What is the equivalent of 120 Tube Watts to SS in 8ohm. Same question except for a change to 4ohms. 
Very curious to understand and digest the technical and musical differences the effective load has on the Amplifiers and or the sound.
Thanks for looking.
What is the equivalent of 120 Tube Watts to SS in 8ohm. Same question except for a change to 4ohms. 
This varies between each amp, there is no fixed rule, tube Watts appear to be stronger than SS.
Tube amps had less power in 4 ohms and more power in 8 and 16 ohms.
SS amps are the opposite of it.