Originally Posted by
bocastephen
Boom’s biggest challenge was developing an aircraft that could reach supersonic speed without an audible sonic boom,
I don't believe that was ever their intention. They only mention of noise that I see on their website refers to engine noise (no afterburner). The site says "2x faster over water" and "20% faster over land". That would suggest a subsonic cruise speed over land.
There are others working on minimizing the sonic boom but not Boom (Technology).