I have A VP160 and M80 paired with a 3channel ADA1250 for about the last 6 months.
Since getting my 1250 have had my crossover around 50 60Hz, with all 3. They all play really loud and low with authority, I previously had no idea how low the 160 plays, with it going through my receivers outputs. Since running the 160 now through my ADA male voices and bass are phenomenal so clean and clear, It almost mitigates my EP500 most of the time.

With the ADA1500 all of those choices would be spectacular and an H.P. version is the icing on the cake.

Another caution is if you get the H.P. you'll probably need some extreme subwooferage EP600 or the EP800.