Ok, First question..."I connect the apogee 200 and dm4800 via AES cables I/O. Would i still have control of the dm4800 monitor volume control."
If your rosetta's aes output is assigned to 2 channels in the DM, and those two channels are assigned to the STEREO buss, you definetly have monitoring control of the Rosetta's output signal. That's typically how you would do it. Mic preamp analog out into Rosetta's analog in, Convert to digital in rosetta, then aes out to DM's aes in, assgning DIN-1 input channels to stereo and to your DAW's input for recording. With your monitor speakers plugged into the back of the DM, monitor the DM's stereo buss out through the CR outs, or Stereo XLR outs, and there you have it.
Second Question...."If i go pre amp to analog in apogee, AES channel 1 out apogee to dm4800 AES in, dm4800 stereo out XLR (for monitor volume control) to apogee channel 2 in, apogee channel 2 XLR out to both monitors.
Would this damage the apogee or affect the DA sound.(?)"
First, it wont damage the sound if you watch the metering on the rosetta and keep it below 0db. The CR volume is essentially a line level fader in this case.
However...
I can't possibly see a reason for this. The best part of the Rosetta is the conversion and the use of the CODA function (so i'm told). If you went stereo XLR out of your DM you are using an analog signal. This output is not digital, so it's the DM that has done the conversion. Then, if you plug that into your Rosetta, Analog XLR in, then plugged your speakers into the Rosett'a XLR outs, you are not doing anything different then just plugging your speakers to the stereo outs of the DM. There is no volume control on the Rosetta, so really, the rosetta is not doing anything for your here.
HOWEVER.........., you COULD send the STEREO buss out through the AES outs from the DM, and plug your speakers in to the XLR analog outs from the Rosetta. You WILL have volume control in this case using the main STEREO fader.
This won't work though, when it comes time to send your final mix through the rosetta to use the coda funtion. You would likely send the stereo buss from your DAW directly through the AES out to the Rosetta, and you wouldn't have volume control for you monitors in that case, without effecting the final mix volume as well. Yet another reason to use the DM's CR or Stereo XLR outs for your monitors.
Third..............."I would like to continue to use the monitoring section of the dm4800 if i can and not have to buy external monitoring since i sold my presonus central station when i purchase the 4800."
Then why do you want to plug your monitor speakers into the rosetta's output?
I may be confused about what you want to accomplish, but, generally speaking, most peolpe use the Rosetta for the above mentioned reasons. To do that, it would be Preamps analog into rosetta, rosetta AES Out (DM clocked to rosetta) to a pair of channels in the dm. Assign those channels to the stereo buss, and also send them out a stereo track in your daw (doesn't have to be a stereo track btw). use your CR or stereo xlr outs to your monitors, using volume control on the DM (CR) or the main STEREO volume fader.
And typically, you would send your final mix AES out into rosetta, make CODA adjustments as neccessary for best sound, and then send that effected stereo back out via the rosetta's AES into a stereo track in your DAW and record, all while monitoring through the DM's stereo output to your monitors.
