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American bass VFL-8" woofer depth?
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<blockquote data-quote="fithwheel" data-source="post: 8666767" data-attributes="member: 674179"><p>port seems a little long for .86 cf net @39hz 4" round? was that a little over 4"? if just 4" i got around 35hz if not flared. Maybe i looked at it wrong idk? I paid for bass box pro and I am glad i did port length has been spot on, there is a difference between winisd port length and bbp depends on how you're doing the port. Excursion seems more accurate to me anyway. I've had a couple of subs that I've modeled and according to winisd they should be over excursion but not on bbp went with bbp without issues. Group delay is different then winisd as well as vent velocity. Other stuff like impedance etc, seem close idk but yeah that length seems long if going for 39hz in that volume. If you're going with a 4'" personally I wouldn't worry about flaring seems like plenty of port area at that volume u can just smooth the edges imo but i am no expert. Also 4 looks like it'll be a little more boomy then a 3 but the 4 will give ya a little more output near tune. personally with a single 8 I'd go for as much output as you can get.</p></blockquote><p></p>
[QUOTE="fithwheel, post: 8666767, member: 674179"] port seems a little long for .86 cf net @39hz 4" round? was that a little over 4"? if just 4" i got around 35hz if not flared. Maybe i looked at it wrong idk? I paid for bass box pro and I am glad i did port length has been spot on, there is a difference between winisd port length and bbp depends on how you're doing the port. Excursion seems more accurate to me anyway. I've had a couple of subs that I've modeled and according to winisd they should be over excursion but not on bbp went with bbp without issues. Group delay is different then winisd as well as vent velocity. Other stuff like impedance etc, seem close idk but yeah that length seems long if going for 39hz in that volume. If you're going with a 4'" personally I wouldn't worry about flaring seems like plenty of port area at that volume u can just smooth the edges imo but i am no expert. Also 4 looks like it'll be a little more boomy then a 3 but the 4 will give ya a little more output near tune. personally with a single 8 I'd go for as much output as you can get. [/QUOTE]
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American bass VFL-8" woofer depth?
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