"I am mostly interested in the long term reliability and the current value of this amplifier, while $450 is cheap enough for an amp of this caliber is it still a reasonably good buy? "
Its a well made amp and $450 isn't a bad price, I just think you won't be happy with the highs because the 1.6 has an aggressive tweeter. The listing ID didn't show up in my last post, so here it is again.
lis7hcb9
Its a bit more, but I think its a much better amp for those speakers. Its a 6 channel amp so you can use 4 channels and do a vertical biamp, and is newer than the Aragon.