Zero distortion has to be
confirmed by ear.

Each session lasts 45 minutes. We play the same material and switch live between ultra-pure-water modeand warm-valve mode, then hand you the measured data for both the system and the room.

45 minutes
Standard listening session length
3 cities
Physical listening rooms in Shenzhen, Shanghai and Hangzhou
Two channels
Ultra-pure water ↔ warm valve, live A/B
Data to take away
Measured curves for the room and the system