Tube Tjoeb CD player in a solid state system?

Can you use the Ah! Njoe Tjoeb will an all tube or all solid state system? Does it matter much from the standpoint of compatability?

I may go to a tube preamp, and don't know the ins and outs.
No problem at all, and you will notice an instant improvement of sound especially if you are using midfy amps. The tubes will soothe what ails you.
Yes, this is not a problem. The tubes tend to smooth the signal so by the time they reach the analogue amp it is free of a lot of the annoying harshness.