george72 Posted June 5, 2023 Posted June 5, 2023 Hi, I have a Spark 734 tube amp and i search for a schematic, please. Have you use this amp? Thank you
stereo coffee Posted June 5, 2023 Posted June 5, 2023 Try an email to Cayin service@cayin.cn https://en.cayin.cn/afterSale/9.html Zhuhai Spark Electronic Equipment Co., Ltd. 9 Lianfa Road, Liangang Industrial Park, Shuanglin Zone, Zhuhai, China +86 0756 3828711
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