there are a number of very refined, powerful solid state choices out there
pass
ayre
hegel
naim
in addition to luxman or accuphase already mentioned
but if you like the sound of your line mag tube amp you are not going to get that lush rounded off sound from any of the above
suggest you 'split the difference' with a tube linestage feeding a solid state power amp, or get a tubey sounding dac, of which there are several good ones on the market presently
pass
ayre
hegel
naim
in addition to luxman or accuphase already mentioned
but if you like the sound of your line mag tube amp you are not going to get that lush rounded off sound from any of the above
suggest you 'split the difference' with a tube linestage feeding a solid state power amp, or get a tubey sounding dac, of which there are several good ones on the market presently