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デジタルケ-ブルの頂点 BELDEN・7731A 0.5m  
     

  • Product Quantity
    : 1
  • Starting Bid
    :5,000円
  • Highest Bidder
    : / Rating:
  • Listing Date
    :2025年10月24日 18時58分
  • Bidding closes on
    :2025年10月31日 18時58分
  • Auction Number
    :d1162084610
  • Condition
    :New product
  • Automatic Extension
    :No
  • Authentication
    :No
  • Early Closing
    :Yes
  • Can I return the product?
    :no
  • Description
  • Q&A ()
  • Cost Estimator
  • Problem Item Response Procedur
デジタルケーブルの頂点! ベルデン7731A

ベルデン製デジタルケーブル7731A。
以下にテクニカルデータの一部を記します。

    導体:       AWG14 ソリッドベアカッパー
    シールド:     アルミフォイル+スズメッキ銅線編組
    絶縁:       ガス封入発泡HDポリエチレン
    伝送速度:    光速の85%
    線間容量:    52.4PF/M
    伝送減衰:    1MHZ-0.5dB/100M ~ 3GHZ-26.9dB/100M
    インピーダンス: 75オーム

例えば、インピーダンス75オームというのも、大半の製品は詳細データにあたるとプラスマイナス3オームの規格ですが、7731A はずばり75オームで、この太さでこそ実現できる性能です。

高周波特殊用途に特化した銅覆鋼線を別にすると、オーディオ用として適性を持つ純銅素材のデジタルケーブルとしては、これがベルデン社の技術の頂点だといえます。

伝送速度や減衰率にいたってはまったくの過剰性能ですが、極めて微細な要素が反映するのが音質であり基本性能は高いにこしたことはありません。
難点は太くて硬いため、取り回しと寸法決めに注意を要することですが、その点を差し引いても充分に期待に応えてくれるケーブルです。

勿論システムとのマッチングもあることですし、「これでなければ」とは言いませんが、14ゲージのソリッド導体が生み出す緻密、濃密で力強い「音」の世界を楽しんで頂けるはずです(音質の評価についてはお使いになった方の感想が評価欄に寄せられていますので、そちらも御参考ください)。

製作方法については、無ハンダ圧着式は採用していません。
理由は二つあります。
第一に、あまりにも強靱なケーブルであるため、確実に導体を確保する必要があること。
第二にこの性能ならばハンダによるミクロン単位のインピーダンス偏差(ここでは距離が問題です)よりも酸化皮膜の形成による偏差のほうが大きいと判断したためです。
考え方は色々あるでしょうが、永年に亘って安定かつ確実な伝送能力の維持を最優先課題としています。

製品両端のプラグが赤と黒に分けられているのは、ケーブルの方向性を気にされる方向けのものです。
2芯シールドではないので本来は必要無いものと思いますが、製造段階での素材の向きを言われる方も多いため、便宜上「赤」を文字列先頭側として色分けしています。


価格 は50センチ1本の価格です。延長は25センチ500円ですが、その際は事前に質問欄よりご連絡ください。

発送 はヤフネコ宅急便です。実費送料を御負担ください。

なお土、日、祝日の発送はできませんのでご了承下さい。


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Product Price JPY
Japanese Consumption Tax(10%) JPY

A 10% consumption 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 Get Your Limited-Time International Shipping Discount Now!
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.
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    Product name: デジタルケ-ブルの頂点 BELDEN・7731A 0.5m
    Notes:
    Customer service hours:
    • Monday to Friday 10:00-18:00
    Customer service hotline:
    Customer Service Email: service@letao.my