Planar Speaker Asylum

Welcome! Need support, you got it. Or share your ideas and experiences.

Use this form to submit comments directly to the Asylum moderators for this forum. We're particularly interested in truly outstanding posts that might be added to our FAQs.
You may also use this form to provide feedback or to call attention to messages that may be in violation of our content rules.

You must login to use this feature.

Inmate Login

By default, logging in will set a session cookie that disappears when you close your browser. Clicking on the 'Remember my Moniker & Password' below will cause a permanent 'Login Cookie' to be set.

Moniker/Username: The Name that you picked or by default, your email. Forgot Moniker?	Examples "Rapper", "Bob W", "joe@aol.com".
Password:	Forgot Password?
	Remember my Moniker & Password ( What's this?)

If you don't have an Asylum Account, you can create one by clicking Here.

Our privacy policy can be reviewed by clicking Here.

Inmate Comments

From:
Your Email:
Subject:

Message Comments

Original Message

RE: Tube Bass Traps.

Posted by Markeneret on October 25, 2016 at 14:40:38:
I built 67 of these for my sound room. Forget the brand, but it was simiar to Knauf. Believe the place was Pacific Insulation here in Portland. ASC is 2 hours away, in Eugene. The ware-houseman said they had "a guy" from Eugene that bought the same stuff. I didn't fill them with anything, but I did put a circle of fiberboard 1/3rd of the way inside the tube, with a 1/4" airhole in the middle. I cantered it slightly to break up resonances. The hole is for pressure equalization. Used drummel-cut 1/2 inch pressboard for the ends, liquid nails as adhesive. My recommendations:
* experiment with the thickness of plastic for diffusion on 1/2
* A 4 ft height is much more useful=1 unit would be over ear height
* They hold up for years, but the chicken wire ASC uses adds stability
* Find a shop that will cut the circles for you ! (Pain to do by hand)
They make a huge difference in bass and imaging. Map out your room nodes and consider the lowest frequency that your speakers put out and ear can hear. I initially built 2 helmoltz resonators to address my 22hz fundamental. My Maggie6L's don't go much below 60hz and my ears lose 40 and below. Oops.