[Usage] Operational amplifier OPA627: Features field effect transistor input, suitable for preamplifiers, power amplifiers, output buffers, voltage amplifiers, and headphone amplifiers. Delivers warm and pleasing sound with detailed, soft, and smooth audio performance, offering high clarity and dynamic range. Can replace or upgrade common dual op amps in audio applications such as LM833, LM4562, 4558, 5532, 4556, LF353, OP275, AD712, AD827, AD746, AD797, OPA2604, OPA627 to dual, OPA637 to dual, AD797 to dual, AD843 to dual, AD847 to dual, etc. [Appearance] Gold-plated adapter board pins. OPA627AU SMD single op amp with high-quality adapter board and fully gold-plated contacts. [Instructions for use] When replacing the op amp, carefully align the notch on the top edge of the op amp with the notch on the IC socket before insertion. Do not insert backwards to prevent damage. Type: Dual Op Amp Module Model Number: OPA627 Color: Blue + Black Material: Plastic + Metal Package Contents: 1 x Dual Op Amp Module Note: Light and display differences may cause slight variations in color between the image and actual item. Measurement may vary by +/- 1-3 cm.