Is D-Sonics audio still in business

I was wondering if d-sonics audio is still in business, as I was looking to get my son some inexpensive class D amps for his new home and was looking into d-sonic amps but I cannot find their website, as it keeps coming up as unavailable.

Are there any other high powered class D amps for a reasonable price and good reliability out there, I am not to familiar with that class of amps.