absorbs no sound. An NRC of 1 means that the product absorbs all sound. This product chart has a fictional axis, therefore the data and conclusions can be considered fictional.

 

[ripmixburn]

I wonder if they are making the same mistake as Uplift acoustic products and misreading the PET specification. I think it's e200 which (if i recall correctly) means enclosed cavity with 200mm of space.

 

[ripmixburn]

Let's have a panel discussion

 

[sarumbear]

Let's have a panel discussion
View attachment 243585

I’m behind the grey panels but I can still hear you

 

[FeddyLost]

I wonder if they are making the same mistake

As any false advertising.
I have great doubt that they can make fully porous bass trap with decent efficiency at 100 hz and below within this size.
Maybe they have composition tuned helmholtz+porous? Both layers can be done from PET.