IF YOUR AMP IS LESS THAN 90 DAYS OLD there is no charge for service, please contact us about the Advanced Replacement procedure. Our Service Fee for warranty and non-warranty repairs in the US, and covers the cost of shipping both ways in the United States. For warranty repairs this cost is all-inclusive, for out of warranty repairs there may be additional charge for non-stocked parts or excessive labor. PLEASE INCLUDE a description of the issue in the order notes, as well as the serial number.