Recent content by NeLey169

It seems the problem is the power cord. I bought 2 za3s in 2 different countries, one in China and one in Vietnam. The version I bought in Vietnam has a smaller power cord. The EU Plus instead of US plug and 48v power supply are the same.

My fosi za3 sometimes suddenly turns off while in use, cannot be turned back on for a period of time, have to wait a period of time (several hours) to be able to turn back on, so what is the error? @Fosi Audio

Does the Fosi v3 mono overheat like the reviewers say? I'm afraid it will affect the durability of the amp.

a guy plugged opamp in za3 upside down had the same problem as me

I plugged the opamp buffer in the ZA3 in the wrong direction (because it has the opposite direction to the other opamps and I didn't pay attention to the symbols on the circuit board), so there was no sound. After discovering it and plugging it back in, there was normal sound. But I don't know...

I had to check it myself, and after replacing it I found it was not worth replacing the opamp in the amplifier.

no, i just changed the opamp and heard the noise was louder than the stock opamp, that's it, i tried changing other opamp like v5i-d and the noise was higher than the NE5532.

I changed the opamp of fosi Za3 from NE5532 to OPA1612, strangely the background noise when installing OPA1612 is louder than NE5532. I thought OPA1612 is the opamp with the best parameters and cheap price (I bought 2 pairs for 8$), but the background noise is louder

I tried changing the opamp on the fosi za3 and fosi zd3, they actually have a little difference but it's not significant at all, I found a pair of burson v5i-d opamps for $47, I replaced them for the Fosi zd3, and the stock opamp of the ZD3 is LME49720, I replaced them for the fosi za3.. My...

Very helpful, can you tell me more about 6N 7N 8N copper, i hear audio cable companies advertise quite a lot, thank you.

I see neotech advertises that they are 1 of the 3 manufacturers with the license to produce OCC copper, and their OCC copper cables are very well priced, starting at just $12 a meter like the NEI-3004, and they are from Taiwan instead of China so I have a little more confidence. Is that true ??

i think they build better than the mogami cables that armirm introduced for the same price. with XLR cables should we need 2 cores?

I'm torn between two cables, the NEOTECH NEI-3002 MKIII and the MPS M-12 MKII, they're about the same price, around $65 for a 0.5m pair, and both look really good, both are said to be made from OCC copper, but the Neotech has silver-plated copper strands while the MPS doesn't... Both are OEM...

The seller said 1m is the minimum length sufficient to isolate EMI/RFI interference

I actually only need 0.25m, I thought I would make a pair of 0.5m which would be enough length, but the seller told me to make 1m because 1m will isolate noise better than 0.5m, the seller said the minimum length to isolate noise is 1m so I wondered about this issue.