[londere]

Zishan can't decide between AptX-HD and LDAC


Good to have Dual Core utilize indicators when MP3 is decoding

All credits of photos © Fe Lix Ramearez from Portable Audio Philippines - PaPhi

Dual-core? Which MCU use this?

 

[Setmagic]

Dual-core? Which MCU use this?

MCU ATSAM3U1C + BT/USB controller. Separate utilisation indicator side by side with MCU

 

[londere]

MCU ATSAM3U1C + BT/USB controller. Separate utilisation indicator side by side with MCU

So no it’s a Microcontroller or Microprocessor with dual core, it’s a standalone microprocessor with an RTOS and microcontroller dedicated for USB to I2C.

 

[Setmagic]

So no it’s a Microcontroller or Microprocessor with dual core, it’s a standalone microprocessor with an RTOS and microcontroller dedicated for USB to I2C.

Yes You are right but it's looks like that in upper right corner. This 2 rings showing CPU and Controller load.
Better picture:
- Right green ring showing utilisation when for example MP3/AAC is decoding. This is software not hardware as DSD or FLAC who utilize CPU noticeable less.
- Left orange ring showing controller load like receiving data from SD, USB or BT.

Photo © Fe Lix Ramearez

 

[cqtek]

@SomeEntityThing if You can wait 1-2 weeks for more feedback about Z4 it would be best.
You have nice 16 ohm IEMs, if Zishan will have ~100 ohm output impedance it would be mistake.
Even for 32 ohm full sized headphones that big impedance is not good.

I have answer from Zishan about output impedance and its 2 ohm

Only 2 Ohms, is it true? It would be great if it were.
Unfortunately, my Z4 will arrive on Monday or Tuesday while I'll be working all week 600km from home. I won't be able to test it until Saturday. It will be a weekend to check certain measurements....

 

[Setmagic]

Only 2 Ohms, is it true? It would be great if it were.
Unfortunately, my Z4 will arrive on Monday or Tuesday while I'll be working all week 600km from home. I won't be able to test it until Saturday. It will be a weekend to check certain measurements....

I have information from Zishan boss.
But Chinese is really bad to translations.

 

[SomeEntityThing]

Found this neat little unboxing video of the Z4, in Thai. It is actually more than an unboxing - it demonstrates UI navigation and briefly tests some features such as Bluetooth and being connected as a USB DAC

UI nav doesn't seem all that bad to me. Will need to get used to not having side buttons for volume again (I am reminded of my AGPtek A02 days from back in high school lol!) but as I plan to use this at home instead of on the go I can set aside some general grievances when it comes to quickly getting my music up the way I like it.

 

[Setmagic]

Really nice foundling @SomeEntityThing
I will pin it in main thread as well.
I see how hard is to push these buttons just old Zishan interface... but, nice USB indicator.

 

[Setmagic]

"Hi Guys,
US $15 Coupon for Zishan Z4
Discount code→ R033SPON1TCM , Limited 30 friends !
Using Dual ES9038Q2M DAC chip and adopt the latest QCC5125 Bluetooth 5.1 module
Welcome to buy."

https://a.aliexpress.com/_mrPUBlp

Seller inform me that promotion is over for now. To many Z4 orders they are waiting for more stock from Zishan.

 

[Setmagic]

@HashSlingingSlasher from Audiogon community found new feature.
Transfer files into SD card using Charging port.

Device must be connected using Charging port to Windows device and all features like BT or Player should be turn off to prevent errors.

 

[Unolord]

Seller inform me that promotion is over for now. To many Z4 orders they are waiting for more stock from Zishan.

Hopefully my July 29th order got in under the wire and won't be delayed because they are out of stock.

 

[Setmagic]

Hopefully my July 29th order got in under the wire and won't be delayed because they are out of stock.

They are not out of stock just too good offer to keep promotion.

For well known brands You need to spend few times more $$$ to have that spec.
For example New HiBy R6 costs 800$ and have similar spec, plus Android onboard.

All we need to have is comparision to similar devices to prove quality of Z4.
DSDs had high-end specification too but due to some mistakes in design and not good headphone amp section can't compare to best brands with top tier equipment.

 

[Setmagic]

I was added issues reporting to first post.

 

[Mr.HiAudio]

Maybe NiceHCK does have a new firmware ? anybody knows?

 

[Setmagic]

Maybe NiceHCK does have a new firmware ? anybody knows?

I'm in touch with Zishan friend. We will have it as soon as possible
Unfortunately prices goes higher today.