It is said that about 500 pairs of the DD55000 were sold worldwide. Looking at these forums, eBay, etc. I would guesstimate that there are single digit numbers in the US.

Does anyone have info on the production numbers of the S/2600 and S/3100 and how many are in the US? I’m not sure if Greg Timbers still visits this site regularly, but I am also curious why the later Everests dropped the asymmetrical horns. Was this due to concerns about audio quality, or had the K2 line been so successful that large symmetric horizontal horns were required for customer preference?