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■完動品　YAMAHA　 A級Ｂ級　プリメインアンプ　CA-1000　中点電圧　アイドリング電流調整　他クリーニング　レコード試聴　正常

Current

¥ 26,000

Time Left

Auction ID

k1167951478

Number of Bids

27

Seller

dyn********

Rating

2043

16

Auction has ended

Sale

9.12-9.16, Mercari Up to 5% OFF! 9.12-9.16, JDirectItems Fleamarket Up to 6% OFF！ 9.12-9.16, Music Video Sites 3% + ¥500 OFF! 9.09-9.12,Japanese Stationery Section Limited 3% OFF！ 9.08-9.14, Mercari Shops Limited 4% + ¥600 OFF！

Item Information

Item Status
Damages/stains
Japan Domestic Shipping
Based on actual arrival at the warehouse
Int'l Shipping Fee
Apply after arriving at the Doorzo warehouse
Auto-Extension
No
Early Finish
Yes
Starting Price
8,000 JPY
Bid Increment
500 JPY
Ship From
北海道

Item Name

■完動品　YAMAHA　 A級Ｂ級　プリメインアンプ　CA-1000　中点電圧　アイドリング電流調整　他クリーニング　レコード試聴　正常

Item Description

YAMAHA　 CA-1000　プリメインアンプ
完動品　 A級Ｂ級　プリメインアンプ
フロントパネル　ツマミ　クリーニング
レコードをかけて試聴　異常なし
パワー回路　電源回路　異常なし
各スイッチの点検、ボリュームの点検
中点電圧　アイドリング電流　再調整
イコライザー回路、トーン回路　異常なし
Tuner、AUX1、2、Tape AとB(ＰＢ)異常なし
各ＲＣＡ入力端子正常　スピーカー端子正常

完動品 YAMAHA A級Ｂ級プリメインアンプ CA-1000

□商品詳細

■完動品 YAMAHA A級Ｂ級動作プリメインアンプ CA-1000

■主観的ですが、A級Ｂ級動作によるヤマハのすっきりとした音域幅の広さを感じる音はとても聞きやすく、聞き疲れのしないヤマハ独自のアンプです。

■アンプにとって非常に重要な中点電圧と、音に影響するアイドリング電流はきちんと調整してあります。(パワー回路が壊れていると規定値に調整できません。)

■パワーランプも正常

■外観など経年による痛みがありますが、機能は正常です。

■点検作業内容と調整内容 ----------------------------------------------------

■イコライザー回路、トーン回路パワー回路電源回路すべて異常なし

■ＲＣＡ入力端子Tuner、そしてＣＤをAUX1、2、Tape AとB(PB) に繋いで音出し点検正常

■ＲＣＡ端子ＭＭ(５０ＫΩ)にてレコードを試聴異常なし

■各スイッチの接触、ボリュームガリなし

■パワー回路が正常かどうかを表す中点電圧と、アンプを鳴らした時に音にかかわるアイドリング電流(A級・Ｂ級)電圧を再調整

■アンプの内部、フロントパネル、ツマミをクリーニング

■A級動作の特性として、トランジスタが常に稼働しているため、信号を非常に正確に増幅できる点にあります。そのため、非常にクリアーで歪みの少ない音質を実現しています。

■また、トーンコントロール回路にて周波数を切り替えて好みの音作りができます。また、ＴＯＮＥＯＦＦにて小音量時からラウドネスボリュームにより音に深みを与えることが出来ます。

■規格スペック (オーディオの足跡より) -------------------------------------------
詳しくはこちらをご覧ください。 https://audio-heritage.jp/YAMAHA/amp/ca-1000.html

■電源回路
・アンプの心臓部と言われる電源部には、レギュレーションに優れた大型コアのパワートランスと、更に大容量の１８０００μFコンデンサーを２本採用し、サージ電流250Aの大容量整流用ダイオードを搭載しています。

・また、パワー段を除く全段を駆動する別設定の定電圧電源を採用し、アンプ全体の安定性を向上させています。

■イコライザー回路
・イコライザー素子には、金属被膜抵抗(誤差±1%)とスチロールコンデンサー(誤差±1%、±2%)を組合わせ、さらに漏れ電流や経年変化の少ないタンタルコンデンサーを採用しています。

■トーンコントロール回路
・等ラウドネスカーブに準ずるコンティニュアスラウドネス
・ラウドネス回路には、ラウドネス専用のボリュームを設けて実際に聴く人の耳を基準にした調整ができるようにした連続可変タイプのコンティニュアスラウドネスコントロールを採用しています。

