{"type":"product","schema_version":"1.0","item_id":"101653002353","canonical_url":"https://tw.bid.yahoo.com/item/101653002353","title":"DYNACO Mark-III 真空管擴大機","subtitle":"電壓:117V . 電源線跟頭升級過","condition":"近全新","currency":"TWD","observed_at":"2026-07-25T20:37:04.500Z","current_price":40000,"original_price":null,"stock_status":"low_stock","available_quantity":1,"sold_quantity":0,"seller":{"id":"Y5139053508","name":"[古典音響殿]二手音響收藏交流","positive_rate":null,"rating_count":null},"images":[{"url":"https://img.yec.tw/ob/image/0f1f0353-bd4a-4f39-aed1-c511ec41fb77.jpg","role":"main","alt":"商品主圖","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/514ce5ff-d64a-4a9e-9376-7cc8dc895f6a.jpg","role":"detail","alt":"商品圖片 2","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/d2725c4c-2a53-4622-b5c1-59f59ec6328b.jpg","role":"detail","alt":"商品圖片 3","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/d1f7ffb9-15e7-44c2-baf3-fdc4ae15a6e6.jpg","role":"detail","alt":"商品圖片 4","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/cec80eb7-8bd4-4403-86e9-5d93e023007e.jpg","role":"detail","alt":"商品圖片 5","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/0be4b8b1-717a-4ea4-97e3-5cff49ffee46.jpg","role":"detail","alt":"商品圖片 6","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/9185be1c-afa6-46dd-b073-40927e34262a.jpg","role":"detail","alt":"商品圖片 7","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/58566943-84e3-4d37-b6c9-43e59cdaea03.jpg","role":"detail","alt":"商品圖片 8","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/fbccdaa1-ab8c-4c38-8e1b-fa4c668d22e4.jpg","role":"detail","alt":"商品圖片 9","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/95fcf840-8185-4a36-b09a-cf3510e90470.jpg","role":"detail","alt":"商品圖片 10","width":null,"height":null}],"description":"本賣場商品都是辛苦從日本找來收藏的 \n \n\n當然美品價格不會太低但也是較有收藏的價值\n \n\n 請買家注意  務必在得標後五日內結帳  然後七日內付款\n \n\n二手商品  對外觀要求十分完美的  請不要下標\n\n- DYNACO Mark-III\n-  \n\n \n\n模型電子管單聲道功率放大器輸出60W（額定）140W（峰值）總諧波失真0.5%以下（60W、20Hz～20kHz）互調失真1%以下（額定輸出時）0.5%以下（50W輸出時）0.05%以下（1W輸出時）頻率特性6Hz - 60kHz ±0.5dB16Hz - 25kHz ±0.5dB（最大輸出時）輸入靈敏度1.6V(60W)信噪比90dB以上（額定輸出時）輸出阻抗4Ω、8Ω、16Ω阻尼因子15使用真空管6550 (KT-88): 2 件6AN8: 1 件GZ-34 (5AR4): 1 件能量消耗150W外形尺寸寬229x高190x深229mm重量13.5kg（1973年目錄所列）12.5kg（1974年目錄所列）11.5kg（1976年目錄所列）","shipping_methods":[{"name":"宅配/貨運","fee":0,"currency":"TWD"},{"name":"面交/自取/不寄送","fee":0,"currency":"TWD"}],"lowest_shipping_fee":null,"payment_methods":["ATM轉帳","信用卡一次付清"],"category_id":"2092107940","category_name":"真空管擴大機","breadcrumb":[{"id":"2092101502","name":"家電與影音視聽","url":"/tw/%E5%AE%B6%E9%9B%BB%E8%88%87%E5%BD%B1%E9%9F%B3%E8%A6%96%E8%81%BD-2092101502-category.html"},{"id":"2092105885","name":"影音/視聽/MP3","url":"/tw/%E5%BD%B1%E9%9F%B3-%E8%A6%96%E8%81%BD-MP3-2092105885-category.html"},{"id":"2092075249","name":"擴大機","url":"/tw/%E6%93%B4%E5%A4%A7%E6%A9%9F-2092075249-category.html"},{"id":"2092107940","name":"真空管擴大機","url":"/tw/%E7%9C%9F%E7%A9%BA%E7%AE%A1%E6%93%B4%E5%A4%A7%E6%A9%9F-2092107940-category.html"}],"view_count":2,"watch_count":6}