Fiio X3 改機一問!

請問各位師見絲打,小第想問問...

1. 知唔知邊度可以比錢改dac and ouput amp chip?
2. 係咪正好多?
3. 改機幾錢?

利申:小弟用緊x3+pear 10pro改+ jdslab amp