What Preamp for ML Sequals & ESL amp?

Would like to get into "tubes," but recently purchased a pair of Martin Logan Sequals and an ESL amp for them. Got my eyes on a Shanling T-100- and would like to benefit from the tubes. Should I get a tube preamp? Or will a SS preamp suffice? Any suggestions on preamp brands/models, as well as technical info on the concerns of voltage, and ideal matching (re: the electrostatics) and how this will effect the performance of the ML's.

Thank you in advance!!!!!