LINEPAUDIO B895 Five-channel Stereo Microphone Mixer with Earphone Monitoring(Black) About The Product 1. The B895 is a mini five-channel stereo mixer designed for audio and video applications with independent volume control and earphoneline output. The product has one XLR input, one 18 input and three groups stereo RCA inputs. It has enough gain and output level to connect to the power amplifier with RCA or 1 8 Jack. 12VDC adapter power supply. Channel 1 has a microphone XLR input with a switchable Phantom Power supply. Channel 2 has 18 and RCA input. Channel 3 and channel 4 have RCA jacks. The product can also output 18 headset output, can drive up to 600 ohms headphone, with a full frequency response. 2. DC PWR used to connect a DC12V power supply. 3. OUT: stereo RCA jack for connecting mixers or amplifiers. 4. CH 4 and CH 3 INPUT: stereo RCA jack for connecting signal sources such as CD player, tape deck, tuner, computer, mobile phone, tablet, etc. 5. CH 2 input: stereo RCA and a 18 jack (parallel) are used to connect signal sources, such as those mentioned in CH 3 and CH 4, or to wireless microphones or musical instruments. CH 1 INPUT: XLR Jack used to connect the microphone. A switchable jumper power source marked on the unit. Lineheadphone output: 18 stereo jack for connecting sound console, amplifier, or stereo headset. CH 1-4 LEVEL: adjust the volume of each channel. Features 1. For mixed microphone XLR input and up to three RCA input signals 2. Input impedance: 10K ohms per jack 3. CH1 gain: 32dB XLR jack (maximum gain) 4. Phantom power: for CH 1 microphone XLR 5. CH2 gain: 26dB 1 8 inch and RCA 6. CH 3 and CH 4 gain: each RCA--26dB 7. Output: 18 inch stereo and stereo RCA 8. Signal-noise ratio: > 90dB 9. THD: <0.008 10. IMD SMPTE: <0.008 11. Power supply: 12V DC adapter