宁波正盛音响科技有限公司 / Ningbo Zhengsheng Audio Technology Co., Ltd. (ZHENGSHENG / huni)
电竞与影音座椅用低频振动同步游戏/影片冲击，提升沉浸感。需兼顾坐垫舒适、噪音与线束走线。正盛可提供中功率振子与驱动方案。
Gaming/AV chairs use LF vibration synced to game/movie impacts. Balance comfort, noise and harness routing. Zhengsheng supplies mid-power vibrators and drivers.
腰靠与坐垫后部为主；避免硬碰骨架异响；功率常用 6–18W。多点时用多通道功放分区。
可参考智能沙发椅方案中的影音体感思路，缩放到座椅结构。
Lumbar and rear seat first; avoid rattle on frame; often 6–18W. Zone with multi-channel amps.
Adapt smart-sofa AV haptic ideas to chair chassis scale.