OK Silverhead, THANK YOU THANK YOU THANK YOU!! I got the cables and setup the 4CM and it works perfect. I am using the Firehawk for everything. Only one volume knob works on the Blackstar head and everything else is controlled by the Firehawk. I am very very happy and really appreciate your help.
Funny thing happened though, I used the same setup on my 30 year old Marshall JCM800, 50watt head and the volume knob doesn't work at all on the JCM800. Only the volume on the Firehawk works. I'm guessing with the 4CM it pulls the preamp totally out of the picture. Just a FYI.
Thanks again Silverhead!!!