Harmonic Resolution Systems Damping Plate original version

https://www.soundstageultra.com/equipment/hrs_sxr_s1_dampingplate_nimbus.htm

DPII - Black - Size 14.5'x4.5"x.7" - 3.1lbs

one small scratch and ding, shown in photo. Otherwise, very good shape.

There are two primary
noise paths that degrade audio and video signal quality. There is the structure
borne vibration that is traveling through the structure and there is air borne
energy traveling through the air to the component chassis directly.

The structure borne
vibration is significantly reduced by use of Harmonic Resolution Systems audio
stand frames and isolation bases. The air borne energy and resulting chassis
noise is dramatically reduced by use of the Nimbus feet and Damping Plate
Products. The Nimbus Products significantly reduce the noise levels on the
bottom of the component chassis while the MKII and MKX Damping Plates
significantly reduce the components top chassis noise level.

The HRS Nimbus System
incorporates a highly effective design to eliminate component chassis noise
revealing a new level of musical performance. They are precision manufactured
from billet-machined aircraft aluminum and proprietary HRS polymers. A very
specific amount of mass, stiffness, and damping from these products eliminates
chassis resonance problems and transforms residual chassis energy to heat. This
is a special system utilized by audiophiles and industry professionals as their
reference chassis noise reduction system.

• Broadband noise reduction
  design maximizes performance


• Effective on electronic chassis
  and speaker cabinets


• Selection of sizes and heights
  allows system optimization


• Proprietary polymers optimized
  from years of listening tests


• High grip design creates very
  stable system


• Separate Nimbus elements
  maximizes configuration flexibility

The HRS Nimbus system is
placed between the shelf supporting your component the bottom chassis of the
component (not the existing component feet). The Nimbus feet are available in
several sizes to ensure proper positioning.

The HRS Damping Plate
MKII and MKX is the latest in damping plate technology. It significantly
reduces the negative impact of air-borne vibration on your audio or video
component. The HRS Damping Plate should be placed directly on top of an
electronic component chassis with the soft side (a custom formulated elastomer)
of the damping plate in contact with the chassis surface. The greater the
surface area covered by the damping plates the greater the improvement in
audio/video performance.

HRS Damping Plates are
produced in various sizes to allow you to create the optimum configuration for
your component(s). All visible surfaces are made from a precision machined
billet aircraft aluminum with a black anodize finish.