Pre-amplifier with metal case shields the electronics from vibrational and electromagnetic interference. Special low-noise ICs used. Optimal channel separation through dual-mono circuitry. Gold plated RCA connection sockets. DC power supply (< 1 watt standby power). Features: Amplification and RIAA equalisation for MM cartridges. Small size allows installation close to record player. Technical data: Input impedance: 47k Ohm. Gain: 40dB. Output voltage: 500mV/1kHz at 5mV/1kHz. Input: 1 pair RCA/phono sockets. Line-level output: 1 pair RCA/phono sockets. Outboard power supply: 18V/500mA DC, suitable for your country's mains supply. Power consumption: 20 mA DC. Dimensions W x H x D: 107 x 30 x 75mm. Weight: 280 g without power supply.