Originally Posted by Fabian Chavez
I literally just want a sub that will sound deeper at any given frequency out of the box like my klipsch does. Plug it in, play music through it, and it has a deeper sound signature overall than your average car sub. Everyone gets what I'm saying right?
Ha ha, obviously not. I *think* I get you though-what you mean is of course not that the tone sounds like a different lower tone, but that
- The tone sounds cleaner/clearer and/or
- Very low stuff that you don't hear on typical speakers comes through.
The theoretical rolloff of a sealed box matches the theoretical cabin gain of a small sealed environment. So theoretically a flatter ported box may have a peak. There are a lot of variables, but my suggestion to you is a low-tuned ported box, whose response is NOT flat at all but rather "droops" and rolls of slowly from the upper frequencies down to the port tuning. "Undertuned" if you will.
This also tends to a better transient response that a "flat" ported box, an area I wish I had more time to simulate and investigate. The hard part about all this is that yes, tuning low means longer ports, so you need a simulator that can spit out airflow velocity, to keep it reasonable. By the way, response is by no means all about flatness, that's just frequency response. The TIME response is what our ears really perceive, and the tuning affects that a lot. Lower and lower tuning starts to approach a sealed box, but with reduction of excursion at the lowest frequencies...and a hole to vent heat out of!