I just received 4x AD797BR which I've just tried in numerous positions in my Essence one.
I was previously running with stock op amps but with 1x 49720HA in the buffer slot and found the sound stage to be much wider, but lost a lot of bass also.
First I tried 1x AD797BR in the Buffer slot (Replacing the 49720HA) which overall sounded quite nice and lead me to try 1x AD797BR in the Buffer slot and 2x AD797BR in the Low Pass Filter slots. With this I found bass had returned, but sound stage was reduced slightly and more annoyingly the vocals seemed slightly veiled compared to before, like they had taken a bit of a back seat now.
Lastly I tried keeping the 2x AD797BR in the Low Pass Filter Slots and putting the 49720HA back in the buffer slot. Instantly I noticed that sound stage had returned and mostly I was happy with the sound, yet after further listening I noticed that vocals still sounded slightly veiled and bass is less punchy/impactful than required in certain songs. Some songs also felt very slightly 'fuzzy' sounding, like there was a bit of background noise within some parts of the music.
Now I've still not tried replacing the 4x I/V op amps and think that's probably what I should try next.
Based on the above, does anyone have any advice as to what I should try next?