Another vote for an Acoustic Research solution. In my case I replaced my Esoteric K03Xs because it was sharp on the leading edges, no matter what cables amps preamps or speakers. I was lucky to find an AR Ref CD9. This is an all tube affair and significantly fixed the problem I’d had. All of the highs became clear transparent and never harsh. I use the DAC for streaming via coaxial and find it so much better than the onboard DAC in the Pioneer N70Ae.
The CD9 plays into a SS AR LS10SE and Luxman M900u to a pair of large horn speakers with super tweeter. No harshness or sibilance at all but lots of airy highs.