The Carmen is known for NOT having Sibilant performance. You either have a damaged stylus, bad alignment, damaged cantilever or defective cartridge. The tone arm may also be having bearing issues (see if it has any play). Sometimes the uni-pivot bearings are damaged and this will create problems. We REBUILD all our products to new condition for 20% or LESS. How old is this unit?? I wish you would have called me - we are here to help with any issues - whether it is the cartridge or not.
Peter Ledermann/Soundsmith
Peter Ledermann/Soundsmith