Inputs:Line: 10K ohm input impedance; 80mV RMS sensitivity for 0dB outputMic: 600 ohm input impedance unbalanced; 1.5mV RMS sensitivity for 0dB output; 400mV RMS max inputPhono: 47k ohm input impedance; 1.3mV RMS sensitivity @ 1kHz for 0dB outputOutputs:Line: 7V RMS maxHeadphone: 0.5W into 47ohmSignal to Noise Ratio (maximum output JIS-A weighted):Line: Better than 100dBMic: Better than 95dBPhono: Better than 85dBDistortion:Less than 0.05%Frequency response:Line: 20 – 20,000 Hz ±0.5dBMic: 20 – 15,000 Hz ±0.5dBPhono: ±1dB; -3dB attenuation at 20 Hz to reduce rumble and feedbackChannel Equalizer:Bass: +12 / -35dB at 20 HzMid: +12 / -25dB at 1.3 kHzTreble: +12 / -20dB at 15 kHzChannel fader kill:Better than 90dB at 1 kHzCrossfader kill:Better than 75dBCrosstalk:Better than 80dB at 1 kHz输入:2唱机/线路切换(PCA),四线(PCA),麦克风(1 / 4“)输出:硕士(PCA),记录(PCA),耳机(1 / 4“立体声)陡峭的3频段均衡器/旋转每个通道上死亡麦克风输入与均衡六段LED显示信号强度的监测反向和坡度的crossfader控制BONUS INPUTS FOR TOTAL PERFORMANCE.M4 is a three-channel tabletop mixer designed for any DJ who needs maximum flexibility. It features a replaceable crossfader with reverse and slope controls, a 1/4" microphone input with EQ, and plenty of routing for phono and line level devices.Where M4 really shines is its impressive input section. Two switchable phono/line inputs plus four more dedicated line inputs give you a total of SIX inputs! Add Master and Record outputs, and steep three-band EQ/rotary kills on each channel, and you've a powerhouse package that's ready to handle whatever the gig throws at you.M4 has the inputs, controls, and features to turn what would be a problem for the average mixer into a simple plug-in. Don't get stuck without enough inputs at your next gig. Upgrade to M4 – you'll be glad you did!