The primary reason for going with tube pre into solid state amp is that it is much easier to get a lot of power from solid state than tube circuits. While I am not a fan of solid state amps of any power rating, I am also not a fan of most high powered tube amps as well. A lot of high powered tube amps sound hard and brittle and less natural than comparably powered solid state amps.
But, when feeding low-powered tube amps, the linestage issues become more mixed. I've heard a number of tube linestages that sound good in certain setups and quite bad in others; and the differences are often unpredictable. One really must try the specific pieces together. The solid state linestages I own and have tried in several systems (Placette Active and Levinson No. 32) seem more consistent and predictable than tube linestages I have heard.
But, when you find a good tube-into-tube arrangement, there really can be magic.
But, when feeding low-powered tube amps, the linestage issues become more mixed. I've heard a number of tube linestages that sound good in certain setups and quite bad in others; and the differences are often unpredictable. One really must try the specific pieces together. The solid state linestages I own and have tried in several systems (Placette Active and Levinson No. 32) seem more consistent and predictable than tube linestages I have heard.
But, when you find a good tube-into-tube arrangement, there really can be magic.