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A new buffer from National Semiconductor delivers the industry's lowest noise and harmonic distortion for professional audio applications. Part of the high-fidelity LME audio-amplifier family, the LME49600 produces the necessary output current to drive multiple low-impedance headphones, as well as the voltage swing to drive several high-impedance headphones. Additionally, the buffer is well-suited for a wide range of other applications, including line drivers, analogue-to-digital-converter input drivers, and low-noise/wide-frequency voltage regulators. It can also drive the headphone-amplifier output stage in mixer consoles, as well as capacitive loads in low-power audio amplifiers. The device's high-fidelity specifications ensure that it can respond to highly dynamic inputs, accurately reproducing these signals without degrading them by adding distortion.