Are there any specific tips to successfully build good enclosures?
Lots. First off, keep things as simple as possible. The simpler the design and construction, the higher the probability for success. If this is your first speaker system, don’t go off the deep end and try to build that ported isobarik 6th order bandpass with the triangular enclosure (that comes later) ;-] For car sub enclosures, try and use at least 3/4″ medium density fiberboard. This is an excellent material for any enclosure, although you might find a high quality veneer laminate plywood more convenient for home speakers. If you use plywood, make sure the plys are bonded tightly and the initial sheet you work off isn’t warped. You can find quality plywood with hardwood veneer on one side, which makes an attractive surface to paint or stain. When building the box, you can use PVC pipe for ports which can be painted to match the enclosure. Make sure and seal the enclosure with a good silicone based caulk, and use proper bracing for large enclosures. Any enclosure can also benefit from
