Any Value for these Items? Adcom/Krell

My father recently gave me a couple of high end audio items from the 90's and I'm wondering if there is any market for them?

First is a Adcom GCD-750 CD player. He says it works but at some times becomes distorted. So I would try to move it as is.

Next is a Krell B&W 800 series bass alignment filter. It is in good working condition.

Thanks in advance for the help.