Users' questions

Is a bandpass box better than a ported box?

Is a bandpass box better than a ported box?

1) Larger bandpass enclosures will have a smoother and deeper frequency response than a smaller bandpass enclosure but not as smooth as sealed or ported enclosures. 2) Smaller bandpass enclosures are much more efficient but do not pass as wide of a band of frequencies.

Do bandpass boxes Sound good?

Bandpass boxes are extremely difficult to design. There is no such thing as a ‘standard’ bandpass box, they are very specific for the exact speaker that is going in it. Putting two high-dollar 12″ JL subs in a ‘off the shelf’ bandpass box will not sound near as good as a single 10″ in a proper bandpass box.

How is bandpass box calculated?


  1. Determine the volume of the box.
  2. Select Box Calculator from the Box Calculator menu.
  3. Enter any additional volume.
  4. Set the length and width dimension the fit the speaker and port.
  5. Click the Calculate button to determine the dimensions.

What kind of bandpass does JL Audio use?

At JL Audio, we only recommend single reflex bandpass designs (as opposed to dual reflex or series tuned bandpass designs).

How does a subwoofer use a bandpass box?

Many home sub/satellite speaker systems currently use bandpass designs for low frequency reproduction. In a bandpass box design, the woofer no longer plays directly into the listening area. Instead, the entire output of the subwoofer system is produced through the port or ports.

How does JL Audio subwoofer system work?

This information is then used to program JL Audio’s CNC woodworking equipment. The enclosed subwoofer systems are then assembled by skilled craftsmen. This flawless combination has made JL Audio the performance leader in engineered sub-bass solutions.

What are the characteristics of a bandpass enclosure?

Choosing the right amount of power and carefully setting amplifier gains is very important in order to ensure long term reliability. Bandpass enclosures can be divided into two basic types: single reflex and dual reflex. In a single reflex design, the rear chamber is sealed and the front chamber is ported.