Just not true. First off, no enclosure has an 'infinite flat response'. Second, ported boxes WILL have a very sharp rolloff below the tuning frequency. Much steeper than the rollloff of a sealed box. Third, ported boxes will have much more significant group delay, both amplitude and slope, which make for less accurate bass. Fourth, ported boxes will have power handling problems below the tuning frequency, that sealed boxes just don't have.


As John said, ported boxes can be louder, at certain frequencies. Sealed boxes will, however, have smoother, more predictable response, and will play louder, lower, than ported boxes...this is especially true in the car, where cabin gain usually almost matches the roll off of a sealed box. I've posted the graphs for Tim's eclipse subs, over in that thread. Here's a link to the attatchment:

https://www.tamparacing.com/forums/a...se-12-freq.jpg

The blue line is sealed, the orange is ported, and both are given the same cabin gain simulation. But more importantly, frequency response is really not the issue with ported boxes and sound quality...its group delay, phasing, and the resulting transient response. All will be better with a sealed box.

All this assumes proper box construction. So, we won't consider how much more difficult it is to build a 'proper' ported box, or how much more forgiving a sealed box can be.

Toby