So far, I notice a little bit of graininess at the high end at times when things can become shrill. I mostly attribute this to new crappy tubes but time will tell. Overall, I’m very pleased.
. . . my own experience with my preamp probably is not applicable to this. I have had back and forth discussions with @decooney related to Cary preamps and Cary amps, and from him I definitely have gotten the impression that the SLP-98 is voiced for a "sweet" sound (which I would think would be on the "warm" side) which should be on the opposite end of being shrill. The JJ tubes were previously discussed a bit in one of the previous threads and they generally get a bad rap, so I suppose that they could be the culprits. I’d still say if you can be patient enough (and I have always had a hard time with that, myself), give the tubes you have in it a chance to break in/burn in/mature and then see which way you think you need to go.
Although I think my own experiences are not applicable to the SLP-98, my SLP-90 is/was quite warm sounding and it made nearly everything I played sound fun and happy. So perhaps it was more forgiving of sub par source material (and with that typed, my source is strictly CDP). When I replaced that preamp with my SLP-05, what I noted was that with real good source material, the SQ was dramatically better--wider, higher . . . more/better detail and air and imaging and sound stage . . . but with poorly recorded/mixed/mastered source material . . . yuk. There are CDs with music I like that I don’t bother putting in my CDP anymore.
From what @decooney has said about his SLP-98, I would tend to think (but I may be reading into it) that the SLP-98 would lean tonally in the direction of what I found with my SLP-90 (but way more refined) as opposed to the direction I feel my ’05 goes.