The full manufacturer's warranty from Boston Acoustics is only valid when the Boston Acoustics NCB8 In-Wall Speaker Mount is purchased from an Internet Authorized Dealer. We will match any Internet Authorized Dealer's best price on the Boston Acoustics NCB8 In-Wall Speaker Mount. The Boston Acoustics NCB8 In-Wall Speaker Mount may be referred to by the following terms: 690283189143, NCB8, NCB8.