So this week, I ordered a couple of products from Herbies audiolab for my preamp. I ordered the Ultrasonic SS tube dampers and Tall Tender feet. The tube dampers were exactly as I ordered and I I am happy with them. But the tall feet were too tall for the preamp.So I decided to try them under the power conditioner. I had not realized that, with the power conditioner on a shelf (taken from the Salamander rack) sitting on the floor, it was experiencing vibrations from the loudspeakers. Teh tall Tender foot were the necessary remedy to take off those vibrations resulting in a tight bass and imaging.