detuned6, your the reason manufacturers put silly windows in their "tube" preamp. Listen with your ears, not your eyes.
Lopp, to answer your question...the 1089's are really great preamps.
What I dont get is why the 1073's are priced much higher. The 1089 and 1073 are electrically the same, and sound the same at the same gain settings.
Additionally, I would never spend that kind of money on a preamp, when there are preamps that are priced much less that will do the same thing. Look into Vintech and Great River.