My setup: Amp: MC250 Pramp: C-26 Turntables: Tech SL-1200 MkII, Pio PL-9 (multiple carts used on each) Speakers: EPI-100S and Klipsch KG-2s Cave.18x14, carpeted, EPIs in n/e + n/w corners, KG2s in s/w + s/e corners. Setup is in 5' X 6' closet w/ample ventilation. When I had the home built I had speaker wire run from the closet to the 4 corners. I have zip cord pigtails running from the pre to speaker cable and from the speakers to the speaker cable. Issue is I'm getting sibilance varying from barely noticeable to clearly there from both speaker pairs regardless of source. Carts are properly aligned, vtf and a/s correct. (Also getting some noticeable sib from cassette deck and tuner as well). I'm getting some sib through my Sennheiser 280s (not the best, I know). Very pronounced in America's I Need You, Crosby, Stills & Nash Marrakesh Express and a little less so on Gordon Lightfoot's Sundown. I've done an A/K search and haven't come up with much. Outside A/K I've seen a couple of references to a suspected cause being pigtails that don't 'match' cabling. Not sure about how legit that is. Any and all thoughts welcome here. Thanks.