![]() Think of the number under each frequency as the percentage of sound absorbed by the insulation at that frequency (per ASTM C 432 test). MASS LOADED VINYL BASS TRAP HOW TOHOW TO READ THE TABLE ABOVE: For each material, frequencies ranging from 125hz (low frequency "bass") to 4000 (high frequency) are tested. To simplify this for our customers you can use the table below for the 7 acoustic insulation panels we sell.ĬO-EFFICIENTS AT FREQUENCIES IN HZ PANEL TYPE That's most likely because they only promote one type of insulation (the cheapest or easiest for them to use in their acoustic panels). Most acoustic sites don't really go into details on what type of insulation you need or what thickness is appropriate. HOW DO I KNOW WHAT TYPE OF ACOUSTIC IN SULATION TO PURCHASE? By absorbing the reflected sound, the listener will only hear the direct sound waves coming from the speakers and not the reflections as well. The spot of first reflection would be on both of the side walls and ceiling halfway between the couch and the tv and speakers. For example, in a home theater the tv screen and speakers are on the same wall facing the couch which is in the back of the room. The first reflection is generally ha lfway between the speakers and the listener. MASS LOADED VINYL BASS TRAP INSTALLThe placement of non-bass trap acoustic panels are less critical, but it is always better to install them on the walls near the speaker's spot of first reflection. ![]() The 4" thick 4# density mineralwool board is a preferred option for corner bass traps. For lower frequencies, you will want to build a panel that is atleast 4" thick. Bass Trap Panels can be easily installed with our Bass Trap Corner Brackets. Bass trap panels can be stacked to "cut" the entire corner or if only one panel is being used, they should be installed at the same height as the bass speakers. If bass speakers are being used, it is highly recommended that bass trap panels are installed in the two corners of the rooms facing the direction of the bass speakers (sub-woofers). ![]() These panels can be easily installed with our Acoustic Impaling Clips.įor sound studios and home theaters, the placement of acoustic panels is of much more importance. ![]() Usually the walls or ceilings are fine for acoustic panels in these types of situations. If this is for sound absorption of lower ambient noise or echoes in a restaurant or conference room the placement is not as important as the number of panels installed. PLACEMENT OF PANELS: The placement of acoustic panels depends on the type of application. The thicknesses that we have vary from 1" to 4" thick (Rule of Thu mb: the thicker the panel the better absorption of low frequencies). Acoustic insulation sold on our site comprises of Fiberglass and Mineral Wool insulation panels that are 24" x 48" sheets. Acoustical insulation is designed to absorb as much sound as possible with as little sound reflection as possible. ![]()
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