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<blockquote data-quote="nineballsafety8" data-source="post: 3646384" data-attributes="member: 583462">i understand what you are getting at, but the pressure on the sides of the port are not actually the same... if you go to DDAUDIO.COM they describe it a lot better than i do... but although the air in a port is constantly moving (back and forth), the air &quot;within&quot; the port becomes someone static, in that it never actually moves more the the distance the motor structure/structures of the drivers within the box can push it. so while a port is &quot;breathing&quot; at whatever velocity and frequency, the port is essentially using the same air over and over... there for the port becomes an additional driving surface (much liking adding more drivers), therefore the pressure inside the box an all surfaces (including the port) stays the same, while the pressure within the port stays at no true &quot;pressure&quot; but with much movement and volume.... atleast thats what my BAS in Physics and 3 yrs as a proffesional installer and 4 years in the amateur circuit... but then again opinions are like *** holes, everybody has one and most of them stink... but thats the way i understand it.and i appreciate the input on different bracing, but this design is a dream come true for me and is pretty set in stone... thanx</blockquote>

[QUOTE="nineballsafety8, post: 3646384, member: 583462"] i understand what you are getting at, but the pressure on the sides of the port are not actually the same... if you go to DDAUDIO.COM they describe it a lot better than i do... but although the air in a port is constantly moving (back and forth), the air "within" the port becomes someone static, in that it never actually moves more the the distance the motor structure/structures of the drivers within the box can push it. so while a port is "breathing" at whatever velocity and frequency, the port is essentially using the same air over and over... there for the port becomes an additional driving surface (much liking adding more drivers), therefore the pressure inside the box an all surfaces (including the port) stays the same, while the pressure within the port stays at no true "pressure" but with much movement and volume.... atleast thats what my BAS in Physics and 3 yrs as a proffesional installer and 4 years in the amateur circuit... but then again opinions are like *** holes, everybody has one and most of them stink... but thats the way i understand it. and i appreciate the input on different bracing, but this design is a dream come true for me and is pretty set in stone... thanx [/QUOTE]

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