{"type":"product","schema_version":"1.0","item_id":"101739885236","canonical_url":"https://tw.bid.yahoo.com/item/101739885236","title":"波蘭原裝Circle Labs  A200 旗艦綜合擴大機～全新優惠價！","subtitle":null,"condition":"全新品","currency":"TWD","observed_at":"2026-06-08T07:16:27.030Z","current_price":298000,"original_price":null,"stock_status":"low_stock","available_quantity":1,"sold_quantity":0,"seller":{"id":"Y8462386981","name":"旭笙音響","positive_rate":null,"rating_count":null},"images":[{"url":"https://img.yec.tw/ob/image/9e811c5b-f31c-4670-bf5f-dd1c1662fd9d.jpg","role":"main","alt":"商品主圖","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/9ff955e6-a187-42ef-a8e3-a798b5fe5678.jpg","role":"detail","alt":"商品圖片 2","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/93af6789-59c6-4e24-95bd-0b5820a9da31.jpg","role":"detail","alt":"商品圖片 3","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/abe100f5-7091-4920-b5b0-c89bda1bf5d6.jpg","role":"detail","alt":"商品圖片 4","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/1102e372-27fd-44fb-a20a-6152cde5d5a7.jpg","role":"detail","alt":"商品圖片 5","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/27def826-9ee5-41ce-839b-d2a02e2844ef.jpg","role":"detail","alt":"商品圖片 6","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/f2543deb-0883-43e4-be9c-5f795dc2c8ce.jpg","role":"detail","alt":"商品圖片 7","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/7195590a-be84-4b99-bb88-8f1eaf148aa0.jpg","role":"detail","alt":"商品圖片 8","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/81470ce9-2f17-431c-9740-8d8d51870789.jpg","role":"detail","alt":"商品圖片 9","width":null,"height":null}],"description":"🇵🇱波蘭 Circle Labs  A200 旗艦綜合擴大機\n\nA200 是一款輸出功率為 120W / 8 歐姆和 200W / 4 歐姆的綜合擴大機，配備一組平衡 XLR 輸入、四組 RCA 線路輸入和一組前級輸出。\n\nA200 採用「音量控制 - 單端真空管前級 - 功率放大器」的拓撲結構，並運用了 Circle Power 技術。音量控制採用知名 Khozmo 公司的電阻階梯陣列電路。這些電阻的容差僅為 0.1%，並由高階繼電器進行切換，確保了傳統電位器無法企及的極高精度和耐用性。此控制電路配備全鋁遙控器。\n\nA200 的前級電路設計極度精簡，每個聲道僅使用一支 ECC88 真空管。這種設計使得被動元件的數量得以最小化。電路僅使用一個真空管、一個電阻和一個高品質的實心銅泊電容，從而實現了中性的聲音和出色的動態控制。此部分為每個聲道分別配備了獨立的真空管，並採用聚丙烯電容進行穩壓供電。 \n\n創新的Circle Power 電流級設計是 Circle Labs 自主研發的獨家技術。其音質常被描述為「融合了真空管和電晶體設計的最佳特性」。\n\nA200 採用非對稱輸入級和電流控制雙極型末級電晶體。此方案兼具非對稱電路的細節表現和精準度，以及對稱電路的效率和動態範圍。末級的低輸出阻抗，從而帶來高阻尼係數，確保了足夠的動態範圍和對市面上大多數揚聲器的良好驅動力。A200 採用雙單聲道技術，配備獨立的環形變壓器和電源，總電容容量高達200,000 µF。\n\n🔎規格：\n輸出功率：120W / 8Ω，200W / 4Ω\n輸入：XLR x 1，RCA x 4\nPower Amp 輸入：RCA x 1\n頻率響應：10Hz-130kHz (- 3dB)\n輸入靈敏度：0.7V（滿功率）\n輸入阻抗：33 kΩ\n尺寸：430 x 376 x 176 mm\n淨重：23 Kg\n售價：$298,000","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":"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":24,"watch_count":0}