It is a tube buffer for those digital signal like as CD, MP3 player, and your smart phone, that adopt 2 pcs Beijing thumb tube 6J1 which is used on more famous tube preamplifier, and designed as HIFI cathode output circuit. And those component also adopt HIFI grade one.

This product will make your signal become more warm and soft for those digital signal input, also improve revolution of high frequency, make bass become more powerful.

IWISTAO Tube Buffer with Voltage Amplified Tube 6J1 Pre-amplifier Adopt Processing Cathode Output Circuit from IWISTAO HIFI MINIMART2 on Vimeo.