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DIY 6c4/6v6 tube preamp 膽前級with 7027A tube power amp 膽後級playing vinyl female vocal 黑膠唱片女聲..



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DIY 6c4/6v6 tube preamp 膽前級with 7027A tube power amp 膽後級playing vinyl female vocal 黑膠唱片女聲.....
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Audio
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