Searching Krell CD-1 ICs

Hi Audiogoners, I have a very old (but gold) Krell CD-1 CD player but 2 of the ICs need to be replaced. They are DSD9118 and DSD8744. I've been searching all over the Internet to purchase these parts but unable to find them. I have some sentimentality attached to this player and would like to get it working again. 

I have asked Krell online and they have discontinued servicing this model about 2 years ago and unable to help me. 

Can anyone help on where to find these parts?