Product DetailsNowadays, many hard disk recorders and computer audio interfaces dont have condenser microphone amplifier and microphone power supply, so that the condenser microphone cannot be used directly upon insertion. To address this problem, we provide you with LINEPAUDIO Two-channel Condenser microphone Amplifier.LINEPAUDIO A961 provides two high-quality microphone PreAmps, XLR balanced input, with gain control and 48V phantom power supply, so that any device only with line input port can readily use after connected to the condenser microphone. In addition, A961 also provides 2X 6.35mm high-impedance input ports, you can record by directly inserting the electric guitar, bass or other instrument Product features2X balanced XLR microphone input port, with independent 60dB gain switch knob and 48V phantom power switch.2 high-impedance TS input port, with independent 40dB gain switch knob.2X TRS balanced /non-balanced output port.The lowest SNR in similar products, 48V phantom power supply, ultra-compact architectureFrequency response range: 5hz - 50khz, +0-3dBMIC gain: Up to 60dBMIC input impedance1K OhmLine input gain: Up to 40dBLine input impedance: 100K OhmsNet weight: 625 gWeight with package:724 gProduct Dimension: L140 mm X W 83mm X H 42 mmPackage dimension: L 200 mm X W 180 mm X H 55mm Packing list1 X A961 Two-channel Microphone Amplifier Electric Guitar Electric Bass Amplifier1 X AC9V Power Adapter (American Standard), length: 100CM