scar972, it looks like the D’Agostino Classic does not provide RCA input connectors, and as I mentioned earlier your Eklipse provides unbalanced signals on its XLR connectors. Which creates a bit of concern as to whether the Classic will work properly when provided with unbalanced signals, similar to the issue I cited that definitely exists with many Audio Research balanced amps which don’t provide RCA input connectors.
I suspect that you’ll probably be ok in that respect, but if you already haven’t I’d suggest that you raise that question with D’Agostino or some other source knowledgeable about the specific design. In the event that it does turn out to be a problem, a suitably chosen Jensen Transformer (ca. $300), or at a higher price point ($1895) an SMc Audio Flex-Connect, would most likely be good ways of converting the unbalanced signals from the preamp to balanced.
Good luck. Regards,
-- Al