Hello folks the math for my no Budget crew. That's is willing to just do it. Will be doing the rear trap then side walls ceiling too. For the cost of a store bought top brand name. Many brands to buy from as each one if them has their own little tricks. So the answer to this math question. Had something to do all winter and bought or save 10k by just doing the builds. Vs waiting fir poster to reply. You look old wait for the perfect one spider webs. Self doubt will always hold them back. Be a doer not what just happen." One day closer to death " miss the starting gun Pink Floyd

You're very welcome! Share photos of your tube traps with us when you're done!

We will put together a video-audio sample of before and after audio clips while recording. We don't have anything recorded for that now but they've already made a huge difference to the sound of the room!

Is this video up anywhere yet?

good point. in acoustics what you don't measure does not exists.

@@gerardoruiz72 depends what you measure with

@@sambac2053 by measuring I mean using Smaart, Rew or similar

for that low end frequency problems you need helmholtz or diaphragmatic resonators tuned specifically

mate your`re fuckin right .. this stuff is nothing... better put 4x4 fiberblock instead of this fuckn tube. cheers

Hello folks: yes they do work I have build for two high end audio retailers and they taken them to the audio industry trade shows. Good reviews Ride Easy

yes it does, you will need to experiment with different placements.

I get that

In theory tube traps (Helmholtz resonator) absorb one specific frequency. Question is how many dB it can absorb on tuned frequency? By the way to what frequency this one tuned? And is there any falloff in absorption???

Helmholtz resonator? These tube traps are not Helmholtz resonators. They are round absorbers with diffusion on the opposite side. Sound pressure is absorbed within the first layer of fiberglass. Longer waves pass through with the help of spaced holes and are reflected and absorbed inside, and absorbed again, when reflecting back out of the holes or the waves are long enough to pass entirely through the trap. Though 18 -24inch diameter is needed to work on the lower frequencies. Check out gearslutz for a great DIY on a Helmholtz resonator example. Karumba has instructions in german and english. Nice job on the how-to SOS studio.

I think it would reflect some higher frequencies when the rockwool is inside, because the cardboard has a harder and closer surface as the wool. This will smaller the range of the absorbed frequencies - less highs. It is better when you want to keep them, and just want to absorb lows , because you don't want your room to sound to dry.

Hello folks I like your way of thinking. Thing is knee your done building your bass traps now it's time to build the side wall traps or rear bass traps. Now have you seen a room all done up look at the ads of other manufacturers best ideas can be found there. After all we're trying to copy them. Tube trap is similar compared to a transmission line speaker. The lining or stuffing purposes is to slow down the speed of the back wave to match the front wave of the bass 20 hz wave. 20 hz wave is like 44' long the duct is a 1/4 of this note long

I wonder if the tube with no holes or even no cardboard would work better as a broadband absorber that attenuates bass frequencies if filled entirely. This one is a tuned design but I'm not sure what range it is tuned to.

Trilby. Fedora has wider brim

but surely SOME absorption is good, no?? I mean in general in a studio , not specifically when it comes to these traps.

@@LetMeDieLord It depends on the room. If its highly reflective then yes.

I think these are meant to be bass traps, and the cardboard makes these perform better for isolating and trapping bass problems. The issue here is that they are not REALLY bass traps and they are also not REALLY Absorbers either. These are really really good: Diffusing Mid-Trap absorption deflectors, lol

These aren’t even built REMOTELY correct. of course there’s no responses and no proof of anything.

@@snapascrew any guides on how to build them?

@@franktamber3018 and he/she (snapascrew) didn't respond either right?

Actually it may works only because of hard tube witch can resonate on calculated frequency. All insulation/foam works great at 500 Hz and higher.