{"type":"product","schema_version":"1.0","item_id":"101465793416","canonical_url":"https://tw.bid.yahoo.com/item/101465793416","title":"日本製 Marantz PM-54DS 雙聲道美聲綜合擴大機","subtitle":null,"condition":"近全新","currency":"TWD","observed_at":"2026-07-28T03:40:42.417Z","current_price":9000,"original_price":null,"stock_status":"low_stock","available_quantity":1,"sold_quantity":0,"seller":{"id":"Y7771082628","name":"皇家英倫音響配置中心","positive_rate":null,"rating_count":null},"images":[{"url":"https://img.yec.tw/ob/image/238c3b1a-53af-404d-abec-0c168f5b4d03.jpg","role":"main","alt":"商品主圖","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/cdad2733-f836-44ef-950e-d2732b0cc6dd.jpg","role":"detail","alt":"商品圖片 2","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/2064e294-d763-4ae0-8db0-c5804eda9675.jpg","role":"detail","alt":"商品圖片 3","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/5499b9d0-c50b-43c9-8377-f3f58a69bd32.jpg","role":"detail","alt":"商品圖片 4","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/0526cb29-40bc-4440-9751-aa3f962d268d.jpg","role":"detail","alt":"商品圖片 5","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/e2733eb6-6c96-46e6-857e-c0c4271c2306.jpg","role":"detail","alt":"商品圖片 6","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/cdac1093-bfff-45f1-a5fb-1382c9ecdddf.jpg","role":"detail","alt":"商品圖片 7","width":null,"height":null}],"description":"日本製 Marantz PM-54DS\n\n這款前置主放大器專用於純音樂播放。\n\n電源採用大電流驅動能力優異的三重擴散管，實現大功率、高飽和度。\n\n為了利用CD的固有特性，在輸入CD的高電平輸入級採用使用低噪聲FET的直接耦合配置，提高了S/N比。\n此外，還安裝了 CD 直接開關，以實現更高信噪比的高速信號傳輸。\nCD-1的輸入信號在選擇器和平衡中跳躍，從音量直接連接到平坦放大器，並以最短路徑再現。\n\n可以使用選擇器在 MM 位置和 MC 位置之間切換唱機輸入。\n\n配備複製開關，可一鍵複製磁帶 1 → 2。\n\n配備揚聲器選擇器，可獨立打開/關閉揚聲器輸出 1/2。\n\nOFC（無氧銅）線用於主接線，鍍金端子用於 CD-1/2 和唱機輸入。\n此外，所使用的零件都是通過嚴格的聽證來選擇的，例如所有螺絲都使用鍍銅螺絲。\n\n額定輸出 (20 Hz ~ 20 kHz)110W + 110W (4 Ω)\n90W + 90W (6 Ω)動態功率150W + 150W (4 Ω)\n110W + 110W (6 Ω)總諧波失真因數0.015%頻率特性18赫茲至70赫茲信噪比CD:96dB\n唱機 MM:85dB\n唱機 MC:75dB電源100伏，50/60赫茲能量消耗150W外形尺寸寬 416x 高 136x 深 366 毫米重量9.5公斤\n\n圖5、6、7為參考升級改良方式的示意圖，並非已改好，如需升級成圖中銅鍍金座8顆，連工帶料費用加 $3500。\n\n少見機種\n功能正常\n先買先贏","shipping_methods":[{"name":"宅配/貨運","fee":0,"currency":"TWD"}],"lowest_shipping_fee":null,"payment_methods":["ATM轉帳","信用卡一次付清"],"category_id":"2092075252","category_name":"綜合擴大機","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":"2092075252","name":"綜合擴大機","url":"/tw/%E7%B6%9C%E5%90%88%E6%93%B4%E5%A4%A7%E6%A9%9F-2092075252-category.html"}],"view_count":29,"watch_count":14}