[MLTKSHHBT]

Are you sure you made the update in right way? One mistake is use the zip file instead the bin file in the micro sd card

Yes, I unzipped it to the root folder of the SD card.

 

[Ver JJ]

Thanks for writing the review, very interesting.
Did you get to try DSD files, such as 11.5 Mhz?

Alright, I had tried out DSD256 / 11.5Mhz form test bench file (Link: http://www.2l.no/hires/ ), put it into a SanDisk 2Gb micro sd card (can you even find this today..........anyways) and insert it into Z2............... well it played back flawlessly until the song ends...............and............... there will be a loud.......... loud........... hiss that last for around 0.4 to 0.5 seconds (my way of judging time is quite inaccurate so just use it as a reference of how long this annoying hiss last) which scale based on how high you set your volume pot............ so please lower down the volume, in fact just turn it all the way down if you don't want your ears to scattered to pieces........ this issue/bug also happen on some of my DSD128 track too so yeah............... chill...........

 

[knudsen]

There seems already to be 2 versions of z2, one with 1000uF 16V cap (standing up) and one with 1000uF 25V (lying down). I have the first, I think I ordered the day after they came for sale on Ali (from "the banned seller"). Which version do you have?

Spoiler

 

[noknok23]

There seems already to be 2 versions of z2, one with 1000uF 16V cap (standing up) and one with 1000uF 25V (lying down). I have the first, I think I ordered the day after they came for sale on Ali (from "the banned seller"). Which version do you have?

Spoiler

hooo so you got 16v? which is as much as Z1 right? weird...

 

[nesty]

There seems already to be 2 versions of z2, one with 1000uF 16V cap (standing up) and one with 1000uF 25V (lying down). I have the first, I think I ordered the day after they came for sale on Ali (from "the banned seller"). Which version do you have?

Spoiler

@knudsen , which one is the newer version? thanks

 

[necktru]

Same as you 16v

 

[knudsen]

hooo so you got 16v? which is as much as Z1 right? weird...

@knudsen , which one is the newer version? thanks

I know nothing more than at least one person have gotten 25V... on the "sister" forum.

With my limited understanding there should be no benefit to using 25V if the actual voltage is lower than 16. If it had a higher capacitance (for example 2000uF) there could be an effect, but again only if 1000 is not enough (assuming all other specs equal).

Also changing this big cap to a better quality one seems to have no effect on the sound (again from the other forum), it is not in the signal path and I haven't found anyone who could tell why it is there at all.

My fear was that the creators found a problem with the 16V so upped to 25. But I think it is unlikely. I think its just a logistics thing that they put 25 in some, they had them lying around or something.

But I am open to other thoughts

 

[macky112]

I know nothing more than at least one person have gotten 25V... on the "sister" forum.

With my limited understanding there should be no benefit to using 25V if the actual voltage is lower than 16. If it had a higher capacitance (for example 2000uF) there could be an effect, but again only if 1000 is not enough (assuming all other specs equal).

Also changing this big cap to a better quality one seems to have no effect on the sound (again from the other forum), it is not in the signal path and I haven't found anyone who could tell why it is there at all.

My fear was that the creators found a problem with the 16V so upped to 25. But I think it is unlikely. I think its just a logistics thing that they put 25 in some, they had them lying around or something.

But I am open to other thoughts

my guess is, that cap in question is the power supply cap, thus why it is not in the signal path, and it should not affect sound.

as to my logical guess to the usage of both 16V and 25V for this cap, probably due to cost? maybe the contract manufacturer came across a batch of 25Vs that's cheaper than buying the same quantity of 16V

what I am really curious about is, has anyone measured the output impedance of the Z2 yet?

ans also, is there a picture of the back side of the PCB?

 

[knudsen]

my guess is, that cap in question is the power supply cap, thus why it is not in the signal path, and it should not affect sound.

as to my logical guess to the usage of both 16V and 25V for this cap, probably due to cost? maybe the contract manufacturer came across a batch of 25Vs that's cheaper than buying the same quantity of 16V

what I am really curious about is, has anyone measured the output impedance of the Z2 yet?

ans also, is there a picture of the back side of the PCB?

There is still a 100 ohm resistor at the output

 

[musicday]

New firmware released :FW.0.2

0.2 update log:

1. Supports AIFF music with suffix aiff aif
2. Fixed some large files ALAC music that cannot be played
3. Fixed part of the wav file at the end where was noise problem

https://pan.baidu.com/s/1eSszdHw#list/path=/ZiShan Player 固件/Z2&parentPath=/ZiShan Player 固件

Download link added to the front page for easy find.
Enjoy.

 

[musicday]

Yes, I unzipped it to the root folder of the SD card.

Please download the latest FW 0.2 firmware and try to update and let us know.
Works great for me.

 

[cqtek]

I have some different capacitor model, but 16V:



Finally I change the OAmp to LM4562HA but I can't hear any difference.

 

[cqtek]

New firmware released 1.10.2017

Thank you very much, this firmware come from the future

 

[musicday]

Thank you very much, this firmware come from the future

Thanks,what a laugh i had. Now corrected.
Was a mistake as i wanted to bring you all quickly the latest firmware.

 

[Zyder]

Anyone Z2 still cant update? I tried all method except for using a small capacity mSD. Is it a must?

I transfer the .bin file to the SD card, insert back to Z2, power on it but the status light is stable thou and no blinking at all