OuTLaWeD

That is also not true in every case. its still a square wave. teach a noob the correct way instead of maybe having him throw twice or 3 times the powa on a sub and not know what he is doing. a good start would be that since you have a 4v pre-out from the headunit don't turn the gain up any more than 1/4 of the way up. set the headunit properly to achieve the best output.

why don't you go with the hifonics brz2400.1? solid amp for a great price. i would also look into the soundstream rub1.2500. both are nice amps

def down for a meet. i've never met so many people on a forum from this area

damn, i am 20min from Okoboji. any of you other guys make it up this way?

damn, i am 20min from Okoboji. any of you other guys make it up this way?

crutchfield reps can be idiots. one thing that can hurt the sub is if you turn the gain on the amp all the way up and you already have a 4v pre-out from the headunit

don't be surprised to see you have lost 5db when you get metered on that TL. for what you have and how its set up there is no way your at 148db. this wasn't a negative post it was a don't be surprised when you loose about 5db post.

don't be surprised to see you have lost 5db when you get metered on that TL. for what you have and how its set up there is no way your at 148db. this wasn't a negative post it was a don't be surprised when you loose about 5db post.

welcome to ssa! i think you will find this a great place to learn, relax and chill

Right, I think we meant the same thing, but worded differently. I see a 20 square per cube port too large and wouldn't sound as good as a 10 square per cube. And I definitely agree that enclosure size is the biggest thing when it comes to controlling a sub mechanically. Doesn't the subwoofer parameters have to do with how much port to use and power being applied? I've kinda lost it... but maybe I missed a posed that stated that... I just think that if that's what he's set on then let it rip. I'm not gonna blow on the coals and re-ignite this one.

No, No, you have it all wrong. I was never arguing with a Super Mod, I was arguing my opinion. He never disrespect me at anytime so I wouldn't show disrespect towards him. I am no "enclosure god" and never claimed to be. As I stated in the beginning of this thread that I was only giving my opinion and maybe trying to save you time,money,and maybe your sub in the future. If you took me wrong then I'm sorry, but I was just trying to help.

You sound like one of those idiots from the Suck My Di@& boards. Congrats

Right, I think we meant the same thing, but worded differently. I see a 20 square per cube port too large and wouldn't sound as good as a 10 square per cube. And I definitely agree that enclosure size is the biggest thing when it comes to controlling a sub mechanically.

But as long as the port isn't extremely huge then you can't tell a difference, and therefore it doesn't matter? That's a one sided argument as well, say it was a small port and the vent speed was too high... There is an audible difference between a port that is just big enough to not hear the port velocity and a port that is 20 squares per cube. You will have better sq and more range in frequencies. It won't have quite as high of an spl number, but it's not like your gonna loose 3db with a smaller port either. It just makes a more musical enclosure

You have to test the extremes to really see the picture

Do this Duran, make an enclosure with an unbelievably huge port and another with a smaller than average port and test them side by side same power and everything and tell me what one had better sq

Overall enclosure volume combined with port volume is what affects mechanical performance. If you have a port that's too big it won't allow the sub to load properly

Having less port volume will give you a more musical enclosure. In the easiest terms, it keeps back pressure on the sub allowing it to play a wider range. I'm not talking about making the port so small that you hear the port velocity I just saying a couple cu. in. less per cube of enclosure volume

Alright, now that i can sit down and eexplain myself why i dont like your box ill point out a few things. When you make an enclosure that large you loose out on cone control and also as a sub gets broken in the spiders become softer and the surround aswell further making the sub at risk of mechanical failure and if for some chance you ever want to put more power to it you cant because you'll definitely throw the cone past it's limits and mess up your sub. If you choose to put more power on the sub and think you can shrink the enclosure easily by adding bracing or whatever then you have thrown off the tuning of the enclosure and you have to rebuild the port anyway. I always say do it right the first time and you'll never have to do it again. Building a large enclosure does flatten out the frequency curve and in return give you a more musical enclosure, but so will a smaller port and that doesnt have the potencial to damage anything. I would build the enclosure to 6 cubes net and give it around 80 square inches of port, that will be efficient and musical that way if you do decide t put more power on it later you won't htave to spend the time and money to build a new enclosure. I don't know your skill level so I put this out there as simple as I could and I'm a bit lit tonight, but if you have any questions I can probably answer them better tomorrow.

Do as you wish. Everything anbody post is just an opinion they may have. Having experience, but only 17 post i guess i wont get anywhere with anybody. You could have a complete dumb ass on the forum with alot more post than i have that would pry be heard more than me just because of post count.

8 cubes net for a single 18? Way too big

Oh man, re-read the original post and realized he's working with 15's. I was thinking 18's. What a fail. Me<reading

4in. Coil, 9.25in spiders. Same, same

Making the box a little bigger willhave more gain and keeping the port the way it is will have more range musically. I would shoot for 5.5 cubes each sub after displacement

I would go a little larger on the enclosure. Your running "low" wattage to a pair of NS's. The port area looks good and depending on what type of music you normally listen to i would shoot for that 30hz target for most rap and more towards 34hz or so with almost everything else IMO