I used to have the Hydra 8 and have had the PS Audio P1000 and now have the BPT 3.5 Signature. The BPT is so much more quiet and transperant than the other two, it really is in another league. It is by far the BEST PLC I have ever had in my system. I could not be happier.....I even have my VAC amp plugged into it. I draws 500W a channel and I finally have no limiting of dynamics that I noticed with the Hydra and it does not add anything, like I noticed with the PS Audio.
Shunyata Hydra
I'm looking to purchase a used Hydra power conditioner. As I understand there have been 3 versions produced so far, the latest being the new Hydra 8. Would appreciate if someone could enlighten me on the difference between first and second series of Hydra's and how I would be able to physically differentiate them (where possible). Thanks