ground the outlet or not??

I think it very unwise to defeat a safety ground.

Does this make sense or not - thks

I'm going with: does not make sense and could be really dangerous.

Agree, keep the grounds but if your EquiTech has GCFI breakers you should consider defeating them. When I had a 10WQ I was continually having to reset the breakers as other household appliances triggered them. For audio needs the GFCI is not really needed and it is simple enough to take them out of the circuit. This fix was recommended by EquiTech after I contacted them. 

Guys - I have the Equi-tech cabinet mount power center with an earth ground

Earth ground? No it ties Neutral and safety ground at the output like all good isolation transformers should. Neutral and ground are electrically the same point. But 1 carries current and the other is for safety AND should only be tied together at a single point. The exceptions are isolation transformers and uninterruptible power supplies.  

Keep the outlet grounded