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PH-1UD是八达经典的PH-1耳放的新版本。对于这款新耳放,它的外形与原来的PH-1并没有太大的差异,工艺也没有太多的改善,但内部的设计却是完全不同。PH-1是一款纯粹的耳放,只有模拟放大电路,而且采用了电子管作为输出级。而PH-1UD相比之下则集成了D/A转换电路,新的耳机放大线路舍弃了电子管,改为晶体管放大线路。而且数字和模拟部分的线路是完全独立的,再加上强而有力的电源,确保了供电的质量,这就是PH-1UD的设计特点。说到耳放产品,我最近所接触的耳放当中基本上都集成了D/A转换器,像深海塞尔HDVD800、旷世Q192、EXIMUS DP-1等都是耳放与D/A转换器的结合体,它们与我这期评论的ECI-6DS一样,都把放大部分和数字部分合为一体,从而简化了系统的组成。
PH-1UD is a new version of the Octopus PH-1 amp. For this new amp, its appearance and the original PH-1 is not much difference, the process did not improve too much, but the internal design is completely different. PH-1 is a pure amp, only the analog amplifier circuit, and the use of tubes as the output stage. The PH-1UD compared to the integrated D / A conversion circuit, the new headphone amplifier circuit to give up the tube, to transistor amplification circuit. And digital and analog part of the circuit is completely independent, coupled with a powerful power supply to ensure the quality of power supply, which is the PH-1UD design features. Speaking of amp products, I recently came into contact with the amp which are basically integrated D / A converter, such as the deep seaser HDVD800, Kuangshi Q192, EXIMUS DP-1 are amp and D / A converter Together, they, like the ECI-6DS that I reviewed in this issue, simplify the composition of the system by combining the magnification part with the digital part.