How did the scope of THX standards evolve beyond their initial strict focus on the cinema environment?

Answer

It broadened to encompass home theater components, computers, and mobile devices.

While the genesis of THX was entirely rooted in controlling the acoustics of the commercial cinema environment, the standard's reach expanded significantly as technology evolved over the decades. This evolution reflected a broader desire to apply the established quality control ethos to various listening environments. Consequently, THX standards began to cover home theater components, personal computer audio setups, and eventually mobile devices, maintaining the commitment to certified technical performance across dramatically changing hardware landscapes.

How did the scope of THX standards evolve beyond their initial strict focus on the cinema environment?
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