■トーンコントロール回路
・Bass：±15dB(50Hz)、
・ターンオーバー周波数：250Hz、500Hz

・Treble:±10dB(10kHz)
・ターンオーバー周波数:2.5kHz、5kHz

■<メインアンプ部>-------------------------------------------------------------

■実効出力
■両ch動作時
・20Hz～20kHz：15W+15W(8Ω、A級動作時)
・85W+85W(4Ω、B級動作時)
・70W+70W(8Ω、B級動作時)

■1kHz：15W+15W(8Ω、A級動作時)
・100W+100W(4Ω、B級動作時)
・75W+75W(8Ω、B級動作時)

■片ch動作時 1kHz：
・15W/15W(8Ω、A級動作時)
・100W/100W(4Ω、B級動作時)
・80W/80W(8Ω、B級動作時)

■各パワーバンド幅 (IHF、両ch駆動)
・A級動作時：5Hz～100kHz
・B級動作時：5Hz～50kHz

■<プリアンプ部>--------------------------------------------------------------

■入力感度/インピーダンス
・Phono1 MC：200μV/100Ω
・Phono1：3mV/50kΩ、100kΩ
・Phono2：3mV/50kΩ
・MIC：2.5mV/50kΩ
・Tuner、AUX1、2、Tape PB A、B:120mV/40kΩ

■トーンコントロール
・Bass：±15dB(50Hz)、ターンオーバー周波数：250Hz、500Hz
・Treble：±10dB(10kHz)、ターンオーバー周波数：2.5kHz、5kHz

■フィルター
・Low：20Hz/70Hz、12dB/oct
・High：6kHz/12kHz、6dB/oct

■ラウドネスコントロール
等ラウドネスカーブに準ずるコンティニュアスラウドネス

■ミューティング：－20dB

■オーディオの足跡によるスペックであり、測定器を使っての測定はしておりません。ご了承の上入札してください。

■外形寸法幅436x高さ144x奥行323mm

■重量 15.5kg

□支払詳細
	■Yahooかんたん決済

□発送詳細
	・ゆうパック・ヤマト運輸・佐川急便飛脚宅配便

□注意事項

１■ お守りください。取引ナビ・お取引の流れ --------------------------------------

・落札が終わりましたら、翌日の夜１０時までに取引ナビを始めてください。また、お支払いは、更にその翌日の夜１０時までに終わらせてください。

・期日までに取引ナビを始めて頂けない場合、また、期日までにお支払いを済ましてくれない場合も、いたずらとして落札者都合にてキャンセル致します。

２■ 落札後の連絡を取り合う時間帯について ---------------------------------------

・連絡を取り合う時間ですが、終了当日だけは夜１０時半まで、翌日以降は夜１０時までとしております。

３ ■ 受け取りと評価について ----------------------------------------------------

・お品を受け取りになりましたら「受取」をして頂き、その後、評価も済ませて下さい。

・発送連絡と同時に評価も入れております。評価不要の方はご落札時にメッセージでお知らせください。お互いに評価を終らせて、それをもってお取引終了となります。

・何度お願いしても「受け取り」をして頂けない方については、「非常に悪い」評価に、「受け取り」をしながら「評価」だけをして頂けない方については、「悪い」評価と致します。

４ ■質問入札、落札のキャンセル、又、保証について -------------------------------

・ご不明な点が有りましたら質問してください。分かる範囲でお答えいたします。

・入札、落札キャンセルを申し出てられても応じません。充分に検討したうえで入札してください。

・すべて保証はありません。又、一切のクレームには応じませんので、少しでも不安と感じる方はご購入をお控えください。

・程度の差こそあれキズ・へこみ・汚れは必ずあると思って入札してください。気になる方は入札をお控えください。

５ ■ ご新規の方評価が悪い方、また、悪質な出品をされた方 ------------------------

・過去、新規の方にいたずらに入札を妨害されたことがあったので、新規の方とはお取引致しません。但し、落札後、誠意を持ってお取引をされる場合はその限りではありません。

・あまりにも悪い評価があると分かった場合にも、お取引を中断致します。

・過去、壊れている物を平然と正常なものとして出品されている方がおられました。評価を見てそう言う方だと分かった場合は取引を中断し、お取引をキャンセル致します。

□コメント

■落札後にトラブルが起きないように、くれぐれも注意事項をよくお読みになった上で入札し、お取引を開始してください。

■落札後、気持ちよくお取引を始められる方だけ入札して下さい。

■落札後に落札代金も支払いもせず、手に取ることもせず、製品に難癖をつけられ、非常に悪いと評価をする異常な方がおられましたが、その様な方とお取引を致しません。入札をお断りいたします。

■出品の品は中古です。完璧なものを求めている方、また、神経質な方、少しでも不安と感じる方はご購入をお控えください。いずれの場合もキャンセルは致しませんので、よく検討したうえで入札してください。

宜しくお願い致します。

+ + + この商品説明はオークションプレートメーカー２で作成しました + + +
No.202.019.004

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