fecupe2001 Posted November 4, 2011 Report Share Posted November 4, 2011 yep we all know that Quote I´m the SPL Gains topic creator!! wanna get louder?? check this: SPL Gains. Panamenian 2009 & 2010 & 2014 Bass Race 149.9 Champion! 2 15" subs and a 2K wired at 1 ohm, http://www.stevemeadedesigns.com/board/topic/167788-fecupe2001-2-15s-on-a-2k-video-on-page-3/ 8 Massive 15" subs and small power, http://www.stevemeadedesigns.com/board/topic/179296-fecupe2001s-8-15s-4th-order-bandpass-wall/ Link to comment Share on other sites More sharing options...
Watch the bass Posted November 4, 2011 Report Share Posted November 4, 2011 I learned 10 db louder/Volume 10 times power, like 1 w 90 dB, 10 w 100 dB, 100 watt 110 dB Quote "in the abundance of water, the fool is thirsty" Bob Marley Link to comment Share on other sites More sharing options...
cqtama Posted November 4, 2011 Report Share Posted November 4, 2011 I´ve gained 1.5 db by x3 the power before, so those 3 dbs by doubling the power isn´t a rule at all well its not just power, in order to gain 3 db i believe its double power along with double the output source (2nd of the same woofer) so for example if you have 1 15 on 2000 watts in order to gain 3 db you need to add another of the same 15 in the same type of box with the same power effectively doubling your output source adding 3 db to your total output. Quote R.I.P '01 blazer you treated my ears well until your transmission blew up. New Project [top secret] 149.0 db on music driver window open; so close I feel some boners are fueled by viagra and not true intimacy!......if you know what i mean.... I swear... sometimes I wish I was retarded so I could just agree with everyone x. Link to comment Share on other sites More sharing options...
dog24fret Posted November 4, 2011 Report Share Posted November 4, 2011 If I may ask a question about this subject. I'll be going from 500 watts to 2000 watts. From 4 to 8 12" subs. I am not at all sure what the gain would be on that application. Quote Cowboy Escort GrAnny ThUmper The Burp Link to comment Share on other sites More sharing options...
Stephen Posted November 4, 2011 Report Share Posted November 4, 2011 Simple question.... I read somewhere on here that every 10dbs is twice as loud acoustically.. and twice as loud with 3dbs to the ear? or something i know this is wrong.... But what is it? http://www.animations.physics.unsw.edu.au/jw/dB.htm Quote you can cook bacon shirtless if you're not a pussy...lol not hatin, but am i wrong here it looks as if the amp is not grounded its hooked directly to the battery. it that the way it should be. DC POWER Link to comment Share on other sites More sharing options...
ALPINE408 Posted November 4, 2011 Report Share Posted November 4, 2011 if you go from 147 dbs to 150 it sounds 2 times as loud as the 147 by ear.. 140 to a 150 sounds 10 times as loud to me by ear but im not gonna argue the math Quote Have you ever had your woofers blown? Link to comment Share on other sites More sharing options...
Stereolab Posted November 4, 2011 Report Share Posted November 4, 2011 (edited) I think bass at ultra-high decibels is perceived differently, it's not heard so much as it's felt, and 150db certainly feels much more than twice as strong as 140db... Edited November 4, 2011 by Merzbow Quote Link to comment Share on other sites More sharing options...
woodzyspl Posted November 4, 2011 Report Share Posted November 4, 2011 with 4 12's we got a 149-150 from less then 3k then a 152.2 from 9k. yet with 2 15s in slightly diffren't box the 3k did a 142 then 9k did 153.4 then with 1 15 3k and 9k was only 1db diff, don't remember scores tho.. yeh teammate loves building 100's of boxes 2 days before a comp and we try build a wall in under 2 days, still got a 152 lol our first wall so i suppose every box diff lol Quote AUSTRALIA do i need say more? HU: some crap pionee AMP: dc 9k @ 18v SUB: 4 elevation audio sqx 12" Battery: 2 neuton power 8200d burp setup for fun 152's soon to come: rebuilt soundstream xxx (2 18" OR 3 15" wall) Bunch speakers, more batts and new HU Link to comment Share on other sites More sharing options...
Wicks Posted November 4, 2011 Report Share Posted November 4, 2011 If I may ask a question about this subject. I'll be going from 500 watts to 2000 watts. From 4 to 8 12" subs. I am not at all sure what the gain would be on that application. Theoretically, With doubling your power from 500W to 1000W, you get +3dB. Doubling again to 2000W gives another +3dB. Doubling your cone area, another +3dB. Total = +9dB. There are MANY other factors that play into this as well. Box type, box size, cabin gain, EQ settings, etc... Quote This post sent with 100% recycled electrons. 2004 BMW M3Mechman 280A 2 - XS Power XP30001 - XS Power D375 500F of Maxwell SuperCaps (soon to be 1000F) iPadMini2Dash mounted O-scopeAudison bitOne (Remote DRC MP) Highs Amp - PPI Art A404 Hertz HSK130 (HSK165 waiting...) DC Audio DC9.0K 2- DC Audio XL12m2LEGAL - 147.3dB @ 41Hz OUTLAW - 150.2dB @ 45Hz OUTLAW - 145.7dB @ 30Hz JUNE 2014 SOTM WINNER 2014 COLORADO PEOPLE'S CHOICE WINNER SOTM BUILD:http://www.stevemeadedesigns.com/board/topic/141656-wicks-e46-m3-build-bass-turbo-button-and-a-big-new-addition/page-68#entry2802026 Link to comment Share on other sites More sharing options...
dog24fret Posted November 5, 2011 Report Share Posted November 5, 2011 Thanks Wicks for the info. I'll be posting the box in a few. Quote Cowboy Escort GrAnny ThUmper The Burp Link to comment Share on other sites More sharing options...
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