Telephone: Primary: 617-965-6984 Office address: 99 Florence Street, Chestnut Hill, MA 02467-1935 Mailing address: 99 Florence Street, Chestnut Hill, MA 02467-1935 Electronic mail: Calibrations: Calibrations@PerfectHomeTheater.com Sales: Sales@PerfectHomeTheater.com Customer Support:  Support@PerfectHomeTheater.com General Information: info@PerfectHomeTheater.com Webmaster: Webmaster@PerfectHomeTheater.com