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Even though the main S&V business is consulting services, we also manufacture the COMPLEX MODULUS APPARATUS (also referred as "Oberst Apparatus"), used for measuring internal damping of materials, small acoustic chambers that are used for testing telephones and for loudspeaker measurements, and small-scale models of concert halls and theatres that are used for architectural acoustical testing and design. This work is being done along side our partners at Kirkegaard & Associates