Phishin Phool
500+ Head-Fier
Personally I would quote them exactly what you spent on headphones because there's likely going to be depreciation on your items with the insurance claim should something happen.
I was able to trade time/labor helping somebody out so I didn't' have any $$ invested in headphones so the money I had saved for them instead went to Lawton cups, tune up and new pads which was prob close to $550. Since I will not part with these I think I'm gonna quote $600 to the insurance company and call it a day. With receipts for all the add-ons and adding the cans in as well I think they would be OK with that. So far I am loving them though as they have actually made me set aside my Beyer DT 990 pro which I love. These for anything fun and. HD600 for analytical/critical listening I think.