This electronic preamplifier stands up to the test and will provide you with serious sound performance. The PP444 is perfect for bringing your studio equipment's phono-level output to a more suitable line-level output. It'll take your audio signal, amplify its strength and prepare it for further processing by your receiver or amplifier. Preamps technically provide voltage gain to your desired equipment and are key to assisting the signal source, whether it's a turntable, musical instrument or microphone. The ultra-low noise audio conditioning circuitry allows the preamp to boost audio to levels that are more manageable for various types of audio equipment. You'll find it easier to adjust the recording level volumes of different sources from microphones and instruments alike. You should position your preamp close to the source to reduce unwanted noise and interference. Preamps can sometimes come built into the stereo equipment, but if that's not the case, the PP444 is an easy install, wise choice and great addition to any musician or producer. Take your sounds and audio production skills to the next level with the PP444 Preamplifier. Converts Phono Signals to Line Level Signals State-of-the-Art Circuitry Accommodates Magnetic Pickups Ultra-Low Noise Operation Improves Sound Performance Connects to Turntables and Other Studio Equipment Input Sensitivity: 3mV at 50K Ohms (Phono) Dedicated RCA and 1/4'' Output Connectors Output: 2V max (P-P) at 10K Ohms DC 12-Volt Power Adapter Included Frequency Response: 20 Hz ~ 20 KHz 2dB S/N Ratio (A-WTD): 70 dB - Output Level: 2V THD: 0.08% @ 1KHz and 3mV Input | S/N Ratio: 70dB Input Sensitivity/Impedance/Phono 3 mV / 50K Ohms Load Impedance: 10K Ohms - Reference Voltage: 1V d Dimensions (W x H x D): 3.54" x 2.13" x 1.02"