Power conditioning for digital gear AND tube amp?

Jriggy,
Have you considered a medical grade isolation transformer?

Jriggy - Chris isn't interested in helping you? Did he say that, or just that you haven't been able to get in touch with him? I know he used to be full time with building BPT stuff, but when things slowed down a couple years ago, he took a full time job somewhere else. I think the BPT stuff is the best price/performance conditioning out there, so would say keep trying him. He's usually very good at getting back with customers quickly. Maybe he's been on a vacation?

But you are probably right about buying new. The big balanced units are VERY heavy, so a couple extra trips in shipping would probably eat up any savings over buying used.

I would consider the Purepower units as well.

Jriggy,
Sorry about your experience with chris(BPT).I`ve used the BP-3.5 Signature Plus(balanced AC transformer) for the past 4 years and it is simply an excellent product.Everything improves with it in my system including dynamics and scale.Despite the large transformer(65 pounds) it is dead quiet(no hum at all).Chris was very helpful and responsive in my experience with him.The benefits of balanced AC power is undeniable in my opinion.
Regards,