Originally Posted by Gearhead61
Hmmm I may ask you to clarify that when you're not sleepy, I think i'm catching it but I'm not sure. I never realized there was so many different aspects of building a box!
Type r's hate sealed boxes.
Sealed boxes do tend to have a flatter frequency response but in turn do have a "flatter" type sound to them. They ARE NOT boomy at all. They are very flat sounding and tend to take a lot less power to get moving.
If you have a ported box...play your favorite song normally. Then cover the port with something (wood, your hand, anything) It sounds a lot different. I mean, a lot! Thats just a small example...even thought that box would not be an accurate representation of a sealed box, it does the job.
Ported boxes, on the other hand, have a peak frequency. This means that at a certain tone (note, hz) your sub will "hit the hardest" or have the greatest sound pressure level. This is also the point that the subwoofer excursions the least. It should move only half of the excursion at any other given note.