Tube (Primaluna) or Solid state (Parasound JC2)

Tough question.
Both are good brands. How they work with Tekton's is hard to say.
I think the only way is to trial both and see what floats your boat.
Source and Preamp will also contribute to your decision.
B

Between those two choices I would take the Primaluna tube preamp to pair with your JC 1 amps.  The JC 1 have a 100k ohm input impedance so will match with a tubed preamp no problem.  I like tubes in the equipment chain.

gdnrbob  +1