For speakers which can accept 2 amps (4 speaker posts) what is the generally accepted fact as to the set-up which yields the best sound. Is it using 2 monoblock amps to power each speaker or is it using 2 amps which are 2 channel each and having each amp power the "lower" set of speaker posts in both speakers and doing the same with the other 2 channel amp for the "upper" set of speaker posts. Sorry if I don't have the lingo down exact. Your guidance will help me determine what equipment to purchase next. Thank you.