EAT shielded COOL DAMPER

Carefully chosen materials for our Cool Damper device allows using it as a truly effective vibration- -consuming damper. This results in reduced distortion from the tube circuit, as well as vastly reducing the tendency of most vacuum tubes to act in a microphonic manner. In addition, the sound from a component utilizing Cool Dampers can be heard to have more controlled and deeper bass, a cleaner sound stage, crisper and greater dynamic range, and better focus of the entire sound field.

The Cool Damper also reduces the operating temperature of the glass envelope of an electron tube by about 10 %, which of course acts to appreciably extend the lifetime of the tubes.

Last but not least, Cool Dampers have a strong shielding function, to help reject spurious RF energy.

The Cool Damper is a result of more than 16 months of rigorous research and development. This high- -fidelity, consumer-friendly product is easy to install, and fabulously simple in design. We found, from all tested materials, that the most suitable is a relatively soft aluminum extrusion coated with a special blended mix of Teflon and Carbon composite PTFE. The precise shapes of the EAT Cool Dampers are finished with long-lasting anodic oxidation colours. This makes these cooling rings an aesthetically attractive, as well as functional, accessory for your valued vacuum tube equipment.

For flexible and easily detachable contact of the aluminium body to the sometimes erratic cylindrical surfaces of various tubes, we use six special connectors. Appropriate design and materials of the Cool Dampers compensate for the naturally resonant tendencies of both glass and aluminium, and work to transform active vibrational energy into thermal energy, which is then dissipated as heat radiation.

Tube dampers in one form or another have been around for many years, but these from EAT are so much more effective than any previous efforts that they deserve to be auditioned on their own merit.

Where do you use EAT Cool Dampers?

Inner side of the damper has 3 × 6 channels for a wide range of diameters from 19.5 to 22 mm. This means it fits to the following valves:

12AT7: ECC81, 6201, E81CC, ECC801, B309, 6060, 6679, 7728, CV455, CV2016, CV8154
12AU7: ECC82, E82CC, 6067, B339, 5814, 6189, 6680, 7730, CV491, CV8155
12AX7: ECC83, E83CC, ECC803, 7025, 5751, 7058, 7729, 6681, CV492, CV8156
6DJ8: ECC88, E88CC, 6922
EL84, EF86 and many others.

Operating Instruction

The damper you bought is from the factory already pre-installed. This means the V profiles are in the middle position.

Try to slide the Damper over your valve. In a case, damper slides down the glass or is to loosen, change the V profile position to the lower channel. In the opposite situation, when damper is too narrow or you can not slide it at all over valve body, change the V profiles to the highly positioned channel.

Now you can enjoy high fidelity sound in your upgraded system.