Can I mount the FullTrap in a corner?
Yes, you can, by simply buying the FullTrap corner mounting kit. This kit includes four 45º mounting kits and two 2′ x 6′ cross braces. Also consider the Primacoustic MaxTrap. It is designed to fit in corners and has even better low frequency performance.

How does the membrane actually absorb bass?
Simple. It vibrates. When it vibrates, because it is made from a very heavy loaded vinyl, it does not make any sound when it shakes around! (It actually hardly moves at all due to the weight.) Scientifically speaking, the process is called thermo-dynamics whereby sound energy causes the membrane to vibrate, which then transforms the acoustic energy into heat.

If I stuff the FullTrap full of insulation, will it reduce more bass?
This may have a bit of an effect by broadening the absorption bandwidth but will likely limit the effectiveness of the diaphragmatic absorber.

Will stacking two bass traps increase the absorption?
Yes. Not only will you create a larger surface area for high and mid range frequencies, but the increased angle of incidence will certainly help control more bass. The FullTrap and MaxTrap are both 48″ tall allowing stacking in room with an eight foot ceiling.

Can I mount the MaxTrap between a wall and ceiling corner joint?
Yes. Just be very careful on how you intend to keep it in place. The cleat system that we provide is NOT designed for horizontal mounting so you will have to figure out your own method. When constructed, the MaxTrap is heavy! So use precaution and good judgment.

I have limited space, can I install the FullTrap on its side?
Yes. Just be very careful on how you intend to keep it in place. The cleat system that we provide is NOT designed for horizontal mounting so you will have to figure out your own method. When constructed, the MaxTrap is heavy! So use precaution and good judgment.

If these are known as bass traps, how do they absorb high frequencies?
Bass frequencies are the most difficult to control, so the term ‘bass trap’ really infers that these acoustic devices are able to absorb bass. High frequencies are easily absorbed by any porous and relatively soft material. In this case, Primacoustic Broadway fabric wrapped fiberglass panels are used.

How do I measure bass trap performance?
Measuring bass absorption is practically impossible using standard tests performed by acoustic laboratories such as Riverbank Labs. This is due to the size of the wavelength generated. For instance, 20Hz has a 55foot long wavelength! You would have to have a room larger than 55 feet long and wide to effectively measure the effect before and after. Therefore testing is generally done in small rooms using FFT waterfall analysis which can provide the engineer with helpful details to help predict the functionality and outcome.

Will covering the panel with another fabric change its acoustic properties?
No. You can easily add a colored fabric to match your room décor without any effect. Only something like a heavy vinyl could cause high frequencies to reflect off the surface. Adding a heavy vinyl will usually increase the bass trapping performance.

Can I use these bass traps behind a curtain in a home theatre?
Absolutely! Most frequencies will pass right through the curtain and be absorbed by the FullTrap in the normal way.

In new construction, can I flush-mount these into the wall?
Yes, of course! They will work equally as well whether they are flush mounted or surface mounted.

Are these bass traps class-1 certified for fire safety?
Technically, they are not. The front absorptive panel has been tested and is 100% class-1 safe. The melamine outer shell construction will pass any building inspection as this is the same material used in kitchens and bathrooms around the world. However, the inner vinyl membrane has not been tested, nor has the device been tested as a complete unit. If you are concerned about fire hazards, we suggest you contact your insurance provider for advice. The FullTrap can be used without the membrane should you have concerns and the membrane can be added after the installation has been approved by your insurer.

I am sensitive to odors. Will these have a smell when they are new?
Although we have not received any reports of any concerns, Primacoustic bass traps employ adhesives, resins and bonding agents during their construction and the panels are enclosed in plastic to keep moisture out. It is therefore likely that some smells will be present when they are new and recently unpackaged. The smell should dissipate fairly quickly. If you are sensitive, we suggest opening the boxes and airing out all of the components for a few days until you feel they are acceptable.