{"product_id":"cinema-mx122","title":"MX122 — 影院次低音音箱","description":"\u003cp\u003eMX122 是 MX 系列面向中小影厅的无源影院次低音音箱，用于银幕 LFE 声道。系统由两只 12″ 低音单元（65.5 mm 音圈、28.6 mm 卷幅、180 mm 磁钢，与 MX121 同款）与 MDF 倒相箱体组成，箱体表面为 PVC 贴皮饰面；频响 38 Hz–500 Hz（±3 dB），−10 dB 处可用至 29 Hz，标称阻抗 4 Ω。\u003c\/p\u003e\u003cp\u003e98 dB 灵敏度与 600 W AES 100 小时额定功率，给出 125.8 dB 的额定最大声压级（连续口径）。两只单元在同一箱体内以 4 Ω 单一负载由一路功放通道驱动，为长冲程与受控低频工作提供结构基础。建议以 140 Hz 低通与主声道衔接，并以 30 Hz 高通限制过量位移。箱体 997 × 498 × 482 mm、净重 43.3 kg，适合按厅深与 LFE 目标以数量配置。\u003c\/p\u003e","brand":"SOVOX","offers":[{"title":"Default Title","offer_id":54108031025336,"sku":"MX122","price":0.0,"currency_code":"CNY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0898\/3648\/6840\/files\/MX122_photo_37c5dfef-f1f9-4a9b-a1f3-aa816a47f485.png?v=1789532578","url":"https:\/\/www.sovox.com\/zh-cn\/products\/cinema-mx122","provider":"SOVOX","version":"1.0","type":"link"}