Acoustics and chair

Used Barbers chair is also a great idea! Swivel, recline and height adjustable. Cool colors too!

I already suggested the dentist chair so please, lets not over-suggest here. Another tip...let your hair grow out in the back and you have a built-in sound absorbing system you can take everywhere.

I've said it before and I'll say it again. It's the foam in the chairs that's the culprit. Think of it like Sonex and other open cell foam material.