Three Kingdoms + RS241 SET amp "1.8watt low output + TQWT fostex FE164 +T900A"

Theree Kingdoms "Resurrection of The Dragon"
trac 19 " BATTLE ON THE PHONIX HEIGHT"

tested ; how are eficiency of my DIY speakers driving with the my DIY TUBE AMP Low output.
it is just 1.8 watt output on single ended class A1.
system:
CD transport Cdpro2 tentlabs DIY.
Tube DAC Non oversampling AD 1865N-K
Tube B406 PREAMP anoda follower Single stage.
RS241 ultralinear SET Power ( 1.8watt class A1)
FE164 TQWT +T900A speakers
interconnet cable silver DIY.
Speakers cable siltech