loading.gif
Notes
Login Sign Up Shopping Cart English
Add to my favorite categories
category Other
Path Yahoo Bid > Home Appliances, Audio & Video, Camera > Audio Equipment > Other
Remarks
Add my favorite keywords
Keywords DAC
category Other
Remarks
Join my favorite seller
Seller Gg3iQ***
Remarks
Add to my blacklist seller
Seller Gg3iQ***
Remarks
Yahoo Bid Home Appliances, Audio & Video, Camera Audio Equipment Other
レアメタル!純度99.9%タングステンインシュレーター 厚み4倍 Type III 4個セット(CHORD DAC64 QBD76 DAVE,WADIA、Esoteric等に)
 
        

出品は4個1セットです。

  • Product Quantity
    : 3 / Remaining:3
  • Starting Bid
    :3,469円
  • Highest Bidder
    : / Rating:
  • Listing Date
    :Jun 05, 2026 00:30
  • Bidding closes on
    :Jun 12, 2026 00:30
  • Auction Number
    :m1214725188
  • Item Condition
    :New product
  • Auto Extension
    :No
  • Authentication
    :Yes(Description)
  • Early Close
    :Yes
  • Can I return the product?
    :no
  • Description
  • Q&A ()
  • Estimated Cost
  • Report an Issue
Notes
  1. Plug-in electrical appliances are only shipped by air (shipping by sea requires commodity inspection)
  2. Please pay attention to the local shipping fee in Japan and confirm before placing a bid.
タングステン インシュレーター  (純度99.9%)   厚さ5.4mm x直径9.4mm   質量7.12gを 4個セットにしての出品です。
落札数量1で4個セット、数量2で8個セット 、数量3で12個セットとなります

レアメタルの国際価格が急上昇しており、タングステンの価格は金やプラチナ同様、将来的に値下がりの見込みはありません。

電子天秤等の高精度なはかりで質量を量り、電子ノギスなどで正確な外寸を計り(mmからcm必ずに変換)体積を求めます。、
(円柱の体積=厚さx半径x半径x円周率)
質量を体積で割れば比重が算出されます。比重はぴったり19になることでしょう。(言っておきますが測定機器の精度誤差範囲を考慮してくださいね)
元素比重表から該当する物質はタングステンです。

比重値が近いものとしては純金、プラチナ合金ですが金、プラチナをこの金額では売れませんし、色・硬さも違うので当出品はタングステンということがお分かりになると思います。
タングステンは非常に硬い元素で 炭素などと結びつくことで、さらに硬度が高くなり、モース硬度ではダイヤモンドの10に次ぐ、9にランクされます。
高比重がもたらす物理特性によりオーディオ用の振動遮断特性がすばらしいのですが、非常に高価なレアメタルですので、無垢材での使用例は少なく
TechDASのレコードスタビライザー(40万円)くらいにしか使用例が見当たりません。



ちなみに合金ならインシュレーターになったこともあります。


FOSTEXでは金属粉をシートに混ぜた使用例があります。


振動特性が良いので楽器にも使用され始めています。

タングステンは、金とほぼ 同じ比重、銅の約2倍です。
http://www.hydro-crane.com/spec/specific-gravity/index.htm

海外提携工場の協力で円柱状の無垢材タングステンを低コストで制作できたのでスライス加工してインシュレーターにしました。
レコードプレーヤー、CDプレーヤーなどの回転系メカニズムを持つ機器はもちろん、振動発生源になってしまう大型トランスを搭載するアンプ、DACに抜群の効果を発揮します。

高価かつ、硬い素材なので小型のものしか制作できませんので、機器付属のインシュレーターの下に敷いたり、
お手持ちののインシュレーターの上に置いてお使いください。

私感ですが、音圧が上がった様に感じられ、低音の引き締まり、中高音の見通しが良くなりました。
ボリュームを下げても躍動感が感じられ十分満足できるようになりました。
再現の難しい奥行方向にサウンドステージが拡大し、収録スタジオの広さを実感させてくれます。

製造上のムラ、傷はあります。
実用上問題無いレベルに平面は出ています。

安価に出品しますので、ノークレーム、ノーリターンです。

新規および評価10以下、悪い評価の多い方は固くお断りします。
なお、10は10以下に含まれます。以下と未満の区別がつかない方がいらっしゃいますのでお気を付けください。
日本語の読み書きのできない方のyahooオークション利用は規約で禁止されております。

参考


出品物の説明文章の著作権は私に帰属します。東京都ejaq◎217ゆうきさん、無断転載やめてください。


(2025年 8月 22日 18時 44分 追加)

(iBasso DC-Elite、LUXURY&PRECISION W4等に)



(2025年 8月 22日 18時 45分 追加)

(WADIA、Esoteric等に)

Please log in before asking questions
Question list
All replies from original sellers (total number of questions: items)
After the seller responds, the original page will display the question
Product Price JPY
Japanese Sales Tax(10%) JPY

A 10% Sales Tax is applied to goods and services in Japan. The price may include the tax or it may be added separately. Please check the price details when ordering.

