mzpro5 - Unless you are talking about problems with the actual install the new FW is definitely a step up from the old one. For me the 7.1 front panel select and the delay readout alone make it worth while. I’m only aware of one problem with the new FW and that is with the 2 channel sub offset that only manifests itself when you have a large (negative) attenuation on the sub channel. Sure there are lots of features we would still like to see implemented but this FW is a step in the right direction.