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This is a preamplifier NE5532 board and it can replace 4558, LM833, LT1057, AD827, OPA2604. 1 Piece NE5532 Board. Rin----R, Right Channel Input., Left Channel Input. Improve your audio quality. GND----Ground, Battery Negative.
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.