This DAC is the top luxury version, upgrade to use ES's top decoder chip ES9038PRO And 2x famous UK TALEMA 30W transformers, and JRC 2x (MUS8820 or MUS8920) duo OP-amp + 2 x AD top AD797ANZ single OP-amp or others same quality/sound op-amp
Xiangsheng famous 728A tube Pre-Amplifier with tons control version, The pre-amplifier improved based on famous Wada Shigeho's Style Electric circuit, which was Introduced by Wada Shigeho in the early 1960s and gave an excellent performance.
Highlights: User-selected amplifier modes, UT (Ultra linear) mode provides greater output power and TR (Triode) mode does smooth and rich sound.(HIFI EXQUIS) Switch to pure post-stage amplifier or integrated modes amplifier, double mode
Highlights: High voltage power supply for the automatic delay control, can effectively extend tubes life. Switch ultra-linear (UL) and triode (TR) connection mode Function with remote control and high quality headphone output.