TAS5754MDCAEVM: TAS5754M THD+N TEST

Dear Sir,

We tested TAS5754M EVM THD+N performance as below but looks a little bit gap with d/s shows, is it make sense for test result?

PVDD=18V  PO=1W  INPUT=1KHz  LOAD=4ohm (LINE IN)

PVDD=18V  PO=1W  INPUT=1KHz  LOAD=4ohm (OPTICAL)

Thanks, Ian.