---
product_id: 43521423
title: "“EuroDamper” Tube Damper Rings Extra Large for 6550, KT66, KT88, 300B and 2A3 Power Tubes. Set of four."
brand: "eurotubes"
price: "¥9027"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/43521423-eurodamper-tube-damper-rings-extra-large-for-6550-kt66-kt88
store_origin: JP
region: Japan
---

# Reduces tube rattle Hi-temp durability Custom silicone “EuroDamper” Tube Damper Rings Extra Large for 6550, KT66, KT88, 300B and 2A3 Power Tubes. Set of four.

**Brand:** eurotubes
**Price:** ¥9027
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate Your Sound Experience!

## Quick Answers

- **What is this?** “EuroDamper” Tube Damper Rings Extra Large for 6550, KT66, KT88, 300B and 2A3 Power Tubes. Set of four. by eurotubes
- **How much does it cost?** ¥9027 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/43521423-eurodamper-tube-damper-rings-extra-large-for-6550-kt66-kt88)

## Best For

- eurotubes enthusiasts

## Why This Product

- Trusted eurotubes brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Set of Four:** Comes in a convenient set of four for all your audio needs.
- • **Universal Fit:** Designed for large power tubes: 6550, KT66, KT88, 300B, and 2A3.
- • **Silicone Mastery:** Crafted from premium soft durometer silicone for ultimate performance.
- • **Rattle-Free Experience:** Say goodbye to unwanted tube rattle in your combo amps.
- • **Top-Tier Effectiveness:** The largest and most effective vacuum tube dampers on the market.

## Overview

The EuroDamper Tube Damper Rings are custom-made from high-quality soft durometer silicone, designed specifically to reduce or eliminate tube rattle in combo amps. This set of four dampers is compatible with large power tubes including 6550, KT66, KT88, 300B, and 2A3, making them the largest and most effective vacuum tube dampers available.

## Description

The soft custom durometer used in the "EuroDamper" rings physically dampens vibrations caused by speaker vibration in combo amps. This greatly reduces or in most cases eliminates tube rattle. These are also great for reducing mechanical noise in Hifi amps. The Extra large "EuroDamper" rings measure 1.450" inside diameter for a snug fit on 6550, KT66 and KT88 power tubes as shown. The OD measures 2.150" and the thickness measures .375"

## Features

- Custom made from special soft durometer hi-temp silicone
- These will reduce or eliminate tube rattle in most all combo amps
- For large Power Tubes including 6550, KT66, KT88, 300B and 2A3
- Largest and most effective vacuum tube dampers made

## Images

![“EuroDamper” Tube Damper Rings Extra Large for 6550, KT66, KT88, 300B and 2A3 Power Tubes. Set of four. - Image 1](https://m.media-amazon.com/images/I/71yV2qTaQpL.jpg)

## Frequently Bought Together

- Eurotubes “EuroDamper” Tube Damper Rings Extra Large for 6550, KT66, KT88, 300B and 2A3 Power Tubes. Set of four.
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**Shop now:** [https://www.desertcart.jp/products/43521423-eurodamper-tube-damper-rings-extra-large-for-6550-kt66-kt88](https://www.desertcart.jp/products/43521423-eurodamper-tube-damper-rings-extra-large-for-6550-kt66-kt88)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-29*