Very well build, poor sound. Sound is tiny, lack of bass, shouting mids and vocals, low resolution, not enough gain. The schematic they use is probably the schematic I tried 20 years ago. Only two of the tubes are used for phono stage. The others are power supply. There is a mistake in the power supply. It still works, but not the way supposed to be. I modified mine Ming Da phono. Totally change the conception. Add MC step up transformers also. The imrovement is amazing!!!! Now is so detailed warm, open. It's like nigh and day. Even I like it. I am very critical to the sound. Modification cost me extra $250.00