MCH is a California corporation organized in 1987 to provide comprehensive consulting in all areas of Acoustics and Media Systems. From our offices in Los Angeles County and the Phoenix, AZ area, we have completed over 3,000 projects (many international) including higher education facilities, performing arts, auditoriums, music recital and rehearsal rooms, concert halls, theaters, studios, courts, churches, hotels, mixed use developments, assembly spaces, medical facilities, research laboratories, museums, renovations, libraries, and convention centers.