intros：{"brand_intro":"拜亚动力（Beyerdynamic）是德国专业音频设备制造商，成立于1924年，是全球历史最悠久的耳机品牌之一。以生产高品质监听耳机和麦克风闻名，DT系列是录音室和发烧友的经典之选。品牌坚持德国制造，注重声音的准确性和耐用性，在专业音频领域享有极高声誉。","product_intro":"DT 900 Pro X是拜亚动力新一代开放式监听耳机，专为音乐制作、混音和Hi-Fi欣赏设计。采用新一代STELLAR.45驱动单元，振膜材料升级，声音更通透自然。开放式结构带来宽阔的声场和精准的定位。头梁和耳罩采用天鹅绒材质，佩戴舒适。可换线设计，附赠两根不同接口的线材。阻抗48欧姆，易于驱动。","key_specs":{"驱动单元":"45mm STELLAR.45动圈","频率响应":"5Hz-40,000Hz","阻抗":"48欧姆","灵敏度":"100dB SPL (1mW/500Hz)","连接方式":"有线（3.5mm/6.35mm插头，可换线）","重量":"约345g"}}
alt_products：[{"product_name":"拜亚动力 DT 900 Pro X 头戴式开放式耳机","brand":"Beyerdynamic","model":"DT 900 Pro X","price":1899}]
kol_quotes：["耳机大家坛版主：'DT 900 Pro X是拜亚近年最成功的产品，声音完成度极高。'","音乐制作人李荣浩：'混音时我常用它，声音非常准确。'"]
scoring_breakdown：[{"source":"word_of_mouth","score":92.29999999999998,"weight":0.2,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户普遍认为DT 900 Pro X是2000元价位最值得购买的开放式监听耳机之一。声音中性、解析力极高，细节丰富，声场宽广，非常适合古典、爵士和器乐。佩戴舒适，长时间使用不夹头。做工扎实，德国制造品质可靠。但开放式设计漏音严重，不适合嘈杂环境使用。低频量感偏少，不适合追求重低音的流行乐爱好者。","source_count":0}},{"source":"objective","score":94,"weight":0.5,"confidence":0.7,"details":{"dimension":"battery","rating_avg":4.7,"review_count":28000,"note":"proxy via rating_avg, v3 will parse specs_json"}},{"source":"user_review","score":94,"weight":0.15,"confidence":1,"details":{"rating_avg":4.7,"review_count":28000,"source":"product_reviews_aggregate"}},{"source":"expert","score":82,"weight":0.15,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"sample":["耳机大家坛版主：'DT 900 Pro X是拜亚近年最成功的产品，声音完成度极高。'","音乐制作人李荣浩：'混音时我常用它，声音非常准确。'"]}}]