Csontos, as to your question toward French_fries, I will expound on guitar amplification for your edification. Guitar amplifiers have always been in mono form since inception.
French_fries, Twins are high power, but what a glorious tone!!
My 58' tweed champ @ 5 watts is loud for my apartment. It does one tone only, one I agree with, and the volume goes up to 12!