Ben,
The air in the box of a sealed cabinet is not "negative feedback". Negative feedback is where the output is compared to the input and a difference is derived which is then applied to correct the output.
The air in a sealed cabinet is just a particular type of spring. An air spring, which has specific characteristics, of air being compressed.
There is motional feedback (accelerometers, etc...) which is true feedback. Also LWE has a unique sort of set up that is sort of feedback (more EQ than feedback, but...).
_-_-bear
The air in the box of a sealed cabinet is not "negative feedback". Negative feedback is where the output is compared to the input and a difference is derived which is then applied to correct the output.
The air in a sealed cabinet is just a particular type of spring. An air spring, which has specific characteristics, of air being compressed.
There is motional feedback (accelerometers, etc...) which is true feedback. Also LWE has a unique sort of set up that is sort of feedback (more EQ than feedback, but...).
_-_-bear