Do NOT send your Levinson to www.stereorepair.net. I sent in my Levinson 23.5 to fix slight noise from one channel but it came back to me with both channels completely dead! I sent the amp back, waited 3 months, and it came back to me with the same problem but this time the amp was all scratched up, heatsinks and top panel bent!
Each time they blamed Fedex for the problems even though they were shipped in a professionaly made, double box that I paid $150 to make, and there was ABSOLUTELY no damage to the box and evidence of mishandling. It ended up costing me more than $800 and at the end I am stuck with a totally trashed amp.
If I were you I would send it to Harman for the repair and pay whatever they want you to pay. At least they know what they are doing and you will sleep better at night.
You have been WARNED!!!