Usage Tips:Model: PP999 Output level: 2V Reference voltage: 1V Load impedance: 10K ohm S/N ratio (with A-WTD): 70dB / > THD : 0.08 for 1 kHz 3 mV inputFrequency response: 20 Hz ~ 20 kHz 2 dBInput sensitivity / impedance / phono - 3 mV / 50K ohmsDimensions (W x H x D): 9 * 5.5 * 2.6 cm Package List: 1 * Phono Preamp 1. CONVERTS PHONO SIGNALS: A turntable preamp that converts phono signals into line-level signals. This state of the art phono preamplifier can accommodate magnetic pickups with an input sensitivity of 3mV at 50k ohms.2. Low-Noise Operation: Offers excellent performance with low-noise o op amps. The output is a maximum of 2 V (PP) at 10 kOhm. It is better to position the preamp close to the source to reduce unwanted noise and interference.3. CONNECTIONS TO TURNTABLE: Connect any turntable to any sound device without a dedicated phono input for music amplification. For the receiver, this can be connected to speakers, computers, laptops and more.4. and 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.