American Playback Designs MPD8 DAC decoder:
In addition to using PLINK optical fiber to receive digital signals from MPT-8, there are also digital inputs such as AES, Coax Toslink, USB. There are 3 PLINKs in MPD-8, one is specially used for MPT-8, and the other is PLINK in in Plink in One is PLINK OUT, corresponding to other Playback equipment. The analog output XLR (angle is 2 positive) and RCA each group. The more special output is 4.1VRMS. The MPD -8 has a volume control function. It is a real analog front -stage sound control. It can also be fixed to -6db, -3DB, 0db, +3DB, +6DB. If it is 0dB, the output is 4.1VRMS. Playback Designs Digital-to-Blind Converter never uses the market decoding chip, but FPGA, which is programmed by itself. A total of 4 FPGA processing chips were used in the MPD-8, and the left and right output channels were installed on the independent circuit board. The power supply is used for three groups, one for digital circuit, and the other two groups are used on the analog circuit of the left and right channels. All digital input signals have special algorithms and power supply to avoid negatively affected the super -sensitive decoding circuit. The MPD-8 does not provide the function of external clocks. The internal clock design uses MEMS (MicroelectromeChanical System Oscillator), which is higher than the quartz shocks, which is less affected by temperature and mechanical vibration, and the time base error is lower. And Mr. Andreas Koch believes that the clock should be close to DAC as much as possible, which can ensure that it will not be affected by the potential harmful factors of external sources.