Can Monoblock be split for analog and digital

That's what I'm afraid of and I think you are correct. Even with a high quality switch degrading has to occur. 

You will loose sound quality with any switch.

It sounds like the switch is the way to go. Just need to find a good a quality switch. The ones on Amazon are by Douk audio, I have read some issues with them. I would rather pay a little more for a better quality switch, I could use 2, two way switches. I think? Each monoblock would then feed the preamp and the DV2 dac? Then just switch between dac for digital and preamp for analog? If anyone knows of a company that makes a higher quality switch please let me know. I appreciate the suggestions... 

2/3 ins and one out on a switch, one or the other to same the pre or amp.

https://www.amazon.com/Nobsound-Audio-Balanced-Converter-Selector/dp/B07R1XCNHG

Regards

Switch

Thank You Jaytor...

Something like this would probably work. I'm not sure how good the connectors are, but it's relatively inexpensive to give it a try. 

https://www.amazon.com/Balanced-Audio-Switcher-Passive-Splitter/dp/B07THHFJMT

Jaytor, what kind of passive switch did you have in mind? You have the configuration correct. As you indicated the switch would be needed to keep the low-impedance out.

It's not the ideal situation Erik. Even in bypass it stifles the DV2, I'm trying to utilize the volume control on the DV2. As Jaytor said the unpowered device would still be a low-impedance load. The monoblocks are Classe' CA M600's. The passive switch is a good idea but it will be a PITA. I like the DV2 direct to the amps. I appreciate the input...

It's really not ideal.  The apparent output impedance of a solid state device when turned off or muted is complicated.

Why don't you try using the SSP in bypass mode??

If I understand you correctly, you're suggesting having the output of two different devices connected together to drive the same amp, with the expectation that only one would be powered on. 

Depending on the circuitry of each device (which I am not familiar with), it's unlikely this would provide the results you are hoping for. Most likely, the unpowered device would at least provide a low-impedance load which would be difficult for the powered device to drive, and it could result in damage to one or the other device. 

I think you are better off adding a passive switch at the input of your amps to switch between two inputs. 

Thanks, Parasitic oscillation is variation in output/voltage or current that can result in noise. We shall see...Or Hear..

I'm no expert, but it seems the worst that can happen is you get some ground loop hum. Not saying even that will happen, just its the worst I can imagine. No idea what you mean by parasitic loss, other than yes of course adding a splitter is certainly not going to be an improvement.