Specification: Item Type: Phono Preamp_x000D_Material: Iron Shell_x000D_Input:_x000D_Type: RCA Connector_x000D_Impedance: 47kW_x000D_Maximum Input Level: -23.5 dBV at 1kHz_x000D_Output:_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 0 dBu, A Weighted_x000D_Input Sensitivity: 5.3mV at 1kHz_x000D_Voltage: 100-240V Features: 1COMPACT AND DURABLE: Phonograph preamplifier is housed in a metal case for rugged durability. Compact structure design, easy to carry. 2MULTIPLE CONNECTIONS: Supports 2 RCA (L and R) inputs, 2 RCA (L and R) outputs, 1 1/4in output to meet different sound equipment connection needs. 3CONVERT SIGNAL: The phono turntable preamp converts phono signals to line level signals, providing excellent sound quality, plug and play. 4LOW NOISE: This phono preamp utilizes an ultra low noise operational amplifier and provides independent output volume control. 5RIAA EQUALIZATION: The PP500 phono preamplifier equalizes the turntable signal according to RIAA specifications to deliver premium sound. PackageList: 1 x_x000D__x000D_Phono Preamp 1 x Instruction Manual 1 x Adapter