People talk about the Fender basses revamp in 2008 but they forget that they had a massive amp overhaul where they said screw class d let’s give gigging players big old school transformers but update the amps with usable features. I’ve an 800Pro too and the Pro and the TB are about 12kg and vey manageable, easy to lift one handed and just have a presence into a decent cab which is smile inducing. I enjoy these amps!