Questionable Tweak

....no wonder the shop system sounds great when we've had a spell of sanding wood all day with the doors closed, the ac on, and everything turns a lighter shade of pale brown....

Yes, The Band pun intended, but hard on the lungs.  Even dust masks start to look fuzzy....

This is the best tweak of them all:

Also trim your ear hairs. They each have their individual osscillation frequency and when excited by air vibrations they distort the sound.

Drag your wife into the listening room instead.  You may find a big sound improvement.

@noromance 

For those of us with older ears....

Hold your nose and breathe out to pressure your ears.  You will find your HF hearing acuity improves massively.  Really.   Any doctor hear know why?

Problem is it's a bit uncomfortable and fatiguing.

Wow, now I’ve heard it all.