Often people talk about the differences between the 1272 and the 1073, minus the 3rd gainstage.. I am told that the old difference between the Vintech 1272 and the Vintech X-73 preamp is a capacitor on the gain stage, and that it is a small upgrade cost. I have heard the Vintech X-73 and must say I was really impressed by it and wanted one, but would'nt find enough use out of an EQ like that to justify its price. Has anyone bought a Vintech 1272 w/ the x-73's cap on the gain stage to give that different tone? If it can be done, it's next on my list. Just got my 4-pack of API goodness. ps - aint it crazy that everyone here has APIs and knows what they are all about - I'n my parts most don't know about APIs until they are done.