Note: This is a domestic sales tax applied within Japan.

Japan Local Shipping Fee JPY Japan Local Shipping Fee Reference
Product Weight KG The maximum weight limit is 30 kg
International Shipping Methods
Proxy bidding and purchasing services are becoming increasingly convenient. However, overseas shopping carries certain risks and issues. To reduce these risks and enhance shopping safety, please be sure to read the following information:

1. International Shipping

   Air Freight: If the item status is not confirmed within two days after the arrival notice, any customer complaints cannot be addressed with the seller.

2. After Receiving the Product

Please confirm and inspect the product as soon as possible to ensure that the product specifications, quantity, accessories, and description are correct

If, unfortunately, there are any issues, you can refer to the following examples on how to report related product problems:
1. Example of missing product information
2. Example of product not matching provided information
3. Example of damaged product information

Important Notes: 1. If the seller is unwilling to ship overseas or is unaware that the product will be shipped overseas, the international shipping cost for returns or exchanges will need to be borne by the member. You may refer to the EMS e-Express fee inquiry from the post office. If it involves alcoholic beverages or items that affect flight safety, the post office cannot be used for shipment, and only DHL can be used to ship back to Japan.
2. During the product complaint handling period, please retain the complete outer packaging of the product (including the shipping label information), and refrain from attempting any repairs or altering the original condition. Any modifications may result in the inability to process the case.

3. After Inspecting the Product

After receiving and inspecting the item, if you have any questions, it is recommended to contact Letao within 2 hours. Here are some reminders:

1. Please do not unpack, use or repair the received item yourself, and be sure to keep the original packaging to facilitate subsequent handling of related matters, so as to avoid changes to the item that may cause the seller to be unwilling to process.

2. You can call customer service, and the customer service will leave a message for you as below. Please provide the following information:
"Hello, we will first help you establish a complaint case for Product ID: _______ .But we need you to 2-3 clear photos of the product issue, including photos of the product problem, product packaging, shipping details slip, and outer box. Send them to service@letao.my and inform us of your desired resolution (failing to provide this may result in an inability to process subsequent matters). After sending the email, notify us in the customer service message. We will confirm with the seller as soon as possible. and if there are any related questions, we will contact you through the customer service message. Thank you for your cooperation."

Please provide:
1. "Product ID"
2. Photo of the "Delivery Note" (if any)
3. Photos of the outer box (including inner and outer packaging)
4. Photos of the product (Please include relevant descriptions to help us confirm with the seller)

Important Notes:
1. Do not include foreign text or other products in the background of the image.
2. Please keep the complete product packaging (including the shipping label information), and refrain from repairing or altering the original condition on your own, as any changes may result in the case being unable to be processed.
3. Please provide the relevant information within 48 hours to avoid missing the golden hour for reflection and causing situations that cannot be handled.
4. Due to 99% of Japanese sellers being unwilling or unaware of shipping goods overseas, if a seller is willing to handle the issue, the goods must be sent back to Japan, and the international shipping costs incurred must be borne by the member. Letao will use postal EMS international express to send the goods back to Japan.
5. As the goods are purchased from overseas, it may take approximately one to two weeks to complete the relevant processing procedures when issues arise with the goods. Please be reminded that you can inquire about the approximate cost through the EMS service at the post office.

4. FAQ

1. Issue of Authenticity: If antique or branded goods are found to be counterfeit upon receipt, clear photos showing the differences between the genuine product and the imitation must be provided as evidence. If unable to provide relevant proof, assistance can be sought to find a third-party reputable organization for a premium authentication service .
2. Leaking Iron Teapot: If an antique iron teapot is leaking, please take clear photos of the leaking area and provide them.
3. Transport Damage: If the goods are damaged during international shipping (to the pickup point), you need to provide photos of the outer packaging of the parcel and clear photos of the damaged goods' outer packaging.

※ Note: Photos provided to sellers should not contain any foreign-related information.
You may also like
    More from This Seller
    Excite Translate
    Add to watchlist and notes
    Product name: レアメタル!純度99.9%タングステンインシュレーター 厚み4倍 Type III 4個セット(CHORD DAC64 QBD76 DAVE,WADIA、Esoteric等に)
    Notes:
    Customer service hours:
    • Monday to Friday 10:00-18:00
    Customer service hotline:
    Customer Service Email: service@letao.my