1x OPA4227 - High Quality Quad Audio OP-AMP, P-DIP14, Burr Brown [ OPA4227PA ]
1x OPA4227 PA. High Quality Quad Audio OP-AMP, DIP14. Genuine Burr Brown IC's. For best audio results the op-amp should be decoupled with a 100nf capacitor between each power rail pin [+ & - ] to ground.