{"type":"product","schema_version":"1.0","item_id":"101687437088","canonical_url":"https://tw.bid.yahoo.com/item/101687437088","title":"【杰士音響】美國Jeff Rowland Concentra綜合擴大機，公認經典名作，100瓦X2，配件齊全極新完美品（Standby mode）","subtitle":null,"condition":"近全新","currency":"TWD","observed_at":"2026-04-29T12:10:32.746Z","current_price":95000,"original_price":null,"stock_status":"low_stock","available_quantity":1,"sold_quantity":0,"seller":{"id":"Y8904058391","name":"【杰士音響】技術本位、專業熱心","positive_rate":null,"rating_count":null},"images":[{"url":"https://img.yec.tw/ob/image/f3143158-fd5e-4d6d-ac9c-206f052390be.jpg","role":"main","alt":"商品主圖","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/c19bc704-cdf1-4407-9569-03439a014325.jpg","role":"detail","alt":"商品圖片 2","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/245e7551-0713-42f9-b48a-885a00540bd5.jpg","role":"detail","alt":"商品圖片 3","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/ebef50f0-1318-4707-87ec-aed26761991e.jpg","role":"detail","alt":"商品圖片 4","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/031a7e8e-6f12-46ab-b3ab-8c2a72d9296a.jpg","role":"detail","alt":"商品圖片 5","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/4ad6f0eb-6678-4436-a912-e935a927456a.jpg","role":"detail","alt":"商品圖片 6","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/250adf6c-fab4-4d8a-9a5a-2eacac95f492.jpg","role":"detail","alt":"商品圖片 7","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/c1cf5bb2-30d3-4f58-8763-7ec4280210a5.jpg","role":"detail","alt":"商品圖片 8","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/45a5eeb6-99e5-4ea2-bc80-ba41da07200c.jpg","role":"detail","alt":"商品圖片 9","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/ac44b74a-00e2-4fcf-bf29-0e609544d3e1.jpg","role":"detail","alt":"商品圖片 10","width":null,"height":null}],"description":"這台是最後期版本，具Standby mode，可待機節能，隨時可以上陣。\n\nConcentra Specifications\n\nOutput Power Continuous RMS Watts\n@ 8 ohms 100 watts\n@ 4 ohms150 watts\n\nBandwidth\n0.5 Hz to 160 kHz, -3 dB\nSlew Rate\n30 volts per microsecond\n\nTHD and Noise\nLess than 0.06% at rated power\n\nDamping Factor\n60, 20 Hz to 20 kHz, 8 ohms\n\nOutput Current\n16 amps continuous, 28 amps peak\n\nGain Structure\nPreamplifier Section 14 dB\nAmplifier Section26 dB\n\nVolume Control Range\n99.5 dB\n\nVolume Control Resolution\n0.5 dB ±0.05 dB over entire range\n\nInput Impedance\n36k ohm\n\nCommon Mode Rejection Ratio\nGreater than 60 dB, 20 Hz to 20 kHz\n\nPower Consumption\n100 watts idle; 550 watts maximum\n\nInputs\nBalanced Line3 per channel (XLR)\nUnbalanced Line3 per channel (RCA)\nRecord1 per channel (RCA)\nUnbalanced Phono (optional)1 per channel (RCA)\n\nOutputs\nBalanced Pre Out1 per channel (XLR)\nUnbalanced Pre Out1 per channel (RCA)\nRecord1 per channel (RCA)\nSpeaker1 pair binding posts per channel\n\nDimensions\n17.5 in (W) x 14.35 in (D) x 5.75 in (H) 44.5 cm (W) x 36.2 cm (D) x 14.6 cm (H)\n\nWeight\n50 lbs (23 kg)","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":"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":74,"watch_count":7}