I bought the BP-3.5 Signature several weeks ago. Mine sounded great (to my ears)right out of the box, and has slowly gotten better.
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