Best integrated/power amplifier under $6000


Looking for either a power amp or integrated amplifier with at least 150 watts in 8 ohms for under $6000- new or slightly used. What would you recommend? I would be using my own DAC with volume control - so just need either a power amp or intergrated without a DAC. Please share your recommendations for the best amp you have heard which meets the above requirements. 

Thank you
jozurr
Post removed 
I just sold the Rega osiris integrated amplifier,  just sold the Luxman L-509X integrated amplifier,  just got the Krell k 300I integrated amplifier,  the Krell is a lot better than both with only 300 hrs of break in,  still getting better,  to me Luxman sxxxx!, hi fi sounding to say the least,  treble is exaggerated,  and is un realistically  to resessed in the sound stage! 
Audiolabyrinth,

Thank you for your post, we knew the K300i is special just didn't know that is better than the Luxman. 

The K300i is so musical and we love the new sound of Krell being so much more organic and flowing then their earlier products

It is really nice to know that other people are hearing what we are hearing. Did you get yours with the digital board?

Dave and Troy
Audio Doctor NJ Krell dealers
@audiolabyrinth  Interesting comments on the Luxman 509x. I auditioned this integrated recently with a Luxman DAC + TAD ME1 speakers and I would not categorize the sound I heard as you described. I switched over to the Luxman separates and it was significantly better than the 509x but the 509x was rather good.
 
Your Krell 300i is getting some love at the Munich show. I might need to have a listen to this new Krell XD designs before I lay down the dollars for the Luxman m900u amp I plan on buying. 

https://www.stereophile.com/content/krell-k-300i-integrated-amplifier-sonus-faber-olympica-iii-loudspeakers-zensati-cabling