A major consideration in answering your question regards the partnering speaker, as well as the rest of the components, which you didn't indicate. An amp alone doesn't slam, it's the complete system that all contributes to the end result in this area. One can have a very high quality amp that will deliver tons of current with a high slew rate and still have a compressed result if the speakers are not capable of delivering dynamically. So system context and room size all play critical roles in the final outcome. There is no simple answer based on the amp alone. What do you have in mind?
Class A power amp will give the best BASS SLAM?
I've been trying out various amps, looking for smooth highs obviously, but what power amp will give the best, tightest, bass slam? Let's try to keep the used price below $2000. Your input is appreciated!!!