NE5532 Dual High-Speed Low-Noise Audio Op-Amp IC (DIP-8)

While a generic op-amp like the 741 or LM358 will technically pass an audio signal through, the NE5532 was designed specifically with audio performance in mind, offering a notably lower noise floor and enough output drive strength to handle real headphone or line-level loads cleanly. That makes it a favorite in DIY headphone amplifier builds, preamp and mixer stages, and audio mod projects where listeners can actually hear the difference a quieter, better-behaved op-amp makes compared to a general-purpose part. Its dual-channel layout conveniently covers a stereo left/right signal pair from a single chip, which is exactly the channel count most audio projects need.