Sencheezy

Have you taken a look at any other subs? I've owned an Zcon, and they definately love larger enclosures / larger port area. So to answer your question more directly, I'd think you'd be better with an 12". Now, have you taken a look at the DSS Ethos sub? The 12" only needs 1.5 where the 15" only needs 2.5-3cuft. So, If you were to want an 15", that sounds like the best option, may also save you a couple bucks.

Nice addition.

FML, just wrote an entire page just for it to be lost by clicking away. Long story short. If you are hurting for space, I would recommend the ethos. I say this because it was designed to excel in smaller enclosures, 2.5-3 cuft. With my personal experience, both the Zcon and Sp4 really enjoy large net volume and port area, at rms ratings. With your current enclosure, you can expect an peaky response from the zcon. And that box won't be ideal for the SP4 as it's designed for lower tuned enclosures, the more ground and pound vehicles, were tuning is at 28-31hz.

SSA has to check with nendo if i'm no mistaken, so try not to be so harsh on ssa hehe. SSA is always quick on their end, so I would imagine it's something out of their hand if it's taken this long. Also, with an pre-order, you have to take the ETA with a grain of salt also.

Nice job on the body man, I know that had to be an PITA. Sucks for what life throws at ya sometimes, no pun intended. And like the others said, it's not so much of the box being bolted down, it's the sub. I've owned one, and having it inverted like that, it's extremely top heavy. Glad to know you won't have it like that for the next build. Looking forward to more pics man. Looks like it's had an recone as well. What soft parts did you use?

Fire both in, and seal form the trunk. Biggest box, most port area, is what I recommend for that sub.

That's freaking insane

Haha, I doubt of your age you put as much abuse to them as these youngster. And by abuse I mean full tilt for hours at a time.

Bump 850 shipped to your front door at tu casa

Nice!!!

Also, can anyone input about my question in regards to port area of an BP?

Nice!

Enjoy Photos by HTC ONE M7 HDR

Bump

Excision is dubstep, not trap.

Well, the reasons for them using the ported side varies from my experiences. A larger ported side will be more efficient, thus more spl at the cost of frequency response, and some people want that type of response. Others i have talked with are just guessing and dont know what changing any of it does, so they are just doing with what they have seen. Btw, this thread should be stickied, because it is very informative and it would make it easier to find later down the road, especially since i sometimes post it for others to read. Hmmm, interesting. Because even at 2x and 3x events. World champions are using like, big 3 or even 6 to one ratio. But again, that's ported to sealed. Not as suggested by the cook book.

You ain't about that life Sen. Lol Yeah you right, i would really probably put an 5500 to it

Never heard of him, this is awesome stuff!!! Wow, you never heard of him and I have. That's a first, dude has been out quite a few years. I guess only way I remember is cause of the cool names Autobot and J2k lol Yeah, I will research him more

Don't think that exactly falls underneath the Trap genre hehe

Sean DeYoung, can you chime in?

Never heard of him, this is awesome stuff!!!

https://www.youtube.com/watch?v=1kkt4dfTSiY

So taking another look at this write up, I've confirmed the results as well with other sources. The Vf value is the PORTED section, while the Vr is the SEALED section. So can someone please please provide an explanation, why EVERY BP Enclosure I see, the PORTED section is LARGER than the SEALED section? Generally speaking, the owner will describe their BP as an 1:1 / 2:1 / 3:1 ratio . And when they describe that's their enclosure, it, again, is referring to 1 ported to 1 sealed, 2 ported to 1 sealed, or 3 ported to 1 sealed. But this is TOTAL opposite of not only the cookbook, but other sources, including this write up by Quentin. I'm looking for a real answer to this question, not just, "their doing it wrong", or "because they seen it on youtube". Like, there has to be some truth to why the masses are doing it this way. This way being the ported section is larger than the sealed section. That's the first thing I have in question. Second thing. Continuing with this write up/example that Quentin has provided: lets set it to 25hz. I think that'll be low enough and we get: Vf = 1.387 (see we used the same s factor and it remained the same) Vr = 1.814 Qbp .1.08 fb = 43.65 hz passband = 25-76.21 hz (high f3 is a bit high but I'll use the filter on the amp to bring this down a bit. gain = 3.21 If the Vf value is 1.387, and the Vr value is 1.814. Does the Vf value INCLUDE port area, or is that another factor not listed? Do we even need to include port area in this calculation? If so, then how do we calculate the port area that is needed, and add it in?

Let me know please! Thank you!