first of all, the sounds looks like an ampeg which copulated with a gallien krueger or a trace elliot a cleaner ampeg I would say
the amp has is own caracter but you absolutelly can recognize the bass which the sound come from
I wanted to add a 15 cab to the setup but Im likely going to built a special rack for the head for having the 210 at home and a 412 at rehearsals
the 10's are celestions I think they're about 150-200 watt, anyway don't be scared because all alone the combo will pump out 280 watt because of the 8hm configuration. If you add anoter cab that's also in 8 ohm you will have 4 ohms in total , thus allowing to pump out the full 400 watts!!!
Personally, rehearsals i crank to half volume and about half gain input (depending on bass) and it is way enoug to hear every single note through a mix
what I meant by farting out is that 210 are know to be not the very best in low end accuracy, so they tend to be less precise and articulate in th low end section, but this is only on lower than A (normal A , open string A)notes, the rest is beautifull
dis mention I liked ashdowns???