Obviously, Albert's system is in a totally different league from mine (any many others here) which is pretty low budget and solid state, so I have no experience with tubes at all. I have a great deal of respect for Albert's opinions, and although I do not own "Porter Ports", his postings had a great deal to do with me ending up with the cryoed Hubbell receptacles which I now own.
I did make a recent change in my system, though, learning something in the process.
I own two Inouye Line Conditioners (which I acquired used for a song and have since replaced the outlets with cryoed Hubbells) and had been using one with my audio gear and one on my TV. I had always plugged my integrated directly into the wall, as plugging it into the conditioner with the other gear (even isolating digital on one side and amp on the other) did not seem to have positive results. After reading the technical pages of the Inouye web page (you can do a search for Inouye Line Conditioner), I decided to shift the TV conditioner over to use as a dedicated unit with the integrated. Sure enough, there was a noticeable improvement, and no noticeable loss of dynamics. Bear in mind though that this is with a 70-80 watt per channel integrated, not a 200 watt beast. All bets are off from me if that is the case. But number one suggestion from me is: don't plug your power amp into a conditioner with any other gear plugged into it.
Unfortunately, picture quality suffered on the TV and I was looking for a cheap fix, so I ordered a Quantum Electroclear for $40. This may be the big bargain in power conditioning. Not only did it significantly improve the picture quality of my TV, but I got experimenting with it in the audio system and plugged it in between my DVD player and the Inouye with outstanding results. I ordered another one, which is now breaking in on the TV (just got it a couple of days ago), shifting the broken in Quantum over to the DVD player. I have not tried it with my amp yet, but plan to when I have broken the new one in on the TV. Brand new out of the box, there is a definite lack of bass, so break in is pretty important to get the real picture with this. In any event, at $40 you would not have much to lose with the Quantum. I intend to write a review in the next while about this, and would highly recommend it to anyone seeking affordable power conditioning for their digital gear. It may well work very well with your Aranov. If not, move it to your TV for a better picture!
Here is a review posted at AA on the Quantums used with some tubed gear: