1,Multiple Connection Options: 2 RCA (L, R) inputs, 2 RCA (L, R) outputs, 1 1 or 4in outputs to meet the needs of different sound equipment connections. 2,Convert Signal: Use the phono turntable preamp to convert phono signals to line level signals, easily convert records to digital sound files, providing excellent sound quality. 3,Independent Volume Control: The phonograph preamplifier uses an ultra low noise operational amplifier to provide independent output volume control. 4,Compact And Durable Design: Phono preamp is housed in a metal shell for rugged durability. Compact size and portable, easy to integrate into any setup. 5,RIAA Equalization: The phono preamplifier equalizes the turntable signal according to RIAA specifications, ensuring accurate playback and delivering premium sound. Item Type: Phono Preamp Material: Iron Shell Inputs: Type: RCA Connector Impedance: 47kΩ Outputs: Type: RCA and 1 or 4in, Stereo Connectors Impedance: 50W Frequency Response: RIAA THD: 0.06 percent typ. at -40dBu or 1kHz Gain: 35dB SNR: 68 dBu at 0dBu, A Weighted 1 x Phono Preamp 1 x User Manual 1 x Adapter