Cleeds hit it on the money. You have to have specifically "replacement cost" insurance. What it costs now to replace the unit with a like unit. If you have just standard insurance they will cover the price of your equipment minus depreciation. If you paid say $5000 for a preamp ten years ago a "like" preamp today would cost $8000 which is what you would get with replacement cost insurance. With regular insurance you might get $3000.
My Krell Ref 2 preamp got struck by lightening in 1996. I paid $4000 for it in around 1983. I gave the insurance company examples of like preamps and they gave me $11,000!
My Krell Ref 2 preamp got struck by lightening in 1996. I paid $4000 for it in around 1983. I gave the insurance company examples of like preamps and they gave me $11,000!