I use a VAS/Cayin mono tube amp unit on my center channel. The feed comes from a Cayin tube pre-amp with a center channel output for phono play and a Sony center channel out pre processor for SACD's. Also, all the amps in the system are Cayin tubes. Great sound, especially the phono materials. The trick on the center channel is to get the balance correct. Takes time but is worth the effort.
