According to the ADL700 block diagram, the signal is present at the Comp Link output jack output on the rear panel of the ADL700. I would try running a TS cable from there to a line input on the FX8 desk. Route that mixer channel through the Lexicon effects and out to the phones as normal. It won't have any of the ADL700's compression or EQ in it, but it should work fine for monitoring. Doing this will not affect the main record path.

This won't work if the block diagram is misleading and what is present there is the compression control and not the main signal.

You,re right Boswell ,I tested the comp link , but there is very little signal vs noise.

Ive tried a DI box to split to the mixer but there is more noise floor when I do it that way.
Now the noise floor humm is bugging me gonna do another post in appropriate forum lol.

Ok hit the wall on this one for the mo.

• Click “File,” “New Track,” “Stereo” and select “Aux Input” from the dialog box drop-down menu. Name the track “Monitor Reverb.” Auxiliary tracks are for routing effects, rather than recording audio.

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• Click “Send” and select “Pre Fader.” This is the alternative location to the typical “Master Fader” selection. There are two feeds from a mixing desk. Master Fader and Pre Fader. The former is what gets recorded, the latter is what you hear. They can be identical or they can be different, it’s a matter of preference. By sending to “Pre Fader,” you don’t commit the reverb to the recording, you just send it to the monitor feed. This way, as soon as the singer has finished, you can remove the reverb from the monitor mix. Once everything is recorded, you can spend as much or as little time as you like selecting the right reverb and tweaking its parameters to suit the song. Monitoring reverb doesn’t need to accurately represent the finished product, it is just to give the singer a rough effect so they can sing in a style that suits the effect.

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• Lower the fader marked “Master” to zero or hit the “Mute” button on the channel strip. This mutes this feed. All raised faders go to the monitor mix. The only way to stop them going to the monitor mix is to mute them or lower the fader to zero.

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• Click “Inserts” on “Monitor Reverb” and select “Reverb.” Click on one of the reverb plugins from the drop-down menu.

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• Sound-check this reverb. put on headphones and sing while you adjust the reverb parameters. For example, if you want more reverb in general, increase the “Mix” dial on the reverb plugin. If you want the reverb to last longer, but be quieter, increase the “Time” setting and reduce the “Mix.”

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Read more : http://www.ehow.com/how_12059944_record-vocal-reverbs-monitoring-pro-tools.html

Thanks Donny , that works a treat , just tested .:) (y)