We first listened to the system without tweaks, then tried placing the DH Cones under the laserdisc player. The entire panel agreed that the $40 DH Cones improved the sound". Al said "the mids became much more focused and detailed." Alex agreed. " I did hear a noticeable difference," he said. "There was a little more top (treble), and the soundstage opened up." Brian and I pretty much agreed.
I highly recommend a set of DH Cones by Golden Sound ($50 per set of three). They significantly improve transient response on this unit (Rotel RDP 980).
I have tested a number of isolation devices by applying mechanical impulses and measuring the results with an accelerometer connected to a digital storage oscilloscope and an FFT analyzer. I've found that conical feet....do affect the vibrational energy in both the time and frequency domains,..
Ceramic Cones that WP finds effective under a wide variety of equipment?because of their compact size, he find them easier to place under equipment than their taller brethren. Rounded tip lessen the danger of flesh-wounds.