I picked up on of the 1250s back in the fall sale. The clarity is quite noticeable especially with a lower setting through my M80s and VP160. A lower setting 60 or 40Hz has the power to go. My VP160 seems much fuller in the lower notes, as to what I was experiencing with it trough my A.V.R.

Though as to whether or not the amount of power is overkill, is so subjective {Party day, showing off to friends, reference movies etc.} Mainly get the most power you can is a great rule.

I think the 1500 has to be a totally awesome unit from my experience with the ADA1250.

GO for it!!!