AP Zoutes Posted August 12, 2006 Report Share Posted August 12, 2006 1st question same 15's? 2nd question same box? 3rd question was 750 the most the subs you were using could handle? Also if your subs can handle twice the poer that meens you are moving them further in effect adding to the amount of mass movement which would equal an increase in cone area Cone area is not just 10/12/15/18 etc it also needs to include movement Quote Link to comment Share on other sites More sharing options...
AP Zoutes Posted August 12, 2006 Report Share Posted August 12, 2006 You can pick apart each individual reply I may make,but if you re-read what was posted it explains the different variables. Quote "Doubling the power into the speaker motor may get us 3dB more sound to our ears, but again it may not! Just like dumping twice the gasoline and twice the oxygen into our cars motor may not make us go twice as fast." Defiantly not a law of physics! Definitely not always true. It is true that the cone vibrates the air to make sound, and if we had double the cone area ALSO vibrating the air making the same sound then we might have 3dB more sound! But we did more here than to simply change cone area! We added cone area that was already playing the same sound! Edit to mention if your excursion goes from one inch to two inches you are in effect increasing your cone area Quote Link to comment Share on other sites More sharing options...
AP Zoutes Posted August 12, 2006 Report Share Posted August 12, 2006 But I want to pull away from going back and forth. IF you notice the post directly after mine I make my actual advice. The post before was a quote from another site that had IMO good info when it comes to making a decision on subwoofer purchasing. Quote Link to comment Share on other sites More sharing options...
David Posted August 12, 2006 Report Share Posted August 12, 2006 1st question same 15's? 2nd question same box? 3rd question was 750 the most the subs you were using could handle? Also if your subs can handle twice the poer that meens you are moving them further in effect adding to the amount of mass movement which would equal an increase in cone area Cone area is not just 10/12/15/18 etc it also needs to include movement I tell ya what, after I get my my box put back together, I will do a test 2 15's on 1 bd1501=?? then I will double the power 2 15's on 2 bd1501's=?? same box, same subz nothing will change except ampilifier power. Now, I maybee wrong but cone area has nothing to do with movement. from what I remember from my learnings cone area is the measurement of the cone. which is Circle Area Formula= π*r2 where r is the radius if you want to get real technical The volume of cylinder and disc is given by the conventional formula Vcyl = π * r² * h (where r is the radius and h is height), and Vdisc = π * r² * h Im not saying that there isnt some truth in that post. but if were gonna post some info it might as well be as close to the truth as possible IMHO it is not, its all theories people can prove theories right and wrong all day. Quote Link to comment Share on other sites More sharing options...
AP Zoutes Posted August 12, 2006 Report Share Posted August 12, 2006 Well, I'm always learning. The explanation I've heard is if you look at the sub as a whole mechanical object and are creating pressure the more you can move the sub the higher your spl. I believe the prhase was mechanical cone area, I don't remember the exact phrase but do you see where I'm going with this. If you double the power and effectively double your cone excursion your spl will go up unless you have reached the mechanical limitations of the sub. Quote Link to comment Share on other sites More sharing options...
Ray Posted August 22, 2006 Report Share Posted August 22, 2006 Depending on cone displacment, and fs of the enclosure. Quote 2008 California state record holder 157.2 Bassrace2009 California state record holder 157.0 BassraceRollin 50's 158.7db2009 King of Cali Bassrace2009 USACi score 160.5 @ 42hz Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.