Bandpass verus ported

[Sid420]

What is the differnce and which one can get louder and what not??

[HatersGonnaHate]

The Answer

[neonguy937]

A bandpass is more efficient ofer a select bandwidth. This is dependent on the sealed to ported ratio and box tuning. A ported box can play over a large frequency with less efficiency . In general a 4th order is more bang for your buck in a wall situation but lacks in a trunk setup. A ported box will be better for a trunk setup. . Ported are easier to build and design compared to a 4th order.

[Tarball]

A bandpass is more efficient ofer a select bandwidth. This is dependent on the sealed to ported ratio and box tuning. A ported box can play over a large frequency with less efficiency . In general a 4th order is more bang for your buck in a wall situation but lacks in a trunk setup. A ported box will be better for a trunk setup. . Ported are easier to build and design compared to a 4th order.

The above is what I hear often but in my experience I have observed that a ported enclosure will be VERY efficient at a target frequency then efficiency drops outside of the tuning range. Hence, low tuning often requires additional midbass drivers for example. Whereas a bandpass box (although by definition - produces sound over a limited frequency range) provides a consistant gain in efficiency over the entire "tuned" frequency range. That limited frequency range is (or can be) across the entire "bass" frequency spectrum -lets say 100hz - 20/30hz.

SO ported can result in Hit with no Drop or Drop with no Hit depending on the tuning frequency and application. And bandpass can result in Boom, Drop, Hit, and nastly lows al with similar gains in efficiency. (pardon the "jargon")

Disclaimer - there are near infinate variation in designing a ported or band pass box. Including box quality, drivers, installer skill, and environment etc. A good quality sound can be achieved from any box design and depends greatly on the listener as to how it sounds.

In a nutshell - Ported has greater potential to get louder due to being able to target a specific frequency. The result may not be very pleasant sounding on music however.