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
Quicksilver V4s. Tons of power, stellar build quality, and can tailor the sound with different tubes. Once you do tubes you'll never do transistors again. 
@audiotroy 
Looking for either a power amp or integrated amplifier with at least 150 watts in 8 ohms for under $6000- new or slightly used.