posted
Less velocity = less port noise = better air flow through the port = more spl
-------------------- My system right now: A Sony HU and Focal Access 5.25" front system Posts: 546 | From: Vasa, Finland | Registered: Nov 1999
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quote:Originally posted by khstrom: Less velocity = less port noise = better air flow through the port = more spl
?????????? HUh?????? With no pressure there is no resistance in the port so how will it tune???
-------------------- Gorman Cassidy aka GMAN 1999 Iasca Idbl Points Champion 2000 DB Drag FinalsSS9+ 10th Place 2001 DB Drag FinalsSS5-8 9th place 2002 DB Drag FinalsSS3-4 7th place 2003 Slap World Champion SS 3 2003 DB Drag FinalsSS3-4 2nd place 2004 SS 3-4 Record Holder 163.4 2005 SS 3-4 Champ 166.9& WR 166.4 2006 SS 3-4 SBN Champ 167.6 WR 167.4 2006 SS 3-4 WF Champ & WR 168.2 2007 SS 3-4 SBN Champ 168.8 & WR 168.4 I,ll come back when someone beats my certified score!!!! Posts: 745 | From: montgomery, Al | Registered: Sep 2000
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quote:Originally posted by noyztoyS12L7s: Do I want more for SPL or less? I have bassboxpro6 and it shows the velocities of the air... What do I want?
i already told you that you dont want all that port velocity.........thats tne "extra" noise the PORT is making not the music coming out of it. Maybe you just need a second opinion, thats cool
on BBP keep the "wave" on the graph from fading at the top of the spike......read your online manual.
-------------------- Rockford Fosgate FiCarAudio Team PowerMaster
posted
also when the port velocity is extremely high, the theory of tuning flies out the window.
-------------------- "The cause and solution to all of Car Audio's problems" That Beerhat Guy 1 C-V Stroker 12d2 ID 6.5 components Kicker XS100 and ZR360 Posts: 251 | From: Houston,Tx | Registered: Sep 2000
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posted
been here, been there, im back in competition this year. totally different class. im starting to get in the groove again. im sure you will see the beer hat again.
-------------------- "The cause and solution to all of Car Audio's problems" That Beerhat Guy 1 C-V Stroker 12d2 ID 6.5 components Kicker XS100 and ZR360 Posts: 251 | From: Houston,Tx | Registered: Sep 2000
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posted
ok...then explain this....how come when u build the crx box u use aero ports....y?.....high velocity....4 4" aero ports have only 50 square inches of port....now build that with a slot port....u go down....but to stay with those aero ports u have to build a 100 square inch slot port
posted
for the crx is this a street drag application or superstreet/extreme, completely different thinking involved in both...
many of the normal street competitors have gained out here by using smaller slotted ports as opposed to the 6 cube 100 si ports we thought would be louder. basically if you are going to have a bigger port, you need more cone area and motor stregnth to create more pressure, not to mention more power.
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