The term "Made in the USA" has a specific meaning, and is enforced by the USG Federal Trade Commission. See this
link. A lot of companies are wary of these Made in the USA guidelines with modern complex supply chains, and compromise with the unregulated "designed and engineered" statement. In the case of Harman, however, since they moved driver production out of the US I doubt they could have maintained the Made in the USA label for Revel products, even if cabinet manufacturing and final assembly were still in the US. A friend of mine in manufacturing line design has repeatedly told me that the cost of complying with US environmental laws for anything involving sprayed-on finishes is so high that it makes sense to move to Mexico, even if the labor costs were equal, and they're not.