DESCRIPTION : Professional 4-channel mixing console and path monitor plus effects processor with two mono channels and one stereo tape channel AUX-bus main channel output, one AUX output and reverse, 2-band EQ for each input channel, built-in professional reverb, 2-bus balanced electronic display With input gain and high bass adjustment, built-in +48 V phantom power, high definition headphone jack port, MP3 streaming, PC sound card function XLR plug and phone type plug can connect whatever you want to use the microphone or instrument. The combination of A4 and the condenser microphone is more excellent, the A4 can be used with USB bus power or a mobile battery (power bank). Note: USB power supply: requires current over 1.5A, USB power supply voltage is higher than 5V Stereo input connector used to connect line level instruments such as electronic keyboards and audio equipment. Two types of connectors are available: phone type and RCA pin type الحالة جديد