{"product_id":"douk-audio-u3-pro-hifi-mini-headphone-amplifier-class-a-desktop-amp-for-headsets-dc5v","title":"Douk Audio U3 PRO HiFi 迷你耳机放大器 A 类桌面放大器，适用于耳机 DC5V","description":"\u003cdiv style=\"text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e特征\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cul style=\"text-align: left;\"\u003e\n\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e增强兼容性：U3 PRO 配备 3.5 毫米 AUX\/立体声 RCA 输入和 3.5 毫米\/6.35 毫米耳机插孔输出，可与多种音频源兼容，包括 MP3 播放器、iPod、智能手机、平板电脑、电脑和 CD 播放器等。其输出可连接各种耳机，提供多种聆听体验，支持大多数耳机型号。\u003c\/span\u003e\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cul style=\"text-align: left;\"\u003e\n\n \u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e内置升压电路：采用创新电路设计，内置升压电路，即使仅采用直流5V供电，放大电路也能始终工作在±14V的高电压下，底噪指标优异。频响延伸宽广，瞬态响应优异，纯净度和透明度极佳，动态范围良好。\u003c\/span\u003e\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cul style=\"text-align: left;\"\u003e\n\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e卓越的输出功率：32Ω负载下总输出功率高达1500mW，U3 PRO可轻松驱动任何低阻抗或高阻抗（18-600Ω）的耳机。工作于A类状态，超低失真，声音温暖细腻，饱满圆润，音质卓越。\u003c\/span\u003e\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cul style=\"text-align: left;\"\u003e\n\n \u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e经典OP+BUF架构：U3 PRO采用OP42和BUF634，打造纯直流放大电路。采用可插拔运放插座设计，OP42可替换为OP17、AD797、AD843、AD847、OPA627等运放，方便升级不同的运放，为发烧友带来丰富的DIY乐趣和可玩性。\u003c\/span\u003e\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cul style=\"text-align: left;\"\u003e\n\n\u003cli style=\"line-height: 1.5;\"\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e高性价比：迷你尺寸，外观精美，为所有音响爱好者带来巨大惊喜，轻松驱动市场上大多数耳机，提供更大的功率，更好的声场和细节，非常适合家庭\/办公室桌面音响系统的使用。\u003c\/span\u003e \u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cdiv style=\"text-align: left;\"\u003e\n\n\u003chr\u003e\n\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv style=\"text-align: left;\"\u003e\n\n\u003cdiv style=\"line-height: 1.5;\"\u003e温馨提示：\u003cbr\u003e 1. 若无DC 5V电源适配器，请自行准备原装高品质电源适配器（DC 5V ≥1A）。注意：输入电压超过5V会导致设备损坏。\u003c\/div\u003e\n\n \u003cdiv style=\"line-height: 1.5;\"\u003e2. 如果电源适配器的电流低于1A，U3 PRO将无法正常工作。\u003c\/div\u003e\n\n\u003cdiv style=\"line-height: 1.4;\"\u003e \u003cspan style=\"font-family: 'Times New Roman';\"\u003e3.3.5mm和6.35mm耳机接口可以同时输出，请勿同时使用RCA和AUX输入，否则会造成混音。\u003c\/span\u003e\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv style=\"text-align: left;\"\u003e\n\n\u003chr\u003e\n\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e参数：\u003c\/span\u003e \n\n\u003c\/div\u003e\n\n\u003cdiv style=\"text-align: left;\"\u003e\n\n\u003cul style=\"text-align: left;\"\u003e\n\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e音频输入：立体声 L\/R RCA、3.5mm AUX\u003c\/span\u003e\u003c\/li\u003e\n\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e音频输出：3.5mm\/6.35mm耳机插孔\u003c\/span\u003e\u003c\/li\u003e\n\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e输出功率：≥1500mW（32Ω）\u003c\/span\u003e\u003c\/li\u003e\n\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e匹配耳机阻抗：18-600Ω\u003c\/span\u003e\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e最大输出幅度电压：±14V\u003c\/span\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\n\u003c\/li\u003e\n\n \u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e频率响应：20-30KHz\u003c\/span\u003e\u003c\/li\u003e\n\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e信噪比：≥110DB\u003c\/span\u003e\u003c\/li\u003e\n\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e输入电压：DC 5V（≥1A）\u003c\/span\u003e\u003c\/li\u003e\n\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e尺寸（宽*深*高）：68*92*32毫米\/2.68*3.62*1.26英寸\u003c\/span\u003e\u003c\/li\u003e\n\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e净重：164克\/0.36磅\u003c\/span\u003e\u003c\/li\u003e\n\n\u003cli style=\"line-height: 1.5;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e包装重量：300克\/0.66磅\u003c\/span\u003e\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003cp style=\"text-align: left;\"\u003e包装清单\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli style=\"line-height: 1.5; text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1*U3 PRO耳机放大器\u003c\/span\u003e\u003c\/li\u003e\n\n\u003cli style=\"line-height: 1.5; text-align: left;\"\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1*USB 转 DC 线缆\u003c\/span\u003e\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\n\u003c\/div\u003e\n\n\u003c!----\u003e","brand":"doukaudio","offers":[{"title":"我们","offer_id":47406971617512,"sku":"XZ-U3-PRO-US","price":54.99,"currency_code":"USD","in_stock":true},{"title":"英国","offer_id":47406971650280,"sku":"XZ-U3-PRO-UK","price":54.99,"currency_code":"USD","in_stock":true},{"title":"欧盟","offer_id":47406971683048,"sku":"XZ-U3-PRO-DE","price":54.99,"currency_code":"USD","in_stock":true},{"title":"非盟","offer_id":47406971715816,"sku":"XZ-U3-PRO-AU","price":54.99,"currency_code":"USD","in_stock":true},{"title":"其他","offer_id":47406971748584,"sku":"XZ-U3-PRO","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/1_2a4af575-efe7-4f44-b4ca-18910257f18e.jpg?v=1722241027","url":"https:\/\/duukaudio.com\/zh\/products\/douk-audio-u3-pro-hifi-mini-headphone-amplifier-class-a-desktop-amp-for-headsets-dc5v","provider":"Douk Audio","version":"1.0","type":"link"}