juan777 Posted June 25, 2017 Report Share Posted June 25, 2017 On 6/21/2017 at 11:16 PM, Triticum Agricolam said: It seems really counter intuitive, but right at the point where port velocity is the highest (usually at the tuning frequency, but not always) cone size, sub quantity, or Xmax just don't matter much at all. Right at the tuning frequency it really is the box that is playing and not the sub/s. The subs are just putting energy into the system, there is very little cone movement and virtually no output from the cone/s themselves. Above or below that peak port velocity frequency cone area matters a lot but port velocity drops off pretty fast from that peak so port area is no longer limiting. Here is an example of what port velocity looks like relative to frequency: Just a couple Hz above or below that peak spot and things drop off fast. Getting the right port area is all about optimizing for that peak. Thanks for breaking it down man. This will be my port area calculator from now on. The L@zy Hoe 2005 Chevy Tahoe 2,500 Watts of Highs/Mids 4 10 midrange 4 6.5 midwoofers 4 Tweeters 6 Supertweeters 2 Lithium 80AH Batteries 24K Watts 4 Custom 18s Quad alt setup Rebuilt 250amp and 3 370s Interior work by Lone Star Auto Works The Build Log Like Loud Bass? Click Here! On 12/5/2014 at 8:06 PM, juan777 said: See yall there, I'll be the drunk Mexican with aviators on. On 12/6/2014 at 10:32 PM, boom50cal said: I did see Juan LMFAO! He REALLY WAS the drunk mexican with Aviators on! Link to comment Share on other sites More sharing options...
aculous Posted June 25, 2017 Report Share Posted June 25, 2017 This should be stickied. Link to comment Share on other sites More sharing options...
Kyblack76 Posted June 26, 2017 Report Share Posted June 26, 2017 I agree. This should be pinned as fuck. Will be neat to see more examples and testing. Also to see it evolve in the future. ... SMD SUPER SELLER The Burban Build Blazer Build sold Acura trunk build sold Link to comment Share on other sites More sharing options...
aculous Posted June 27, 2017 Report Share Posted June 27, 2017 Also I just cross referenced your spreadsheet and bassbox pro and it looks like they are pretty conservative on ports. Helped me resize the design. Thanks again Trit! Link to comment Share on other sites More sharing options...
RooTxBeeR Posted June 28, 2017 Report Share Posted June 28, 2017 Sweeeet On 11/20/2012 at 8:54 PM, AMI CUSTOMS said: Turned mine up today at a light, guy next to me his steering wheel started moving and he looked over at me like I was a magician lol. On 5/9/2012 at 8:45 PM, skittlesRgood said: fuck the plating. look at what the main metal used is. you could buy unicorn blood plated terminals but if its just covering up dog shit, whats the point On 4/10/2013 at 12:26 PM, mrd6 said: I'll admit, half way through sanding that fiberglass in the rain and cold while I was all itchy I was definitely starting to question why i was doing this haha Soon To Be '04 Ford Escape US Alternator 280A Hairpin D4800 Under the Hood (6) XP3000's in Rear 1/0 SHCA & XS Power 4 runs to back TORK2 kit from Tony @ CE Auto Supply Pioneer DEH-80PRS DD AW6.5 (2) per door *Tweeter Unkown* DD SS4a & C3d (2) SCV4000 @ .5Ohm (2) 15" Sundown Zv5 Link to comment Share on other sites More sharing options...
neuspeedescort Posted June 28, 2017 Report Share Posted June 28, 2017 just plugged in a few specs of recent boxes i have built. couple i was dead nuts on others.....well they are not so much. but still in the window. Link to comment Share on other sites More sharing options...
Triticum Agricolam Posted June 28, 2017 Author Report Share Posted June 28, 2017 9 hours ago, neuspeedescort said: just plugged in a few specs of recent boxes i have built. couple i was dead nuts on others.....well they are not so much. but still in the window. Can you give some examples of the boxes that didn't match up with what the calculator said? Any info helps me make it better. "Nothing prevents people from knowing the truth more than the belief they already know it.""Making bass is easy, making music is the hard part."Builds: Link to comment Share on other sites More sharing options...
neuspeedescort Posted June 29, 2017 Report Share Posted June 29, 2017 let me correct that statement a bit. not so recent builds. looking back they are a bit older. before i learned a few things. this weekend i will throw a few in WINisd and see what they look like and report back. some where built before i had that program. Link to comment Share on other sites More sharing options...
IKnowImLost224 Posted July 14, 2017 Report Share Posted July 14, 2017 Agree with it needing to be stickied! Haven't been on in a while but glad I scrolled to the second page to see this! Link to comment Share on other sites More sharing options...
Raptorman Posted July 14, 2017 Report Share Posted July 14, 2017 lol 1996 GMC Sonoma Four Fi BTL Neo 18's In 2:1 6th Order Bandpass 2 Ampere 5k's @ .5 TEAM FI TEAM #LITHIUMCANTDEMO On 10/20/2013 at 0:37 AM, KillaCam said: Fucking with a Prius driver is like making fun of a disabled kid. Pussies. Link to comment Share on other sites More sharing options...
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