ITEM NAME:2Pcs HiFi MX50 SE 2.0 Dual Channel 100W + 100W Stereo Power Amplifier DIY K Z2U1 2Pcs HiFi MX50 SE 2.0 Dual Channel 100W + 100W Stereo Power Amplifier DIY K Z2U1 Less distortion, better control and resolution Single differential input, single-ended voltage amplifier stage, three-stage inverted darington output. The output stage uses the KTB817, KTD1047 PHILIPS KEC, ST transistor, CBO capacitor of EVOX production. KEMET, monolithic capacitors TSK. Supply voltage: + -15 VA + -45 V Output power: 100W8R (+ -42V) Voltage gain: 34 times Input sensitivity: 1.2V100W RMS 8 Europe SNR: more than 98DB Distortion: Less than 0.009 THD 1 K HZ 10 W Output stage standby current per IQ channel approximately 30 mA Note:The actual product is a DIY kit, not a finished product. size:77*74mm Material:Plastic + metal colour:Blue + black Package Contents: 1 * Pair MX50 SE 2 channels Power Amplifiers Audio Diy Kit.1 Pair MX50 SE 2 channels Power Amplifiers Audio Diy Kit. Note:The actual product is a DIY kit, not a finished product. Output power: 100W8R (+ -42V).