德生（Tecsun）PL-990 全波段数字调谐收音机

评测依据

• review_count：12500
• rating_avg：4.8
• brand_reputation：0
• merchant_count：0
• price_range：[0,999]
• dimension：battery
• sources：["DeepSeek"]
• time_range：{"from":"2026-06-26 02:56:45","to":"2026-06-26 02:56:45"}
• intros：{"brand_intro":"德生（Tecsun）是中国知名的收音机品牌，创立于1994年，总部位于广东东莞。专注于收音机研发与生产，以高品质、高灵敏度、全波段接收著称，产品远销全球60多个国家。德生收音机深受广播爱好者、户外爱好者及老年用户喜爱，被誉为\"中国收音机第一品牌\"，多次获得行业创新奖项。","product_intro":"德生PL-990是一款旗舰级全波段数字调谐收音机，支持FM/SW/MW/LW及航空波段。采用DSP数字信号处理技术，灵敏度高、抗干扰强。配备大尺寸液晶屏、双喇叭立体声、耳机输出接口，支持USB充电和TF卡播放。外观经典，操作便捷，适合专业收听和日常使用。","key_specs":["频率范围：FM 87-108MHz / SW 1711-29999kHz / MW 522-1620kHz / LW 153-513kHz","耳机输出：3.5mm立体声接口，支持立体声/单声道切换","电源：内置18650锂电池，USB充电","扬声器：双喇叭立体声，功率2W×2","尺寸：约280×175×70mm","重量：约1.2kg"]}
• alt_products：[{"product_name":"德生（Tecsun）PL-990 全波段数字调谐收音机","brand":"德生","model":"PL-990","price":598},{"product_name":"熊猫（PANDA）T-09 全波段数字调谐收音机","brand":"熊猫","model":"T-09","price":299},{"product_name":"索尼（SONY）ICF-506 全波段便携收音机","brand":"索尼","model":"ICF-506","price":249}]
• kol_quotes：["德生PL-990是国产收音机的标杆之作，接收能力媲美进口千元机。","耳机输出底噪控制极佳，适合深夜收听短波节目。"]
• scoring_breakdown：[{"source":"word_of_mouth","score":92.89999999999999,"weight":0.2,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户普遍称赞PL-990接收性能极强，尤其在短波和航空波段表现优异。耳机输出音质清晰，立体声效果明显，无底噪。操作界面友好，大屏显示清晰，适合中老年用户。部分用户反馈体积稍大，但整体做工扎实，性价比高。京东好评率98%，是德生最畅销的型号之一。","source_count":0}},{"source":"objective","score":96,"weight":0.5,"confidence":0.7,"details":{"dimension":"battery","rating_avg":4.8,"review_count":12500,"note":"proxy via rating_avg, v3 will parse specs_json"}},{"source":"user_review","score":96,"weight":0.15,"confidence":1,"details":{"rating_avg":4.8,"review_count":12500,"source":"product_reviews_aggregate"}},{"source":"expert","score":82,"weight":0.15,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"sample":["德生PL-990是国产收音机的标杆之作，接收能力媲美进口千元机。","耳机输出底噪控制极佳，适合深夜收听短波节目。"]}}]
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