Product Description: PP400 Phono Turntable Preamp with Stereo RCA Input/OutputDC 12V Power Adapter and Dual Gain: The PP400 phono amplifier includes a DC 12V power adapter, allowing for versatile application scenarios without limitations. To accommodate the relatively weak signal of phonographs, the PP400 features dual gain adjustments for both input and output, ensuring optimal volume levels for perfect playback.Low Noise Operation: Equipped with a low noise operational amplifier, the PP400 delivers excellent performance with minimal interference. The output is 2V (PP) at a maximum of 10K ohms. For best results, place the preamp close to the audio source to minimize unwanted noise and interference.High Sensitivity: This phono turntable preamp is designed to convert sound signals to line level signals, thanks to its advanced circuit and high input sensitivity for electromagnetic pickups. The independent knob control makes operation more convenient, allowing for precise adjustments to suit your audio preferences.Connect to Phono Turntable: The PP400 phonograph amplifier seamlessly connects any turntable to modern sound equipment, eliminating the need for a dedicated phono input. It can be easily connected to speakers, computers, laptops, and more, amplifying your music effortlessly.Plug and Play: Featuring stereo RCA inputs and outputs, this mini preamp offers a straightforward plug-and-play experience. Simply connect your turntable to the RCA inputs and ground, then connect the amplifier receiver to the RCA output. Enjoy hassle-free setup and operation with this user-friendly design.Enhance your audio experience with the PP400 Phono Turntable Preamp, designed for superior sound quality and ease of use across a variety of audio devices.