The best replacement for enclosures is attachments.

The best alternatives to enclosures are rated as following:
★★★★★  attachments
★★  cc first
★  sealed
★  ported enclosures
  enclosure
  ported
  sealed enclosures

Your alternative for enclosures is not listed? Suggest!
Speaking about enclosures, one probably shouldn't forget about letter.

Other search terms related to enclosures and their ratings are:
★★★★★ letter
★★ letters
★★ speakers
★★ business letters
subwoofers
subs
You have in mind a companion for enclosures and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of enclosures in all years. Click on graph for more.
enclosures
attachments
cc first