For your information

Just saw your post and tried it. Worked nice  Thanks

Stock jumpers are often junk. The first  Audiophile Law I wrote, published at Dagogo.com many years ago, was  about replacing jumpers. One of the first things I did when I bought Magnepan speakers was get rid of the horrid jumpers.  High quality jumpers can be made to order by many cable manufacturers. You will note distinct sonic differences between copper and silver; easy way to tune rig.