{"type":"product","schema_version":"1.0","item_id":"101484682662","canonical_url":"https://tw.bid.yahoo.com/item/101484682662","title":"[古典音響殿] HITACHI Lo-D HS-500 大型書架喇叭","subtitle":"天然磁鐵","condition":"近全新","currency":"TWD","observed_at":"2026-06-18T03:48:27.651Z","current_price":25000,"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/c0e6c902-3102-4dc3-acd2-c33cb51f0f6e.jpg","role":"main","alt":"商品主圖","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/d3a1c6e7-f275-48b5-abb2-0cf6e367db15.jpg","role":"detail","alt":"商品圖片 2","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/bf25d59a-8124-4e32-879d-a9e024d8b9bc.jpg","role":"detail","alt":"商品圖片 3","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/c8a13d98-28dd-4d48-9069-0ca40228d370.jpg","role":"detail","alt":"商品圖片 4","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/6494457c-d427-4863-81e8-c1cac094a81e.jpg","role":"detail","alt":"商品圖片 5","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/e5dfa48d-1b69-4d46-9b67-a621685d0842.jpg","role":"detail","alt":"商品圖片 6","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/b35103ab-e9b3-4f7e-b0da-d955fa5fd3a4.jpg","role":"detail","alt":"商品圖片 7","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/afe6caa0-4a9f-4c54-b13c-6351104f777c.jpg","role":"detail","alt":"商品圖片 8","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/3bd9adcc-3ed3-4020-9977-45d1a6f06bdf.jpg","role":"detail","alt":"商品圖片 9","width":null,"height":null}],"description":"本賣場商品都是辛苦從日本找來收藏的 \n \n當然美品價格不會太低但也是較有收藏的價值\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二手商品  對外觀要求十分完美的  請不要下標 \n\n運費 : 1500 (請專車運送.偏遠地區另計)\n\nLo-D HS-500- \n- （1975年左右）\n\n　評論　\n\n作為巡演傑作而聞名的 2 路揚聲器系統。L-200 是一款 20cm 錐形低音揚聲器，採用低通方式。該裝置包含聚集的邊緣和中心星形輪以支撐振動系統。為了支撐振動系統的有效質量，定心星輪在材料上經過了充分的老化和成型，以抑制隨時間的老化。而且採用長行程短音圈，避免了磁通分佈不均勻部分導致失真，只使用均勻部分。這個音圈的直徑為10mm，簡單的±6mm。H-70HD 是號角型高音揚聲器，位於高音區域。該號角由一根鋁製圓棒一根一根精心切割而成，前面有一個聲學透鏡，用於改善指向特性。另外，振膜採用高純度聚酯薄膜製成，保證了輕便性和耐高溫高濕的性能。網絡部分採用12dB/oct LC網絡。此外，還配備了2dB步長的衰減器，可以根據使用條件進行調整。還配備了多功放端子。箱體採用了傾倒式低音反射系統，以兼具封閉式系統和低音反射式系統的優點。在這種方法中，端口和外殼填充有密度是空氣五倍的玻璃棉，以提供適當的聲阻並提高低音再現能力。另外，在阻尼低音反射系統中，聲音從端口和揚聲器兩者輻射，因此揚聲器的振動幅度比封閉式系統小。因此，低音的失真度下降。該材料為硬質 Homogenholz，具有 4 面表面。\n\n- \n\n  - \n - \n - \n - \n\n型號評級方法2 路、2 個揚聲器、倒置低音反射方案和書架式單位等低通用：20cm錐體型(L-200)高通用：喇叭型(H-70H)頻帶40Hz - 20kHz35Hz - 20kHz（-8dB 消聲室）30Hz - 20kHz（-15dB 消聲室）阻抗8Ω最大輸入20W（70Hz或以上連續）輸出聲壓級88分貝/瓦/米交叉頻率3kHz失真（40Hz-20kHz）1.7%以下(1W)2.7%以下(10W)外殼內部容積50升外殼表面處理核桃外形尺寸寬360x高610x深347mm重量22公斤","shipping_methods":[{"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":"2092075255","category_name":"主喇叭","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":"2092075254","name":"喇叭","url":"/tw/%E5%96%87%E5%8F%AD-2092075254-category.html"},{"id":"2092075255","name":"主喇叭","url":"/tw/%E4%B8%BB%E5%96%87%E5%8F%AD-2092075255-category.html"}],"view_count":15,"watch_count":17}