Blackstar have just issued a new series of amps, The 'Silverline' series, which appears from the specs to be along the lines of the Boss Katana series. There are some videos on Andertons website, where the Blackstar man introduces them & explains how they work & all the features. They have Celestion speakers, & range from a 20w combo up to 100w heads & cabs, & all inbetween. The main difference from the Katana seems to be that you can choose which valve sims you want to use, out of around seven. Of course, there are no real valves in it. The demos from various stores online are very favorable & they appear to sound very good.
Just putting it out there.
Tony.