I actually just won an auction for a b410 on ebay. I didn't realize that it was the model with the Celestion ceramic speakers. I couldn't find any info on this model. Does anyone here have any experience with this model? I'm upgrading from a lower end Hartke 2x15 cab. Also, if it's rated at 800W do I need to be concerned while running a gk 1001 rbII through it? That's rated at 750W. The cab is 4ohm.