No Disc Posted January 24, 2007 Share Posted January 24, 2007 I'm curious if anyone has replaced their stock Heritage acoustic material with something like whats offered by basslinear? No Disc http://www.basslinear.com/fproduct.html Quote Link to comment Share on other sites More sharing options...
mas Posted January 24, 2007 Share Posted January 24, 2007 1" thick foam is NOT going to absorb any appreciable LF energy, contrary to claims (even IF it is convoluted like egg cartons [] ). Don't waste your time or money. ---------------------------------------------------------------------------- Product OverviewBassLine is an acoustics product applied to the inside of ANY speaker cabinet to improve bass performance.Each panel is 12''x 6'' x 1''. Anyone care to calculate the 1/4 wave frequency of a maximum 45 degree incident thickness of 1.414"????[] Based upon their dimensions, the best case low frequency effectiveness ends at 2387 Hz! Lots of significant subsonic energy there![:S] ...Gives a new meaning to LF doesn't it! When BassLine is installed in a speaker cabinet it changes the acoustical atmosphere conducive to capturing the sound produced by the back-wave, from the bass driver. What Results Can I Expect? This product produces three-fold results: The application of this product to the speaker cabinet walls lowers their resonate frequency and reduces sound wave travel through the walls of the speaker cabinet. Some estimates suggest that up to 30% of total sound emanating from a speaker system is through the walls of the enclosure. This must be due to their significant mass!!![] The insulation works to improve the overall performance of the speaker, by reducing the effects of standing waves inside the cabinet - thereby diffusing them as opposed to just absorbing them. Since BassLine SpeakerPanelsare made of wood (so are egg cartons!!!), they absorb a large quantity of the sound created by the back-wave, eliminating standing waves. The remaining clean sound exits the cabinet, resulting in a an increase in efficiency compared to fiberglass or other materials. The force of the back-wave (usually tuned by the port to a frequency lower than that produced by the front-wave) is allowed to join the force of the front-wave without some of the degrading artifacts. The integration of front-wave energy added to the back-wave enhanced by BassLine and the cabinet itself creates harmonic resonance adding color to the lower midrange. This re-creates vocals with feeling while achieving VERY clean bass. Sort of like a sonic 'group hug'. TheBassLine SpeakerPanels application can achieve sound well beyond the limits of audibility into the range of pure subsonic energy that moves the body and stirs the soul... A sound long sought after by audiophiles and discriminating music listeners. Fascinating!!! And even I can agree that the benefits extend "well beyond the limits of audibility". I fancy that dogs can't hear them either! The bottom line is that BassLine SpeakerPanels are effective, inexpensive and simple to apply; resulting in an improved efficiency and tighter low end. Q Is BassLine egg cartons? A. No but the shape of our product is the same. This shape absorbs 50% of the sound. Fascinating!!! And utter nonsense! ...But then, I may be overlooking something, as it may be that they require the symbiotic use of cable tiptoes to keep the interconnects off of the ground to really make them effective. At least this explanation would make sense! [] And I even resisted making a comment about sonic 'buns of steel' in regards to the "tighter low end" claim...oops! Where else but in audio and in the new age vitamin market can people actually profit with such nonsense? Quote Link to comment Share on other sites More sharing options...
DrWho Posted January 24, 2007 Share Posted January 24, 2007 Gives a new meaning to LF doesn't it!They must have an RF circuits engineer designing these products []Hilarious post Mark [Y] Quote Link to comment Share on other sites More sharing options...
pauln Posted January 25, 2007 Share Posted January 25, 2007 So,... is there something that would work? Quote Link to comment Share on other sites More sharing options...
DrWho Posted January 25, 2007 Share Posted January 25, 2007 The very insulation they advertised removing? Quote Link to comment Share on other sites More sharing options...
mas Posted January 26, 2007 Share Posted January 26, 2007 What Mike said... This is a solution in search of a problem. Internal cabinet reflections are well understood. The best solution would be a properly designed enclosure. But, as this approach seems to confuse many designers, reactive fill has been used with great effectiveness for a long time. [] You are reaching the proverbial point of greatly diminishing returns. Quote Link to comment Share on other sites More sharing options...
mas Posted January 26, 2007 Share Posted January 26, 2007 What Mike said... This is a solution in search of a problem. Internal cabinet reflections are well understood. The best solution would be a properly designed enclosure. But, as this approach seems to confuse many designers, reactive fill has been used with great effectiveness for a long time. [] You are reaching the proverbial point of greatly diminishing returns. ...And the point of no ROI with regards to LF. Quote Link to comment Share on other sites More sharing options...
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