1. Plug and Play: Connect the amplifier directly to the mixing console, and turn on the 48V power supply of the sound card at the microphone input interface to provide power to the microphone amplifier. This provides a fixed gain volume of+28DB, which is simple and convenient (capacitor microphones that require power are not suitable because the amplifier deplete the 48V power supply). 2. 28DB High Gain: When combining the sound card and amplifier, it can provide a pure gain of 28DB, which is equivalent to increasing the direct drop of the sound card amplifier by 28DB, making post processing sound more convenient. 3. Lossless Amplification: The gain effect of the amplifier hardly affects the initial sound quality received, but can actually reduce the noise problem caused by excessive gain of the sound card itself, which can be used with confidence. 4. Multi Scenario Application: 28dB gain range microphone preamp is suitable for studio recording, news live streaming, stage performances, large scale speeches, home entertainment, instrument performance and other scenarios. 5. Fashionable and : The inline microphone preamp features a sturdy matte metal casing with a stylish and minimalist appearance, top texture, slim and design, making it very convenient to carry around. Signal-to-Noise Ratio: 3.0mA Gain Boost: +28dB Connector: XLR 3-pin (male/female) Power Supply: 48V Frequency Range: 20Hz-20kHz Impedance: 1350Ω Recommended Load Impedance: 1kΩ Current Draw: 110dB Sampling Rate: 24-bit/48kbps Audio Maximum Output Level: 9uV (A) Maximum Input Level: 8.3dBV/26V (0.5% 1kHz) Color: Black Material: Plastic+Metal Package Contents: 1 x Microphone Amplifier Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.