hey can u guys check this out

[mnguyen 0]

i've posted this in other forums too, im just trying to get as much input as possible.

this is for tc3000 12"dvc.

several experienced people have recommended around 2 cu, but i've done some more reading and it seems that they recommended for SPL purposes, you want to use a large enclosure and port. But im not going all out SPL, i just want a REALLY LOUD daily setup, so im just going to experiment and try something in between.

I've decided to go ahead and try 2.75 @ 33. i chose to use 15.5 sq in per cu ft since 15 and 16 seems to be the commonly recommended multiplier; the port area comes out to about 42.62 sq in. my max height is 13.5 so my width is about 3.157. i used the calculator on 12volt to calculate my port length which is about 32.964, winISD also calculated a similar length so i think its good.

last i tried to calculate the port velocity. im having trouble here, on winISD, i checked the graph and it seems to be .753 m/s @ 34/35hz, but when i tried using the calculator on CarStereo, it came out to be about .08 [8%] of mach [344.8] which equals about 27.584 m/s. im not sure which result to rely on. can anyone show me a reliable formula and calculator?

also, in winISD i've entered all t/s parameters the suggested way but i cant get it to plot the graph for my maximum SPL or maximum power.. any ideas?

[Nightshade 0]

The TC drivers tend to like much smaller enclosures. 2.75 cuft is larger than I've ever seen anyone put one of those drivers in. With such a high Bl that woofer will get loud in a box that is 1.5-2cuft and with 10-15sqin of port per cuft. You'll more than likely have to lose box volume to get that sub to reach it's full potential not to mention a little bit of port area as well.

[akjay907 0]

Dont worry about SPL unless you are competing. anything around 2 cubes would be sufficient for a daily setup, which the "experienced" people recommended.