I need to put some moth flakes in my transmission-line sub-woofer every few years to keep the moths away. Acousta-Stuf is a wonderful new material that works as well as wool with none of wool’s headaches (Easier to fluff apart and it’s moth proof). so if you are adding poly to decrease output of folded bass horn.I think you will find the opposite effect.īest Answer: Naturel wool has long been regarded as the preferred stuffing for speaker cabinet because its fiber structure is superior for converting sound into heat and thus dampening the speaker’s rear wave at higher frequencies and making the cabinet look larger to the speaker at low frequencies. Polyfill is also not appropriate for every application – if your enclosure is already bigger than the manufacturer suggests, polyfill isn’t needed and could actually negatively impact the sound. Too much also decreases the effective dampening of the speaker which would cause it to bottom out. Obviously overstuffing the enclosure will restrict the linear movement of the sub and make the quality of the audio sound extremely muffled.
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Too much Polyfill can prevent your speakers from producing audio at their full potential.
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As long as you are within the manufacturers suggested box volume specs, a larger enclosure is more efficient than a smaller one no matter what size the driver is.translation.higher efficiency equals greater spl. In these cases you can easily add some Polyfill to the box to increase the effectiveness of your subwoofer.
Often times you’ll either build or buy an enclosure for your equipment and it will be just a tad too small.
The speaker then interacts with the enclosure as if it is larger than it really is, changing the sound. When the air passes through the Polyfill it is scattered and dissipated by the fibers, causing the air to be less dense. When Poyfill is added to your enclosure, the airspring within the box begins an isothermal process. it seems to me that if youre simply trying to reduce output to correct balance issues you should try dsp. Best Answer: first off I need a bit more detail as to why you feelthe need to reduce spl output from your folded horn.
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