After a couple hours of listening again in detail comparing one to another, I came up with a different opinion then I did before..

I thought maybe the E-A7 was recorded with reversed left/right channels ( stereo image just didn't sound right, I reversed the L/R , but didn't notice a big change).

Every demo could be made to sound better with adjustments to EQ (mixer).

The Genos was not the clear winner as I thought in the beginning.

The PSR970 remained dead last .

PA4x, to me lacks fullness/clarity and seems very effects oriented.

Not even close.. SD7 has the fullness, clarity, realism, richness, and bass and drums are unbeatable.. My opinion , it was the best demo (sound).

Here is my "new" lineup.

1. SD7
2. Genos
3. toss up.. PA4X and E-A7
4. PSR970

I was very open minded in my judging.