{"type":"product","schema_version":"1.0","item_id":"101504490874","canonical_url":"https://tw.bid.yahoo.com/item/101504490874","title":"PARASOUND HCA-1000 後級擴大機 左右音量可調 可 MONO 聲音優  外表較差聲音一樣好","subtitle":null,"condition":"近全新","currency":"TWD","observed_at":"2026-04-30T10:54:43.338Z","current_price":9900,"original_price":null,"stock_status":"low_stock","available_quantity":1,"sold_quantity":0,"seller":{"id":"Y3433657199","name":"Y3433657199","positive_rate":null,"rating_count":null},"images":[{"url":"https://img.yec.tw/ob/image/c905f714-a095-4810-939e-6dc4b0d33287.jpg","role":"main","alt":"商品主圖","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/dee23068-28fc-473c-89e8-8383b959d872.jpg","role":"detail","alt":"商品圖片 2","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/50c19b1e-d848-4023-ac6f-3e0f04a2b135.jpg","role":"detail","alt":"商品圖片 3","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/1f7de2a2-66d5-4b36-a227-9f50a1d4be7c.jpg","role":"detail","alt":"商品圖片 4","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/500db8fc-e5db-482a-b85a-513d28f72c07.jpg","role":"detail","alt":"商品圖片 5","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/1dddb073-d51a-4d65-a2b0-3c467da292c7.jpg","role":"detail","alt":"商品圖片 6","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/ffeea5d9-26fb-44c4-bc4c-eac747f5048c.jpg","role":"detail","alt":"商品圖片 7","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/45001cf2-2efe-4881-b151-04800a671d0a.jpg","role":"detail","alt":"商品圖片 8","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/2531e22a-dfb9-431b-ab3b-9777d184cab4.jpg","role":"detail","alt":"商品圖片 9","width":null,"height":null}],"description":"SPECIFICATIONS\n\n- Continuous Power Output - Stereo:\n   125 watts RMS x 2, 20 Hz - 20 kHz, 8 Ω, both channels driven;\n   200 watts RMS x 2, 20 Hz - 20 kHz, 4 Ω, both channels driven\n- Continuous Power Output - Mono:\n   400 watts RMS, 20 Hz - 20 kHz, 8 Ω\n- Current Capacity:\n   45 amperes peak per channel\n- Slew Rate:\n    >130 V/�second\n- Power Bandwith:\n    5 Hz - 100 kHz, +0/-3 dB at 1 watt\n- Total Harmonic Distortion:\n    < 0.03% at full power; < 0.01 % typical levels\n- IM Distortion:\n    < 0.03 %\n- TIM:\n   unmeasurable\n- Dynamic Headroom:\n    > 1.5 dB\n- Interchannel Crosstalk:\n    > 80 dB at 1 kHz; > 60 dB at 20 kHz\n- Input Sensitivity:\n   1 V for 28.28 V, THX Reference Level; 1.1 V for full output\n- Input Impedance:  33 k Ω\n- S/N Ratio: > 116 dB, full power; > 96 dB, THX Reference Level\n- Damping Factor:\n    > 800 at 20 Hz\n- Power Consumption:\n   500 watts\n- Dimensions:\n   w 17 1/4\" x h 3 1/2\" x d 13 1/4\", h 4 1/8\" with feet\n- Net Weight:\n    22 lb\n \n是 Home THX Ultra 認證放大器中隨處可見的最佳價值。這款 John Curl 設計的放大器可以展現音樂的所有微妙細節，但仍然具有最大膽的漸強和家庭影院特效爆炸的衝擊力。它還具有自動開啟功能，非常適合家庭影院和定制的多區域安裝。\n\n特徵\n\n- John Curl 設計的電路\n- THX Ultra 認證\n- 直接耦合——信號路徑中沒有電容器或電感器\n- 輸入級使用手工匹配的互補 JFET\n- 12 個 Beta 匹配的 15 安培、50 MHz 雙極輸出晶體管\n- 785VA 環形電源變壓器，每通道具有獨立的次級繞組，40,000 �F 電源濾波電容\n- 每個通道獨立供電\n- 直流伺服及繼電保護電路\n- 高偏置 A/AB 類操作\n- 交流電存在、待機/正常、電流過載指示器\n- Tiffany 風格的 RCA 輸入插孔、環路輸出插孔\n- 12 伏直流自動開啟電路\n- 鍍金 5 路揚聲器接線柱\n- 定制設計的可拆卸 IEC 交流電源線\n- 後置增益控制；地面升降開關 \n- 2機架空間高度前面板\n- 提供機架安裝適配器\n規格\n\n- 連續功率輸出 - 立體聲：\n   125 瓦 RMS x 2，20 Hz - 20 kHz，8 Ω，雙通道驅動；\n   200 瓦 RMS x 2，20 Hz - 20 kHz，4 Ω，雙通道驅動\n- 連續功率輸出 - 單聲道：\n   400 瓦 RMS，20 Hz - 20 kHz，8 Ω\n- 電流容量：\n   每通道 45 安培峰值\n- 轉換率：\n    >130 V/秒\n- 功率帶寬：\n    5 Hz - 100 kHz，1 瓦時為 +0/-3 dB\n- 總諧波失真：\n    全功率時 < 0.03%；< 0.01 % 典型水平\n- 互調失真：\n    < 0.03 %\n- TIM：\n   不可測量\n- 動態餘量：\n    > 1.5 dB\n- 通道間串擾：\n    1 kHz 時 > 80 dB；> 60 dB 在 20 kHz\n- 輸入靈敏度：\n   1 V for 28.28 V, THX Reference Level；1.1 V 全輸出\n- 輸入阻抗：   33kΩ\n- 信噪比： > 116 dB，全功率；> 96 分貝，THX 參考電平\n- 阻尼係數：\n    > 800 at 20 Hz\n- 功耗：\n   500瓦\n- 尺寸：\n   w 17 1/4\" xh 3 1/2\" x...","shipping_methods":[{"name":"面交/自取/不寄送","fee":0,"currency":"TWD"},{"name":"宅配/貨運","fee":0,"currency":"TWD"}],"lowest_shipping_fee":null,"payment_methods":["ATM轉帳"],"category_id":"2092075251","category_name":"後級擴大機","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":"2092075251","name":"後級擴大機","url":"/tw/%E5%BE%8C%E7%B4%9A%E6%93%B4%E5%A4%A7%E6%A9%9F-2092075251-category.html"}],"view_count":16,"watch_count":10}