Recommendations and thoughts for end game speakers and amps


Good morning all. I am looking at Rockport Avior ii speakers. My dealer likes Boulder amps with these but I wanted to get everyone’s opinion first. I will be getting an integrated with HT bypass. Right now I’m looking at the Boulder 866, Gryphon Diablo 300, and the Simaudio 700iv2. Has anyone listened to these speakers with these amps? I’m looking for highly detailed but not harsh highs and mids and outstanding bass as well. Basically a set up that performs fantastic from top to bottom. If you have any other speaker or amp suggestions please let me know. Thank you! 
ronboco
Great audio store / music lover in Fort Collins

best to you on your journey, enjoy the music
You could spend about half as much and try Kii3 with BXT or Geithain if you can find them. 
I appreciate all of the great responses! 

@markc1961 
 
I just got back from my dealer with his quote. The cables he quoted were Nordost Tyr 2. Speaker , Power cord and interconnects were 15k! I am not very experienced with cabling but that seems like a hell of a lot. I will check out Iconoclast but I’m not sure of the best way to bring it up to my dealer if I want to go another route. I will be going with the 866 and Aviors. 
If anyone has any cable suggestions that would work well with the Avior ii please advise. I’m going to call Rockport on Monday and ask them their advice as well 
Rick at Audio Alternative in Ft. Collins carries Vandersteen speakers. I live in Ft. Collins and have delt with him. He is very knowledgeable and has been in high end audio for decades. PM me if you would like more details.
Good luck!
Bruce
In regards to cables.  Tell the dealer you will use your existing cables, then call Iconoclast as they will offer a 30 day money back guarantee. I borrowed the Try cables from a local video dealer I purchased from to do the compare. Turned out to be a good move as I saved enough to help pay for a better dac. As for power cables, I think improvement is dependent upon your setup and the house/rooms electrical wiring. I plan to investigate/upgrade power cords last.