What about what I wrote is confusing??? Now I am confused...To be clearer for you, the comparison of these two preamps is imbalanced from the start. A more fair and equitable comparison would be the aforementioned 6.5 to the ARC, not the 7.5. The 6.5 is about 80% (according to VTL) of the 7.5, which is about what I attributed to the Ref3 in my auditions when comparing to the 7.5.
The 7.5 sounds light years better to my ear, and the 6.5 is on a more even footing to the Ref3.
There is nothing "imbalanced" about comparing two reference model preamps from different manufacturers, regardless of the price difference. If a higher price tag meant anything, then the VTL couldn't be compared to many more expensive preamps like the $36K Boulder and some others.
It's especially ironic that the preamp you feel doesn't measure up comes from the company with the longest history in the business and with preamps specifically. ARC/Bill Johnson virtually invented the concept of a high end dedicated preamp over thirty years ago.
It's a bit like saying that you shouldn't even discuss Rollins in the same breath as Coltrane because Coltrane is so vastly superior. Where ever you come down on these comparisons, there is a lot of subjectivity involved in picking the preamp that you consider to be the most musically rewarding. It's one thing to make your case for your favorite, but declaring the competition not worthy of comparison is a silly way to do it.