RCA (commonly known as Lianhuatou audio cable) is unbalanced, analog digital XLR (commonly known as Canon audio cable) is balanced/unbalanced, analog digital AES/EBUTRS JACKS (commonly known as junior year) is balanced/unbalanced, analog TS JACKS (commonly known as junior year) is unbalanced, analog BANABA PLUG (banana plug) rear output speaker cable, analog SPEAKON (speaker plug) rear output speaker cable, Analog PHONIX (Phoenix plug) engineering installation and use, balance and imbalance are defined by the manufacturer, most of which are used in the professional market. At the same time, network cable and high-definition coaxial cable are also used as digital transmission. RJ45 (crystal head) digital is used, with various entity formats. BNC (Q9) digital is determined by the manufacturer, transmitting WORDCLOCK and MADI signals