Don, another method of creating a reverse reverb is is similar to Bitflipper's but different. Choose your clip, reverse first, then add reverb to the reversed clip, print the effect, then rereverse. The reverb will precede the signal and the signal will be going in the right direction. The Beatles and others used to do this with tape by turning the reels over and recording backward, and then flipping the reels back. So much easier in Sonar.