Symetrix 304 headphone distribution amplifier with sought after OEM power supply! Power supply works with other Symetrix 300 series devices. See pictures for condition; not perfect, but it’s all there and it’s been tested and is fully functional. Pots and switches are a little scratchy from lack of use, but, again, everything works. Please let me know if you have any questions and check out my other listings for additional Symetrix gear. Thanks!