RM Tone

I've read good reviews about the SMSL SA S3 25w x 25w, small/affordable, Class T amp based on the TA 2021chipset. SMSL now has 50w x 50w model, the SMSL SA 50, that uses the TDA 4792 for it's main chips. Has anyone tried the SA 50? The SA S3 with the 2012 got some raves as a small chip T amp. I'ld like to double the watts and raise headroom for my KG4s, but I've heard nothing about the sound and specs of the 50 with the TDA 4792s.