Sony Audio/Video Control Centre. Sony 5- CD changer disk exchange system. Bose Base Speaker. These were used for years in a restaurant and worked until they were put in storage. Have no way of checking to see if they work now. They turn on okay, the cd changer drawer seems to be broken and shows an ERROR message. Something is loose inside the Bose speaker but was always like that before being put into storage. If you know about these things and think you could use them or fix them or use them for parts - go for it. Text message or email is best - happy to answer any questions (if I can). Will just be taking them to the recycling depot if no one wants them at the end of the month.