This is the result, maybe not that handsom anymore, but it works. I can wind up the USB cable with an elastic belt at the back of the case.

@Merlin-PT okay, thanks. I did some measuring and it seems the 4 holes on the PCB that connect the metal casing of the USB port are connected to ground pin 3 on the chip (with the battery still connected). other side: edit: I did a quick test with my stripped USB cable, and the blue led...

@Merlin-PT , thanks! I do see a SS16 Schottky diode and the right leg is connected to the + pin (pin 4). So this is a spot I can attach an extension wire (edit: probably the other side to use this rectifier component). If I can find an easy place for the USB ground wire, I can do this myself. If...

@goodvibes , thanks for the advice. I watched a movie on Youtube for this kind of repair and I think I pass this method by myself. But good to know it is possible, maybe I can find a repair man in my area, if the repair is not too expensive (the Z1 cost me 30 euro way back, too keep things in...

I wrecked the USB port of my Z1. It came loose. The 5 USB lanes are so tiny I cannot repair this myself. And I cannot solder under the USB port with my basic solder tool. I am wondering if I strip the 2 black and red wires that go to the battery in the middle a little bit, I can attach the...

Well my result with the Z1 was, and it had already a Burson V5-i inside for a long time, that a V6 vivid didn't make a change. Not that I am aware off. I am 50 years old and maybe a little deaf already. I did not say the V5-i or V6 sound bad in a Z1, it does sound better than the stock opamp...

And problem solved, I ordered a new battery (with integrated small circuit board on top), with same size and specs, from AE and it works again as it should.

Ha, nice one! I did the same with my DSD, I had to cut the extension wires and make them longer with my amateur solder skills. I have the V6 vivid outside the case too. I use this DSD only in the house, too fragile to walk around with.

hello Forum, my Z3 with ESS DAC won't charge anymore. It still plays music with a charger connected, it shows the wall wart symbol. I haven't use the Z3 for a long time, maybe the battery is dead because of this? The moment I unplug, the Z3 shuts down. I tried other cables and chargers with no...

Z2 came today. I have to say the stock opamp is pretty good. I can´t read the text on the op amp, LM something. But it had to go.... Changed the opamp for the Burson V5-i. I also tried the V6 vivid for a short moment, but I wanted to close the case, the push buttons are a bit wobbly and weak...

The update is I have bought it for 45,- euro with a coupon. So I will see what happens now, and if the stock is real. I will try the Burson V5-i, Muses 02 and Burson V6 Vivid to find out what is the best match for the Z2. Then I still have a nice spare Muses 8920 opamp left, for a future project.

Ah thanks, When the new tax rules were implied, I didn´t bother anymore to buy stuff on AE from then. So I forgot about it. That makes the price a little more attractive.

I found one shop, I wrote it down in my original message but the name was not visible, ony ****. I didn't understand why, but now I know the shop is banned here. I hope it is old stock and not a faulty advertisement. I will think about it a bit longer. Would be nice if Zishan came back with...

This is an old topic, but, I am wondering about something. I have a spare original Muses 02. I see I can buy a Z2 on AE for 50 euro, there seem to be few left. (if it is real, don't know if it is a reputable shop) I like my Z1 with Burson V5i very much. Is has a very up front and intimate...

Yes I can understand. It was a nice experience to ride on the Zishan wave for a while. But the novelty wears off. I did some tinkering with them, and now it is time to move on. I still like and use them as casual portable players, I just grab one, no matter what model or opamp. My step up will...

Better opamp, I think a step up is a quality one instead of the stock opamp. I did some testing, and in the end for me there is not much difference between high quality opamps. I tried Burson V5i and V6vivid, Muses 01, 02, 8920. I think the Zishan players are tresholding or limiting the full...

I did a comparison between DSDs ESS 9038, DSDs CS 43198 , and Z3 with ESS 9038. I changed the opamp, I tried a few different ones, Muses and Burson. I mainly play 24 bit 96 khz flac files, I record them myself, I capture a high quality Tidal stream when playing om my computer. So these are not...

Well I comparedthe Z3 to my DSD's players when I was bussy testing the Burson V6 vivid. https://www.head-fi.org/showcase/burson-audio-supreme-sound-opamp-v6-vivid.22718/reviews#review-26473 My conclusion is that the Z3 with a single DAC sounds a bit flatter than the DSDs with dual DAC. But you...

I did some opamp testing and testing between devices, when I switched between my Z3 with 9038 en my DSD with 9038 (and also my CS 43198 DSD), same song playing simultaneously on both devices, same volume, a hot swap of the headphone. In my ears the DSD has a bit more 3D sound, and a bit more...

Thanks! And yes, I understand, with only opamp rolling you will hit a ceiling pretty soon. The stock DSD will tresshold or throttle the performance of the high end opamps. But I don´t lik to solder that much, and I don´t understand the more advanced modifications of the DSD. Burson offered a V6...

I made extension wires with 8 pins from the bottom of the Burson extension device. I had to take out the pins from the black plastic piece, and cut to pins really short, and solder a wire on top of them. Triple checked everything, and tried it first with an old opamp. Everything is working...

Ok, thanks, interesting pictures. The V6 vivid does sound good, don't know about battery drain yet, looked normal when I tried it yesterday. When I go for a permanent solution to fit the V6 the DSD will be less easy to cary around, but I have two DSD's so I can manage that. I think I will try...

hello guys, I need some help. I've got a Burson V6 from Burson for a test. I also got the extension wires. I've got it working, but I want to put the boards back in the metal casing. The extension wire socket is way to huge. I need to cut and solder the wires flat on the dip 8 socket, and...

I don't think you have a choice, when you want to buy new. After the AK factory fire Zishan switched to CS DAC, and shortly after this, to ES DAC. I think the old models you see on AE en Ebay in reality are not available.