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Bass Reflex always will work, what is the min and max litrage for this driver?
What effect does the size of the box have? I wouldn't want to use one too small that would rob bass extension.Dave
Vent size is based on the box size. Find a sealed size that seems appealing, then add the "vents". You can use these. But you can also make your own following about the same vent to cubic foot ratio. You can make the holes smaller, too. You can cut strips of some fabrics, and wind them into a spiral, and insert them into holes. You want to make it so you can breath through it but it would take a long time to exhale. I guess you could buy one vent, see what it's like, then make your own, too.
With a VAS 135L a BR enclosure will no be too big.Aperiodic are suited to small enclosures simulate a big box that seems is the case.
When one has a driver of such high Qts he only suitable enclosures are OB (where the dipole effect reduces the effective Q, or an aperiodic box. Any box with a hole in it that i smeant to enhance the bass is going in exactly the wrong direction.The "damped hole” in an aperiodic box is intended to try to reduce the Q, reduce the bass hump as the driver rolls off. There are a number of approaches to an aperiodic box. In this case, i would suggest a box as large as possible and then start putting holes in the back (or as one diyer with 15” Audio Nirvana did, no back at all). The nature and placement of damping is critical. The big box should be heavily damped, and the holes in the back also damped (i most often use open cel foam for this).dave
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