Check the listing for details. Spectra Sonics 400RS Power Supply. Condition: Used. Listed at 699.00 USD. Spectra Sonics 400RS Power Supply Sold as is. Item was kept in clean environment and in amazing condition. Extremely well built rack-mountable gear. Minor surface wear from mounting. See photos for more details. Designed specifically to power solid state amps in high performance and critical low noise applications. The all silicon circuitry (10 silicon transistors) provides extremely close regulation, exceptionally low noise output, electronic current limiting, electronic short circuit protection, over-voltage protection, and remote voltage sensing provisions to correct voltage errors at the load location. Input Voltage: 105V - 125V ACOutput Voltage: 24V DCOutput Current: 2 Amps MaximumRegulation: within .005V, No Load to Full LoadTotal Hum and Noise: not over .0001V (20Hz-20kHz)Ambient Temp. Limits: -40°C to 70°CDimensions: 5.25"H x 6"D x 19"WFeel free to message us with any questions or concerns!