Big sound from a small speaker. XL technology is the formula of the finest SA woofer designs. XL technology is only available in SA speakers.
小型喇叭爆发强劲的声音。XL技术是出色的sa低音喇叭设计的公式，仅适用于SA喇叭。
NingBo ETTON Electronics Ltd. Company set up in 1995. Product include car speaker, Household woofer unit, pa speaker Cabinet, Raw materials of speaker and Boom box, etc.
宁波尊隆电子有限公司成立于1995年，产品包括汽车扬声器、家庭音响高低音单元、舞台音箱、扬声器配件及密封式音箱等。
NingBo ETTON Electronics Ltd. Company set up in 1995. Product include car speaker, Household woofer unit, pa speaker Cabinet, Raw materials of speaker and Boom box, etc.
宁波尊隆电子有限公司成立于1995年，产品包括汽车扬声器、家庭音响高低音单元、舞台音箱、扬声器配件及密封式音箱等。
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