This may have been already mentioned, but a website called Audiogon (audiogon.com) has a service called "BlueBook". It requires a subscription and costs $9.95 a month. It records the sale price of all gear sold on their site, going back to the late '90's. You can lookup the brand, then the type, then the model number for the gear you are selling. For most gear you can get data base on actual transactions. If the gear has no transactions, they sometime "guess" based on other similar items. These prices can serve as starting points for online selling, whether on Audiogon itself, free sites such as Audiomart, or by the old man himself, eBay.
Selling my dads top of the line system
My father just passed of a stroke suddenly. He was very big in the audio game. He as Revel Ultima Salon 2 speakers, 2 mark levinson model 536 pre apps, Mcintosh C50 pre amp, Cambridge Audio Azur 751BD blue ray player, at least 3 Audio quest water cabels, 2 or more viper power cables. This is what I know of that he currently has hooked up. What is my best option for selling it? Should I bundle it together, or piece it out? He loved his system so I don’t just want to sell it for nothing, but honor his memory and make sure the system finds a good home. If I did not have 3 kids Home audio stores by me have been no help. Its all in premium shape, with the boxes, manuals, and remotes.