{"type":"product","schema_version":"1.0","item_id":"101733760813","canonical_url":"https://tw.bid.yahoo.com/item/101733760813","title":"ACCUPHASE C-2420","subtitle":null,"condition":"近全新","currency":"TWD","observed_at":"2026-05-02T09:38:59.312Z","current_price":158000,"original_price":"168000.00","stock_status":"low_stock","available_quantity":1,"sold_quantity":0,"seller":{"id":"Y5364528692","name":"九盛音響","positive_rate":null,"rating_count":null},"images":[{"url":"https://img.yec.tw/ob/image/c71fdbb2-2bf9-476f-832f-11e62d668a74.jpg","role":"main","alt":"商品主圖","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/a5a0c130-9350-432d-b401-b5ab24362629.jpg","role":"detail","alt":"商品圖片 2","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/e1a1ed57-a116-4750-a7f6-b079ae13f473.jpg","role":"detail","alt":"商品圖片 3","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/f30e7bfd-fe99-4fab-a605-45877b95a132.jpg","role":"detail","alt":"商品圖片 4","width":null,"height":null}],"description":"Accuphase C-2420 是一款精密立體聲前級控制中心（Precision Stereo Control Center）。\n它承襲了旗艦機種 C-3800 與 C-2820 的核心技術，並以全平衡 AAVA（Accuphase Analog Vari-gain Amplifier）音量控制系統為其最大特色。\n\n核心技術與特色\n- 平衡式 AAVA 音量控制：採用純類比方式處理訊號，避免了傳統電阻式音量控制帶來的訊噪比惡化與阻抗變化問題，即使在低音量下也能保持豐富的細節。\n- 雙單聲道結構：內部採取完全獨立的左右聲道設計，包含各自專用的電源變壓器與濾波電容，從物理與電氣層面徹底隔絕左右聲道干擾。\n- 模組化設計：輸入、AAVA 及其他放大階段均採用獨立模組，並使用邏輯控制繼電器以確保最短的訊號傳輸路徑。\n- 可擴充性：後面板預留插槽，可加裝 AD-2820 唱頭放大模組（支援 MM/MC）或 DAC 數位模擬轉換模組。","shipping_methods":[{"name":"面交/自取/不寄送","fee":0,"currency":"TWD"}],"lowest_shipping_fee":null,"payment_methods":["ATM轉帳"],"category_id":"2092075250","category_name":"前級擴大機","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":"2092075250","name":"前級擴大機","url":"/tw/%E5%89%8D%E7%B4%9A%E6%93%B4%E5%A4%A7%E6%A9%9F-2092075250-category.html"}],"view_count":12,"watch_count":0}