Any good podcasts about headphones?

Anyone know of any podcasts about headphones? I found one called Headphone podcast but its old and no longer casting. and in episode 4 they had Zack Behrbak on and iwas very interested in his thoughts about the fostex t50rp. he was saying before he would mod them he would test the drivers. and he said there where a lot of drivers with frequency problems that he would have to discard lol.

He also said that he was thinking of getting rid of Walnut said it would give hashy unwanted frequency and resonance. Walnut is my favorite wood and if not for this podcast i surely would have bought walnut headphones lol.