音響開腸破肚，真空管擴大機。 Lundhl transformers, PX4 output tube, Listener 禮聲 own design of "current balanced" output stage with 12E1 as the current source. Tags: 0 comments 65 likes 0 shares Share this: Anita Schatzi About author not provided 9346 followers 9552 likes View all posts