Features 1.Multiple Connection Options: 2 RCA (L, R) inputs, 2 RCA (L, R) outputs, 1 1/4in 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 s, ensuring accurate playback and delivering premium sound. specificationItem Type: Phono Preamp_x000D_ Material: Iron Shell_x000D_ Inputs: _x000D_ Type: RCA Connector_x000D_ Impedance: 47k_x000D_ Maximum Input Level: -23.5 dBV at 1kHz_x000D_ Outputs: _x000D_ Type: RCA and 1/4in, Stereo Connectors_x000D_ Impedance: 50W_x000D_ Maximum Input Level: +11.5 dBV at 1kHz_x000D_ Frequency Response: RIAA_x000D_ THD: 0.06%typ. at -40dBu/1kHz_x000D_ Gain: 35dB_x000D_ SNR: 68 dBu at 0dBu, A Weighted_x000D_ Input Sensitivity: 5.3mV at 1kHz_x000D_ Voltage: 100-240V PackageList1 x_x000D_ _x000D_ PhonoPreamp 1 x User Manual 1 x Adapter