Personally IMO good solid state amps have no need for a tube preamp. The key word is good SS. If you want a more profound change using tubes, I think a tube amp has more impact than a tube preamp. IMHO
Hybrid Tube & SS
I know there are a number of hybrid integrated amps out there now that have received some favorable reviews. Have not heard one for myself yet. If you have heard them or own one , how much of the “tube sound” and soundstage is lost going this way? Saw a video from PS Audio saying that tubes are for preamps and SS is for amplification and that we are best to let each do their job. Related, is anyone using a tube preamp and a SS amp as separates?