[Mr.T]

"Don Pearce" wrote in message
news:4a30f001.619413625@localhost...
Phones that isolate the HF well also tend to deal with the bottom end
without resort to active cancelling.

Not so, LF is a lot harder to absorb than HF.

You don't absorb it, you block it, which is not the same. Stiffness
and a bit of mass does the job.

Solid concrete headphones perhaps?

Fact is NC headphones were invented to reduce LF noise because other methods
weren't satisfactory for many people.

MrT.