Insurance for system

Thanks everyone for the great information which I will follow up on. It is a treat to be able to post about an issue and get educated responses like this.

I concur with the posts indicating your home owners coverage on it own is insufficient, but getting a rider should be no problem. While my HiFi gear fits withing my home owners coverage my astronomy gear does not.

When I did my riders with Safeco I was told to bundle multiple items together to create "systems" and get a rider for each system. This was more cost effective. I was also told to just state what I wanted it insured for as some items cannot be directly replaced and there could be much debate in replacement value. So for my one telescope I simply said $50,000. This included the telescope and several high end eyepieces. Think amp, pre-amp, turntable, speakers. In the end I'm paying to insure an amorphous $50,000 thing.

100 k and you don't know how to insure it ?

 Yes, photos make it easier… and receipts… well, how would you not have these. 

I  buy the majority of my components used... no receipts. That's one way we wouldn't have receipts. 

……some companies will allow you to add what is known as a ; Rider to your homeowners policy . It has been previously noted that adding the value of your stereo along with the media may create a limit that exceeds a personal property limit on your policy . Valuation is the limit as replacement cost is the correct avenue . However , replacement cost with “ same like and kind ‘ could be an issue at a loss especially if you have some older equipment that is irreplaceable . I get nervous on the value of my CD collection as some cannot be replaced and that’s where a claim can go side ways as along with our equipment we know the value of it in the marketplace but insurance companies do not . We have an emotional attachment to our music and gear. The Riders I have mentioned are not inexpensive ( what is ) but when a loss occurs and we believe that they never will , but they do you will be glad you have it in place. One other point to consider is if you live in a flood zone or an area that is prone to tornadoes. That is a whole different ballgame but if you are in those zones , a conversation with your agent and company is a must . 
This is a great post that we as audiophiles really need to look into and feel comfortable about the coverage you have in place because all that it takes is just that one time so be diligent about it . 
I retired from the insurance industry after 42 years . Talk to your agent and make sure you are covered and check different companies .