With these I have to say if you know, you know. I have a set of AR-3a speakers in great condition for sale. Cabinets in EC except for the top of one appears to be faded. Grill covers are in great condition as well which I removed in order to verify the condition of drivers. If you are familiar with these, you know the adjustment pots are almost always in need of help and or replaced as the contacts corrode. I have replaced them with new and now working as they should. Surrounds which are original and still very good have been treated as well.