What would you consider the best amp for a Bergantino extended range mini stack (HT112ER/EX112ER)? I am using a GK 700RB-II that I like VERY much. Its a great amp with a bunch of options and it sounds more powerful than its rated. I am considering (when funds allow) a GK Fusion 550 or Mesa M6 or M9. What do you think?* * I will not even entertain MarkBass so if you mention MarkBass, it will fall on deaf ears.