The YBA300 is an awesome amp, I had one a cuppla yrs ago. I swapped it for my Fender Super Bassman mainly coz the Fender has the channel switching. The YBA300 is fantastic and the Fender is fantastic. Outta the 2 I'd favor the Fender. The 6x6550 power tubes just have a certain ooomph that is sublime, and it's a great sounding amp.