Obscure Chinese DAPs
Jun 21, 2023 at 4:46 PM Post #7,879 of 8,127
Hi again! I just got my RUIZU A55, it works awesome, and the sound is nice, but there's a problem with the latest firmware. When I turn on my dap and select track there's this LOUD clicking sound and it plays track on max volume, the volume knob is not responding. This is fixed by selecting the next track. Nothing special but still annoying. Didn't you encounter the same issue? Btw, any finds on the case?
Greetings! I'm new here. I bought a RUIZU A55, and it came with this same bug. Others mentioned that this bug was fixed in a firmware update but my device says that is up to date and stil has the same problem. Does anyone has a firmware update I could manually install for this or any other recommendation to fix this little issue? Thanks!
 
Jun 26, 2023 at 4:52 PM Post #7,881 of 8,127
Related to the Zisan (new spelling of Zishan!) Z5: GAD, the Zisan-related “higher-end” brand has released a portable, battery-operated, tube/class-A amp. $99 on AliEpress—several stores, search for “ADV amp”:
IMG_1120.jpeg

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It looks like the successor of the AD-III and it is interesting.
  • 3 switchable modes: 3.5 to 3.5 SE, 900mW / 32Ohms; parallel, high power (assume high current), 3.5 to 3.5 SE, 1350mW / 32Ohms; and 4.4 to 4.4 balanced mode, 1620mW / 32Ohms.
  • No feedback class-A, triode vacuum tubes with 30V internal power supply, direct coupling output (no capacitor rolling off the bass).
  • +/-12V internal power supply.
  • 4x elements (18650?) 9600mAh battery.
  • USB-C 5V charging.
  • USB-C 5V power-bank function.
The 2nd picture looks very much like a Tempotec V6 feeding the ADV from the balanced LO.
 

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Jun 28, 2023 at 11:32 AM Post #7,885 of 8,127
Jul 6, 2023 at 9:14 AM Post #7,889 of 8,127
Does anyone have experience with this model, which seems quite promising, not only because of the cable that comes with the headphones, which is worth much more in my opinion, considering the price? It is also said that it is a limited edition of 50 pieces. And I admit that I am very interested to I buy them, but I didn't find any tests anywhere except those 3 ratings on Ali

https://www.aliexpress.com/item/100...4396e3131!12000032530030552!rec!SRB!172357965

Thx in advance.
 

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