I called Escort this AM and asked about my aging ZR3 heads, which still work but have been chewed up by normal wear, rock chips, etc. on the road.
I had a choice of refurbishing the heads for $50 first head/$39 second head or just buying new heads for $119 apiece. I was told the control box for the ZR3 and ZR4 are exactly the same so I can just run the new heads on the old box with no problems.
Is this true?
I just bought a LI Quad so I plan to use the ZR3/4 for reception only. I think I'll opt for the new heads since I already have the mounts and the box installed. Yes it's more $, but if you think about it I would be basically paying $89 for two small pieces of plastic in the refurbishment process, so at least with new heads I'm getting something for the money spent.