I tend to say "speaker in airtight enclosure", as opposed to baffled, since technically, the "baffle" is the front face of a speaker enclosure, in fact, speakers should be tested on an "infinite baffle" for publishing specifications.
Another explanatory page
Read the "Background" section on this page for "infinite baffle"
There is also possible confusion with the term "adding baffles" within a speaker enclosure, to "lengthen" the distance the back wave travels, usually in an attempt to add bass to a small enclosure and reduce internal reflections.
Greg
Speaker Baffle
A speaker baffle is the front face of a speaker and baffle design is an often-underrated aspect of loudspeaker engineering. On most speakers, the drivers are mounted to the front baffle. Specifically helping with the high and mid-range frequencies, the baffle minimizes mechanical vibrations and...
www.svsound.com
Another explanatory page
Read the "Background" section on this page for "infinite baffle"
Loudspeaker enclosure - Wikipedia
en.wikipedia.org
There is also possible confusion with the term "adding baffles" within a speaker enclosure, to "lengthen" the distance the back wave travels, usually in an attempt to add bass to a small enclosure and reduce internal reflections.
Greg