IMO, Shunyata Hydra - no contest. Re: amp, you might consider a Pass Labs (different models, e.g., 150, 150.5, 250, 250.5)- will add a bit of sweetness while retaining great dynamics and transparency.
Which line conditioner is best for my situation?
I am getting Mag 3.6's (maybe 3.7's) Will probably run a SS amp like a Bryston 4B-SST2. Am considering adding a tube preamp to sweeten the sound. I have a dedicated AC line circuit (20 amps). One stereo salesman says just to get a Richard Gray RGP 400 which lists at about $800. Another salesman says to get a Furman 20i at considerably more money. Any suggestions would be much appreciated. Thanks. Laurence.