WiiM UltrasourcefeedsYamaha A-S801amplifier
Strong match
WiiM Ultra + Yamaha A-S801 is a strong match — no compatibility concerns worth flagging.
What the compatibility check found
Physical Connectivity
Pass✓ Products have compatible connections: RCA, Optical, Coaxial
Balanced/Unbalanced Connection Matching
Pass✓ Compatible - source supports Unbalanced (RCA) connections
Use unbalanced connections as required by destination