WiiM UltrasourcefeedsFosi Audio V3amplifier
Used together in 11 real systems
Strong match
WiiM Ultra + Fosi Audio V3 is a strong match — no compatibility concerns worth flagging.
What the compatibility check found
Physical Connectivity
Pass✓ Products have compatible connections: RCA
Balanced/Unbalanced Connection Matching
Pass✓ Compatible - source supports Unbalanced (RCA) connections
Use unbalanced connections as required by destination