Focusrite Clarett 8pre Thunderbolt. The last time I checked, all the preamps worked there might just be a little dust in them from not using the unit for a little while after upgrading interfaces. The chassis is in fantastic condition, the unit has never been mishandled or dropped, but I reduced the condition to “good” because I do hear something rattling around on the inside a little, but it didn’t appear to affect the function of the unit at all while I was using it for years.