Sibilance in recordings: your experience the same?

Sibliance on cd can be from an unbroken player. I have experienced it. My X03SE was Sibliance City for 500 hours. Now, pure bliss.

Check the absolute polarity of your ac to start.

Ensure you have isolation & conditioning for your CD player.
Dedicated lines do nothing for those items.

Sibilance, to me is the most annoying of virtually all system flaws. I remember my first foray into High End audio was disappointing almost entirely, because there was virtually no female singer who didn't sizzzzzle into the mic, or so I thought.
Extended HF, with no regard to interconnects, speaker cables, GOOD solid state, (which back then was an oxymoron), a cart for the table which could actually track correctly. That sibilance unearthed a vast multitude of problems.
"What's New", by Linda Ronstat was such a dissapointment for a long time because of this. The music, I loved, the rendition of her voice, not so much.
They obviously peaked her voice in the upper ranges; why, to give it more 'presence' I suppose.
There is a device which produces 'tube like' distortions, known as, and I'm no doubt wrong on this, "Aphex Aural Exciter", which introduces tube like distortions onto the recordings. Many female vocalists, Barbara Streisand being, at least at one time, the most visible, LOVE this effect.
In designing some speakers, one of my principal goals was to have NO SIBILANCE ADDED. Sure some recordings sound that way, but a speaker with just a few db of spike in the upper regions, and in the wrong bandwidth, can send most of us running from the room. Again, and I've said it before, a good theology for speaker designers, could be "The best tweeter I ever heard, I didn't."
This should be viewed as, HF's sound electrostatic, not 'dome'.
I'd personally rather have a slight roll off than that nails on the chalkboard sibilance.

"I'll talk, I'll talk, God, please make them stopppp!!!!!!"

To add some perspective to my initial inquiry, I use a Shunyata Hydra 4(Shunyata Taipan Helix Alpha 20a power cord to the wall) for my CDP (Cambridge Audio 840C), pre (Belles 28A), and tuner. My amp is a Spectron Musician SE MK2, plugged straight into the wall; speakers are Von Schweikert 4SRs (version 1), rear tweeters turned all the way up. I did find that changing the IC cords from RCA to XLR between the pre and amp made a slight reduction in sibilance. Over the last couple of years I’ve added a number of power conditioning tweaks, piece by piece, in and around the system...and I really need to do a little controlled experimentation to identify what they do/don’t do. The tweaks include two Blue Circle Noise Hounds and a PS Audio Noise Harvester plugged into adjacent outlets. Any thing jump out?