{"type":"product","schema_version":"1.0","item_id":"100761613230","canonical_url":"https://tw.bid.yahoo.com/item/100761613230","title":"TAD Exclusive ET-703 超級稀有效率鈹原裝振膜超高音錯過不再","subtitle":null,"condition":"近全新","currency":"TWD","observed_at":"2026-05-26T13:43:36.289Z","current_price":1234567,"original_price":null,"stock_status":"low_stock","available_quantity":1,"sold_quantity":0,"seller":{"id":"Y4540971780","name":"VAS","positive_rate":null,"rating_count":null},"images":[{"url":"https://img.yec.tw/ob/image/562c8171-57b4-436c-b3d6-5b7024f0e45a.jpg","role":"main","alt":"商品主圖","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/5dae28e8-7329-43e9-9b65-0c7bc8cc016e.jpg","role":"detail","alt":"商品圖片 2","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/fa441b7c-569e-4252-8af4-438cdcb04fc9.jpg","role":"detail","alt":"商品圖片 3","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/b23ac837-7fee-4791-b3ff-44989ad78820.jpg","role":"detail","alt":"商品圖片 4","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/151ba5d8-d9b2-4470-9874-75cc5d45adf1.jpg","role":"detail","alt":"商品圖片 5","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/357e334c-c0d6-4cb3-8595-9ab38b2bcb32.jpg","role":"detail","alt":"商品圖片 6","width":null,"height":null}],"description":"TAD Exclusive ET-703 超級稀有效率鈹原裝振膜超高音錯過不再\n\n輸入阻抗8Ω播放頻段5kHz至45kHz最大輸入30W（5kHz，12dB / oct）輸出聲壓級107dB /瓦/米最大輸出聲壓級122dB /瓦/米分頻頻率5kHz以上（截止特性12dB / oct以上）膜片直徑35mm鈹膜片（55mg）號角衍射角磁鐵稀土鈷均衡器方法三縫後置式音圈直徑φ35毫米擋板開口直徑φ81毫米外形尺寸直徑φ80x深度74mm（本體）機重1.1公斤附上安裝螺釘（內六角螺栓x4，木螺釘x4）\n平墊圈x4\n六角扳手x1\n密封填料\n法蘭\nPT-R9 SPECIFICATIONS\n\nInput Impedance: 8 ohms\n\nFrequency Range: 5,000 - 120,000Hz\n\nInput (when crossover frequency set at 5kHz and attenuation response at 12dB/oct.): 50 watts (rated), 100 watts (maximum)\n\nSound Pressure Level: 97.5 dB/W (1m)\n\nCrossover Frequency: Higher than 5,000Hz (Attenuation response: sharper than 12dB/oct.)\n\nTotal Magnetic Flux: 180,000 maxwells\n\nMagnetic Flux Density: 7,400 gauss\n\nMagnet: Alnico 750\n\nWeight: 5 lbs. 12 oz./2.6kg\n\nOuter Dimensions (width x height x depth): 5-1/4 x 3-1/2 x 7 inches/134 x 89 x 179 mm\n\nFull-Surface-Drive Wide-range Ribbon Tweeter with a Super-Light Beryllium Vibration Board Consists of a super-light Beryllium board in a \"hexagonal shape with a concurrent point in the middle\", measuring 16 (micrometers) in thickness and weighing 9 mg.\n\nFull-surface drive made possible by the use of advanced Alnico 750 magnet and its high-precision magnetic field achieving 180,000\n\nMaxwells with an Air gap magnetic flux density of 7,400 Gauss.\n\nWide Range and low level losses made possible by permanent alloyed core of the matching Transformer, with metal-treated wires on the primary side and the secondary side.\n\nIncludes a short horn design, embodying all the advantages of a direct radiator which is subject to a low level of noise interference from its surroundings.\n\nDesigned for high-level input level with a rated input level of 50 watts and a maximum input of 100 watts.\n\nCrossover. We recommend that the crossover frequency for the PT-R9 be 5 kHz or higher with a cutoff response -12dB/oct or higher","shipping_methods":[{"name":"宅配/貨運","fee":0,"currency":"TWD"}],"lowest_shipping_fee":null,"payment_methods":["ATM轉帳"],"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":24,"watch_count":6,"hashtags":["tad","tannoy","altec","jbl"]}