You’ll see a recent thread about selling Hifi. The same applies here. If you’ve all the packaging, manuals, etc., you can get top dollar on eBay. If you can’t post your Denon then your audience is restricted dramatically.
Used AV kit mostly dates terribly, however good it was. Search ebay with Sold filter selected or look at Hifi Shark for more price outcomes.
Used Denon AVC-A1SE Surround amplifiers for sale on 400+ second hand hifi sites & shops. Use Hifi Shark to monitor pricing and global availability
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