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Both input and output have 3.5mm and RCA interfaces, which can be applied to different usage scenarios but do not support simultaneous use. You only need to choose one of them when connecting. This machine adopts attenuation tone circuit + NE5532 preamplifier compensation, with gain switch, the attenuation is -15db when no power is supplied, and the NE5532 amplifying part works for compensation when power is supplied, and the gain is 0db, that is, the input and output signals are equal. There are three adjustment knobs, which can adjust the overall volume and treble and bass respectively.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.