Here and there throughout the Saloon people have discussed whether to run the normal single pathway all the way from pre/pro to loudspeaker or split the signal at some point with either bi-wiring, common signal bi-amplification, active crossover bi/tri-amplification and/or variants of each. The decision for most with financial limitations is a balance of benefit vs. cost. Rather than having the discussion of potential benefits only in pieces here and there, I thought it might be a good idea to have a topic where all of this can come together with fresh discussion, with links to other pertinent posts, and eventually links from other topics to this topic as questions about this arise in other threads.