最近，客戶對我們使用的5V線性電源(LPS)有很多好的反饋，所以你可能知道店主在上週Facebook "CAS論壇上"組織了一個“團購-線性電源”。其結果是如此驚訝，一些新的客戶使用後說，高質量的線性電源真的可以改善在Raspberry Pi 3音質方面，這是因為Raspberry Pi 3內部的組件絕不是由發燒友建造的。 毫無疑問...線性電源(LPS) 進一步提高低音，更好的微細節，高音更潤滑。
因此，由於有其他發燒友的需求，店主開始對這個“團購線性電源”進行特殊修改。包括更換發燒友的電源插座，更換發燒友保險絲，在Telema變壓器附近的IC上放置EMI shielding, AfterDark audiophileMAT etc.
This week the shop owner will talk about the important of using LPS for Raspberry Pi 3
There is so many client asked shop owner, what is the different between AfterDark. daisyCAS and AfterDark. audiophileCAS DTD?
shop owner will reply: The major different is audiophileCAS DTD is using a high quality LPS instead of Switching Power Supply.
The other major different is using industrial MicroSD card instead of consumer grade MicroSD card.
Recently, we have a lot of good feedback on using 5V LPS, therefore, you may know that the shop owner was organized a "Group Buy" on this special 5V LPS. The result is so surprised, some new joiner using Raspberry Pi 3 indeed whatsapp the shop owner saying it really really improve a lot from bass, the authority of sound stage, better micro details, and much smooother in high-treble.
Therefore, due to demand on other client, the shop owner started to received special modification on this "Group Buy" Linear Power Supply. It includes request to change the power-Inlet to audiophile one, changing audiophile fuse, placing EMI label on the IC near the Telema transformer. Placeing AfterDark audiophileMAT under the LPS etc.
The client told the shop owner: this micro change can improve the weak point of the Linear Power Supply. Due to costing, most factory cannot affort to install this expensive component to LPS. So, please take this job and modify for this Linear Power Supply.
This was a busy week after "Group Buy" order. One day, the shop owner received another recently customer request to replace the 5V DC MicroUSB Cable with something special material.
The client ask: It is possible to change the power cable, not to use the MicroUSB connector, just put it directly to the GPIO ports inside the Raspberry Pi 3?
The shop owner reply: Yes, this can be done with some modification work. Please wait for my good news next month.
Therefore, we start to design the cable with customer requirement and initiated AfterDark. Project ClayX Research and Development for this special power cable.
There two major components for AfterDark sound tuning. The carefull selection of cable core wire material, the shielding material and the power conditioning parts for Raspberry Pi 3 on 5V and 3.3V. Every steps can improve dramatically with better implementation on power supply.