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  1. J

    DX200/220 Amp8, MAX and other EX modifications

    Because this is a RC Filter with accurate calculation together with resistors, so any change of capacitance may change the "frequence to be bypass"?
  2. J

    DX200/220 Amp8, MAX and other EX modifications

    Oh...I found the solution in your notes, I miss understand the start app silence to something else,thank you by the way. And sorry for my bad language skill. Its caused by my asperger and I hate them too. Note: UAPP plays 1 second of silence on start, which causes USB Audio interface to...
  3. J

    DX200/220 Amp8, MAX and other EX modifications

    im wondering these little keisei BP on line level seems able to "grow up" a liitle bit... @lantian What do you think?
  4. J

    DX200/220 Amp8, MAX and other EX modifications

    @Lurker0 , Sorry for bothering, and thanks for the amazing add-on. I had recently installed UAPP, but it seems not working perfectly with the add-on. 1) it's fighting with the add-on for the control of dac. So I can only choose UAPP without add-on's bit-perfect, or lurker's hiby. But there...
  5. J

    DX200/220 Amp8, MAX and other EX modifications

    I've found these little stickers that may help to save our damaged pads, I had bought one from taobao for around $2 and may try on it later, hope it could work.
  6. J

    DX200/220 Amp8, MAX and other EX modifications

    Okay.....its 3am in the morning and i don't know how to say goodbye.....(Lyrics) gotta go to sleep, hope I will have time with my AMP8 tomorrow.
  7. J

    DX200/220 Amp8, MAX and other EX modifications

    Here's an article by IBASSO, translated by Google translate, forgive google if the translation is not accurate. Audio indicator science popularization from IBASSO This article is officially authorized by ibasso to reprint, the original title "Scientific HiFi Talk 3-How to Read the Parameter...
  8. J

    DX200/220 Amp8, MAX and other EX modifications

    What? I found the home page of it with the datasheet of "AS318-b" in it. http://www.accusilicon.com/cn/asic_and_module/xo.html To your anyway, I think I am still way too far from talking about techs, data, advantage/disadvantage of replacement, that I was still standing out of the door. but...
  9. J

    DX200/220 Amp8, MAX and other EX modifications

    My Amp8 is still waiting for me, so I will say it in short form. 1) I had searched for days to purchase the "AS318-b" in 2520 case but failed. I am trying something off label. If I success, I will post the method for free, or I may start a group purchase if in needed. 2) My "AS318-b" is on...
  10. J

    DX200/220 Amp8, MAX and other EX modifications

    I am recently keep studying my dead dx220’s PCB, and try to figure out how they work and react between each others. ICs, caps, inductors, resistors, regs, transistors, op-amps.....until last week I had find something interesting on the oscillator. Blue circles in alphabets are crystals without...
  11. J

    DX200/220 Amp8, MAX and other EX modifications

    BTW, I am trying to upgrade the oscillators on my dx220..do anyone have commend on replacing an oscillator?
  12. J

    DX200/220 Amp8, MAX and other EX modifications

    Finally get the idea how this mod works...really need to omprove my ability of reading diagrams. hope i will have time to do this tonight. I've been miss the sound of amp 8 for so long.
  13. J

    DX200/220 Amp8, MAX and other EX modifications

    Hi Whitigir...wondering which 5 valves you mention was to be replaced? Was that canceled because of outdated or by other reason? And I am also asking help on the un-labeled inductor's inductance... Cause i was screwed up 2 of that by squeeze more cap in my amp8...but i don't have any equipment...
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