Hi amigos,
Just finished my new Shui Yuan TPA3255 Amplifier. Sounds very very well )
Some pictures so you can compare with my updated Aiyima A04
As per reminder, what I did :
Stock version
A small 110*70*35MM TPA3255 module with :
SAGAMI 7W14A inductors
Full Nichicon caps, as below :
Nichicon 2200UF/63V VZ serie power caps
Nichicon FW serie Buffer caps (Audio Grade)
DIP8 OP amps socket
My minor Updates :
For TPA3255 module : Remove 2X Nichicon VZ serie 2200UF/63V > Install 2X Nichicon 4700UF KW serie (low ESR Audio grade)
For LLC SMPS PSU : Remove Output Caps 2X Nichicon PM serie 50V/1800UF > Install 2X Nichicon 2200UF KW serie
OP amps : Remove NES5532 Op amps > Install OPA1656
Full Setup:
Updated TPA3255 Module with full Nichicon Audio Grade caps (110*70*35MM)
SMPS LLC 600W 48V PSU small factor Nichicon caps (113mm * 67mm * 56mm)
Aiyima A50 AC DC Filter (anti RMI/RFI) board
Full Copper twisted wires
Full Aluminium black case BRZHIFI (131*249*55mm.)
Premium Banana plugs
Pictures :
This looks like a differnet PS to the one you recomended but I beliver it has the same +#V 0 -#V. Would you confirm what terminals you use to connect to the two terminals on the Shui Yuan terminals (2)
Hello, I am a beginner here and need help/advice so that my nc252mp amp is safe to use. I have installed the ncore module in an abs plastic case and followed the instructions from several sites on how to hook up the iec mains, speaker terminals and xlr connectors. With a plastic case is the power earth cable connected to chassis with a screw doing its job? Is this safe? Any replies would be greatly appreciated.
Attachments
The plastic case is not a good idea because the module gets warm and you'll not be able to get any heat transferred to the outside.
Hi, thanks for the reply. I can drill holes in the case. That is not a problem. Is the mains ground needed? Is it doing something connected to the chassis with a screw?
Is the whole case plastic or are the front and back panels metal? If they are, then the safety earth shoul be connected to both.
The front and back panels are 3mm mdf. Should I leave the safety earth connected to the case? Any advantages? Disadvantages?
If the case is metal then you connect the case to GND because that ensures that if a mains-connected part touches it, you trip the house circuit breaker. Otherwise the metal part could be live without anybody realising it (until they touched it).
So if the case is not conductive, there isn't really any requirement to connect it to GND because it's not required for protection. However, if the case is not metal it also isn't thermally conductive as I wrote before, and it doesn't shield the circuit against noise either.
So to be very frank: Will it work? Yes, it will. Is it a good idea? No, absolutely not.
Hi amigos,
Just got my new TPA3255 by HanZao.
This module is pretty unknown so I wanted to test it )
Out of the Box the module comes with the below components :
- 8000uf Rubycon YXF serie Low ESR / 50V
- Buffer caps, Rubycon YXF serie as well
- FIlm caps (MKP) Wurth
- SE Input (using Micro JST connector 2.0)
- DIP 8 OP Amps 5532 (updated with OPA1656)
Need to make a listening test before comparing vs others...
But sounds good at the moment. No Pop sound ON / OFF.
The module is really well protected : Yesterday I was tired and I mounted the power supply in the wrong way and the same for the OP amps... The module has automatically put itself in protection mode.
The Micro JST 2.0 connector is not practical for the SE input but I connected it with a JST 2.54 which is more conventional.
The Finished amp :
- Full alu case
- HanZao TPA3255 module
- 350W LLC PSU / 36V / 9.5A
- OPA1656
- Alps volume pot
- PET Cooper Cables
- AC Filter
Next step : updating Buffer caps.... If I have time )
Just got my new TPA3255 by HanZao.
This module is pretty unknown so I wanted to test it )
Out of the Box the module comes with the below components :
- 8000uf Rubycon YXF serie Low ESR / 50V
- Buffer caps, Rubycon YXF serie as well
- FIlm caps (MKP) Wurth
- SE Input (using Micro JST connector 2.0)
- DIP 8 OP Amps 5532 (updated with OPA1656)
Need to make a listening test before comparing vs others...
But sounds good at the moment. No Pop sound ON / OFF.
The module is really well protected : Yesterday I was tired and I mounted the power supply in the wrong way and the same for the OP amps... The module has automatically put itself in protection mode.
The Micro JST 2.0 connector is not practical for the SE input but I connected it with a JST 2.54 which is more conventional.
The Finished amp :
- Full alu case
- HanZao TPA3255 module
- 350W LLC PSU / 36V / 9.5A
- OPA1656
- Alps volume pot
- PET Cooper Cables
- AC Filter
Next step : updating Buffer caps.... If I have time )
Hi amigos,
New Purifi amp is now ready with the V2 Buffer. Test in progress with OPA1656 + 1692.
New Purifi amp is now ready with the V2 Buffer. Test in progress with OPA1656 + 1692.
This is a photo gallery and so it's not really the place to discuss this important safety topic. I suggest that you start a new thread.
the one witth windows are sanwu tpa 3118 monos and the other one is based on yuan jing tpa 3116 
Guess this is the place to show off my TPA3110 experiments.
Here's a little Bluetooth Boombox. First pic is final cleaned up version. A laptop brick plugs into a jack mounted on the back. Speakers are 4ohm. Were super bright/tinny so used a 1R10ufC low pass wired at the terminals. Sounds really decent, high WAF.
Here's a little Bluetooth Boombox. First pic is final cleaned up version. A laptop brick plugs into a jack mounted on the back. Speakers are 4ohm. Were super bright/tinny so used a 1R10ufC low pass wired at the terminals. Sounds really decent, high WAF.
