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mercari Televisions, Audio, Cameras Audio Equipment Amplifier Tube Amplifier Amplifier Body
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音門ラボ Western Electric 300B 専用のSE 真空管アンプ
Price
185000円
(Tax included)
RM185000
Specifications
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音門ラボ Western Electric 300B 専用のSE 真空管アンプ

(音門ラボ)OTOMON Western Electric 300B 向けのSE 真空管アンプ 10w+10w出力です。



真空管を付属しません。落札者に用意していただきます。



300Bのプレートに流れる電流は60-65mAと設定しております。バイアスは固定バイアスとなり、貴重のWestern Electric 300Bに流れる電流を常に監視し、調整もできるように電流メーターとバイアス調整のボリュームを設けました。



300Bの特徴をすべて洗い出すために出力トランスに特別の大型スーパーコアを採用して、1個の出力トランは7kgもあります。



ノイズのレベルは僅か0.5mVなので、ハンム、ノイズがなく、音楽がないときでもとても静かです。



出品する前にメーカー(音門ラボ)にて点検を行い、動作的に新品の状態に戻りました。全体的にきれいな状態です。メーカーの保証は3か月となります。音門は日本のメーカーです。メーカのHPはhttps://otomon.netです。詳しくはホームページにアクセスして情報をご参照ください。



仕様:



対応周波数: 20Hz~ 45KHz @10w/8Ω

THD: 5% 10w

残留ノイズ : 0.5mV

サイズ:W470xD320xH220mm

ハンム、ノイズがなく、低音から高音まで音の妥協がなく、ボーカルが美しいです。音色がとてもきれいで、素晴らしいアンプです。片チャンネルに10W出力もあるので、感度の88db以上のスピーカーなら問題がなくドライブできます。



調整ボリュームがついていので、プリアンプは必要ないです。



電源ケーブルを付属します。



真空管の構成



初段:12AT7

ドライブ段:6CG7(6DJ8)

出力段:300B

整流管:5U4G、274Bなど。。。



測定の情報を説明します。



対応周波数:一般のアンプであれば20hz〜20kHZまで対応できれば基準ですが、他のメーカーは1wの時に測定するところが、音門ラボに最大の出力が出る際に測定しました。



最大出力: これは音楽が鑑賞できることを前提して出力を図る。通常は歪率が5%を超えない時、これは物理的な最大の出力ではありません。



残留ノイズ:標準的に真空管アンプは残留ノイズが1mVの程度であれば支障がなく音楽が鑑賞できます。そのレベルより低いほど良いです。
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