Jim, the Dyna is a 47k load and the Cornet values are all stock. I'm not sure where the problem lies but I was using a passive pre which worked great with the Dyna but I had to put my Dynaco PAS 3 in line for the extra gain when using the Ortofon cart. Unfortunately the sound is not so good compared to the passive pre, which is just a selector switch and volume control, no resistors in the passive. If you have any suggestions or any questions feel free. I actually like the sound of the Ortofon better than the Dyna even when it was new, more dynamic and better imaging.
Brian