Thanks for everyone's assistance... I redid the rack to include the Lexicon external hardware unit. I hooked it up per the direction of everyone. Actually, it is the same way as I hooked up with my Onyx... Did not realize it was that simple... Now I have a good reverb... Unfortunatley, at the cost of using one AUX and one input, whcih is OK since there a few to spare on both sides....
Something that I noticed, for now, is that the AUX main output volume does not go to unity when the slide is all the way up... could be the balanced cable I am using...
Other than that everything seems to be working... Will play around a little more.. But again, I really did not want to do this, since the software on the Ipad or the DL32R hardware should easily take care of this.
Just to recap Mono setup:
1) Hookup Lexicon mono input to AUX1 0- 1/4" to XLR female
2) Hookup Channel Input, say 30, to Lexicon mono/left output
3) Go to AUX 1 - place fader to unity - place channel to post fader
4) Go to channel input 30 - turn gain up and then fader to the point the hiss is no that loud
5) THen go to the microphone input, and on AUX 1 slider, place as much reverb you need.
Thanks for everyone's assistance, and I hope Mackie/LOUD improves the reverbs in the near future.
Taki