Product description Model : PP999 Output Level: 2V Reference Voltage: 1V Load Impedance: 10K Ohms S/N Ratio (with A-WTD): 70 dB T.H.D. : 0.08 for 1 KHz 3 mV Input Frequency Response:20 Hz ~ 20 KHz ±2dB Input Sensitivity / Impedance / Phono - 3 mV / 50K Ohms Dimensions (W x H x D)：9*5.5*2.6cm Package list:1 * Phono Preamp 1.【CONVERTS PHONO SIGNALS】: A turntable preamp that converts phono signals to Line Level Signals. This state-of-the-art circuitry phono preamp can accommodate magnetic pickups with an input sensitivity of 3mV at 50K Ohms. 2.【Low noise operation】: Offers outstanding performance with it’s Low-Noise Audio Operational Amplifiers. The output is 2V max (P-P) at 10K Ohms. It’s better to position the preamp close to the source to reduce unwanted noise and interference. 3.【CONNECTS TO TURNTABLES】: Connect any turntable to modern sound equipment without specialized phono input for amplifying music. For the receiver, this can be connected to speakers, computers, laptops and more. 4.【Plug and play】: This mini preamp has stereo RCA inputs and stereo RCA outputs. Connect the turntable to the RCA inputs and ground. Then, connect the amplifier receiver to the RCA outputs.