0 สมาชิก และ 1 บุคคลทั่วไป กำลังดูหัวข้อนี้
ขอบคุณครับ พี่ KJ ... ตอนนี้ผมเลยมีทางเลือก เพิ่มขึ้นอีกถ้า ผมเปลี่ยนหัวสาย KJ Digital 1 เป็น Next Gen ใช้กะชุดดูหนัง แล้ว ย้าย MC2 กลับไปชุดฟังเพลง โดยเปลี่ยนหัวไปเป็น XLR จะดีมั๊ยครับ ...
สาย digital แบบ 75 ohms เนี่ยเป็นแบบ coaxial ที่เราใช้กันทั่วไป.... ส่วนแบบ AES/EBU 110 ohms จะเป็นแบบ balanced XLR ครับ
Digital cables are used to connect digital sources to a seperate DAC or A/V receiver. There are three common interfaces, optical fiber (Toslink), 75 Ohm coaxial (s/pdif) and 110 Ohm balanced (AES-EBU). Coax is generally considered superior to optical fibres, while the AES-UBU is only common in pro gear. Given the choice between coaxial or optical, choose coax. Differences between various cables are reported to be slight to insignificant, so it certainly isn't worth agonizing over. Just keep the following guidelines in mind :Digital information is carried over frequencies of many MHz. This in many times higher than audio, and as a consequence the characteristic impedence of the cable is important. s/pdif digital cables should be coaxial, with a 75 Ohm impedance, good shield coverage and low capacitance. This is also the recipe for video cable.There is some debate whether using true 75 Ohm RCA connectors is of any use when the impedance of typical RCA panel jacks are not anywhere near 75 Ohms. In my opinion give the high quality and low price of the Canare connectors, there is no reason to use anything else.Keep the cables short! If the run is less than 1 m, and you've cleared the above two points on cables and connectors, its time to move on to sections of your audio system more worthy of attention.
AES/EBU (Audio Engineering Society/European Broadcasting Union) is the name of a digital audio transfer standard. The AES and EBU developed the specifications for the standard. The AES/EBU digital interface is usually implemented using 3-PIN XLR connectors, the same type connector used in a professional microphone. One cable carries both left- and right-channel audio data to the receiving device. AES/EBU is an alternative to the S/PDIF standard. S/PDIF (Sony/Philips Digital Interface) is a standard audio transfer file format. It is usually found on digital audio equipment such as a DAT (Digital Audio Tape) machine or audio processing device. It allows the transfer of audio from one file to another without the conversion to and from an analog format, which could degrade the signal quality. The most common connector used with an S/PDIF interface is the RCA connector, the same one used for consumer audio products. An optical connector is also sometimes used.
