Yes, it is a special speaker fabric on the lower and upper doors called acoustic fabric. That is the center wolfer door, the upper center speaker and the right and left speaker.
The center gold type doors are a brass mesh, just for looks. The other doors are nice solid detailed painted doors. This in our showroom in San Francisco Design Center of Closet Innovations / Innovative Design Group on 101 Henry Adams, San Fancisco.

Actually, as I have been told many times by a coordinating technician at SOUND ADVICE in Napa, the center speaker should be lower so it hits your ears not your ceiling. This look in our showroom should have been with the speaker below, but this is how many clients want it.

Can this be duplicated in a smaller version ?

Yes, absolutely. Everything we did here is custom; size, color, speakers, and TV size. Thanks,

can you tell me how many and where the lights are in the wall unit. Thanks