Have Luxman 509x. Considering Pass Labs INT-250 or Dan D’Agostino Progression Integrated

Ryder,  yes 590axii is terrific integrated - if your speakers are not demanding a lot of power. In some cases I felt that bass is a little shy and missing some articulation. When 507z came out, my dealer sent me well burned unit. Again the key to luxman integrates - especially latest z series is sufficient burn (at lest 300-400 hours). The 507z had deeper, more resolving bass in compare to 590. This I expected, but what surprised me is how 507z presents overall sound - more liquidity, blacker backgrounds. It’s also more resolving. I guess new technology contributes to all that. This Thursday 509z should be delivered. I did not hear it before pushing the bottom, but regardless - it should be a keeper for a long time. Even with 507z I feel like I can leave with it and just enjoy the music. Of cause all is ear and system depended. 

@denon1 , thanks for the post. As an L-590AX owner, your comments are interesting.

Thanks Denon1. I would be looking forward to your experience with the 509z.

I will have to burn 509z for many hours. The mistake of some owners (I was there too many times) to make conclusions before sufficient burn. It costed me a lot of money to ignore burn in significance, system synergy, isolation and room acoustics.

@denon1 "It costed me a lot of money to ignore burn in significance, system synergy, isolation and room acoustics."

100% agree. I like to look for low-hours gear put back on the market by people prematurely looking to move to other components as a result of this situation. Same happens with new speakers as well, by not letting everything settle in.

WORSE:

And, to your point, I was a show a 3.5 years ago where there was imo a really bad setup of Pass Labs amps and speakers. Omg it just sounded horrible to me, woah, compared to what I’d heard prior times in other setups. It was all new gear too, and break-in seemed to be limited too. The speaker pairing just did not work, at all. The cabling seemed limited, and could not say much about the room setup. Just weird.

Felt really bad for the presenters, and lack of care paid attention to the results. A total miss on that day imo. It clearly showed that good matching and setup can make a real difference. People did not stay long in that room, flowing in/out.

BETTER:

Then hearing the same amplifier(s) with better matching speakers and appropriate cabling, in a much better room setup, a very different and more enjoyable result.