Need some advice. I want to get a good audiophile integrated amplifier for my system. Currently using a cary sli80 with some thiel cs3.7 speakers. I'm trying to decide between pass labs int 150, jeff rowland contenuam 500, or mark levinson 383. Haven't heard any of the amps but I've read a verity of reviews on them.need some advice on witch one to get.any feedback would be appreciated thanks. 
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Read about the MF NuVista 800 at Audioshark. It is outstanding. I would suggest an audition if you can. Good luck!
Kr audio va 900
Out of the choices you have given I would wholeheartedly recommend the Rowland Continuum 500 or S2 or similar from him. You will not be disappointed and the synergy with the Thiel’s should sound wonderful. CODA or Pass Labs would be next on the list.

Let us know which way you go!
I would stick with the Cary. Add a tube DAC or CD player.
my experience with the ML383 and Maggie 1.6 was grainy and 2 dimensional

ymmv fwiw