Originally Posted by werewolf View Post
"rear fill" encompasses many possibilities :

- simple, attenuated L and R
- delayed (beyond Precedence, or Haas, Effect), attenuated, bandlimited L and R
- delayed, attenuated, bandlimited difference signal, L-R

there's a world of difference between these options. Some will confuse the front stage, others will enhance the front stage.
From what I understand one option will raise your stage and as soon as I feel better I'm gonna expereriment with it myself .