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Revel is not listed among companies doing business with Klippel: https://www.klippel.de/company/references.html

Several arms of Harman are listed, so one might speculate that they can send speakers to be tested internally on the Klippel or in an anechoic chamber. Even if they are testing as regularly throughout the development process as a company with a Klippel in the building, like Ascend, the mid-bass boost is there. It's a matter of being aware of the design choice. It may be preferable if the speakers are out into the room, for example, and don't get much boundary reinforcement in the bass.

The list says "Harman International, USA" and Revel is part of Harman.