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DAC-END 24 (AD1865 NOS DAC )

Finally finished my DAC END 24, sounds fantastic now I can hear more details, very pleased with results. at begining I had hum issues, then I check all my wiring again, but no sucsess. hum issues I had on DAC pcb solderred ballanced input connector, one of two holding screw holes gas ground connection. Is there anyone else had same issues? thank you.
 

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Finally finished my DAC END 24, sounds fantastic now I can hear more details, very pleased with results. at begining I had hum issues, then I check all my wiring again, but no sucsess. hum issues I had on DAC pcb solderred ballanced input connector, one of two holding screw holes gas ground connection. Is there anyone else had same issues? thank you.

it is very nice!

What your hum??
thanks
 
Happy new year!! output pcb board is marked where is left and right channels, however it doesn’t match with quanghao’s dac end 24 assembled unit. is there any mistakes during pcb print? pictures attached
 

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Hi Quanghao and Andrea,
I'm interested in assembling one of these kits.

I have assembled several audio projects before, both from PCB/kit and point-to-point soldering, but I'm a complete newbie when it comes to DACs, so I have a few questions:

1. I want to connect the DAC input to a Raspberry Pi via GPIO, and the output to my power amp. I assume I will need theDAC board, power supply, and output stage. Anything else?
2. I can find only AD1865N-J chips for sale. Your project refers to AD1865N-K. Does the -J model work the same?
3. What is the current price for the DAC + power supply + tube stage kits including shipping to the USA?
4. Do you have an included/excluded part list?
5. What do I need the Amanero module for? Is it a separate board that I have to buy elsewhere?

You can PM me for more price/payment details.

Thank you.
gm
 
I think I found answers to most of my questions in the DAC END 2 page, that has complete schematics. I see a mention that it should work with AD1865N, AD1865N-J and AD1865N-K, so I got a couple of N-J from Ebay to play with.

I am still wondering if at least the schematics are available for DAC END 24, if you are out of PCBs I can attempt to build this on blank boards. Also, any hints on how to connect the Pi's GPIO and which driver to use?