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【再生品】稀少品Foster BF-163S 前期アルニコ版
        

  • Product Quantity
    : 1
  • Starting Bid
    :8,400円
  • Highest Bidder
    : thu******** / Rating:512
  • Listing Date
    :2026年04月12日 15時17分
  • Bidding closes on
    :2026年04月19日 19時07分
  • Auction Number
    :1226264188
  • Condition
    :State it in the description
  • Automatic Extension
    :No
  • Authentication
    :No
  • Early Closing
    :Yes
  • Can I return the product?
    :no
  • Description
  • Q&A ()
  • Cost Estimator
  • Problem Item Response Procedur
Notes
  1. The product may have been repaired, please ask clearly and pay attention before placing a bid.
【再生品】稀少品Foster BF-163S 前期アルニコ版


◆概要
 Foster BF-163S 1960年代に作られた前期アルニコ版を再生しました。  Foster伝統の出来の良い函に6.5inch(16cm)無着色ダブルコーンのフルレンジユニット一発です。 オリジナルでは密閉式でしたが今回はリアにバスレフをつけました。 古いユニットですが視聴した範囲ではよい音が出ています。

◆再生の内容
1.本体外面:
 外面はおおむね綺麗でしたが、突板の木目が異なりロット違いだと思われます。 有機溶剤拭き上げ処理ののち、やすり#600までで整え、ブラウン1回、つやだし3回で仕上げました。 オリジナルの深みある木目がよみがえりました。
2.バッフル:
 厚さ15mmの合板製バッフルは堅牢で、ユニットを取り付けるナットが一部固着していました。(腐食ではなく樹脂ボンドの効きすぎ) 今となっては貴重なユニットなので、無理をしてユニットを外すことは断念しました。 バッフル付きのネットは破損があったので撤去しました。表面はやすり#600までで整え、ブラック2回で保護しました。
 前期アルニコ版であることを示す横長デザインのFosterエンブレムをオリジナルの位置に取付ました。 エンブレムが隠れないように部分貼りタイプの脱着可能なサランネットをグレー色で自作しました。 古いものですがユニットがここまで保存できた理由は脱着できないネットの効果で、防塵の目的でもネットは必要と判断しました。
3.背面:
 オリジナルの背面板は、バッフルと同じ15mm厚の合板で、ターミナルは前期モデルの標準仕様の金属製のケース埋め込み式の丁寧なものです。 ポストだけバナナプラグ対応の物に交換しました。 今回、上部にバスレフを追加設置しました。φ5cm×L=3cmで、共振周波数はFd=92.1Hzとしました。 表面をやすり#600までで整え、ブラック3回、つやだし2回で仕上げました。
4.内部:
 今回、ケーブルは全面的に交換しました。 途中にファストン端子オスメスをはさみ、脱着性を付加しました。
オリジナルでは密閉式ですが、中途半端な量の吸音綿が内壁に貼られていました。 劣化が目立ったのですべて撤去し、代わりに流用品ですが質の良いニードルフェルトを貼りました。
5.ユニット:
・内容は外部サイトでご参照ください。↓
https://audio-heritage.jp/FOSTEX/speaker/bf-163s.html
※前期版なので大型のアルニコ磁石を背負った16F3です。(今となっては貴重品です)
※能率は98dBとありますが(/W50cm)の値と思われます。よって92dB/Wm相当になり、後期版と同水準です。
※コーン面に補修跡があります。(片方)
 
6.サイズ:
 外部サイトをご参照ください。(ポストを交換したので突起の分だけ奥行きが拡大しています)

//////////////////////////
◆音の傾向(個人主観) 分離が良く透明感と立体感のあるアルニコ駆動特有の良音
・低域
 16cm相応の低音で今となってはやや控えめな印象ですが、楽器演奏の様子のわかるリアルさがあります。
・中高域
 帯域ごとに音の分離が明確で透明感は抜群です。高域にはツヤがあり、みずみずしい印象です。

/////////////////////////////////////////////////
最後に:
 ロット違い:突板の木目違いのほかに、バッフルの固定方法(ねじ止め/接着)、背面板のねじ配置と色(シルバー/ブラック)、 ユニットの刻印デザイン、といった細部の違いがあります。なお、肝心のユニットは同じもので、音に差は感じられません。  無保証、NC&NRのルールでお願いします。

※梱包サイズは幾分余裕を見込んでいます。実際のサイズが異なる場合もありますがご了承ください。
※当方、時代遅れのため海外発送はご容赦願います。
※他にも出品しています。よろしければそちらもご覧ください。





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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.

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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.
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    Product name: 【再生品】稀少品Foster BF-163S 前期アルニコ版
    Notes:
    Customer service hours:
    • Monday to Friday 10:00-18:00
    Customer service hotline:
    Customer Service Email: service@letao.my