This thread is to initialize a new board and finished DAC based on a prototype build from base board from DIYINHK , idea behind is to get best quality and performance based on XMOS, AKM and NDK product.
My prototype based on AK4490 and XMOS isolated from diyinhk build my motivation to build first a dual mono AK4490 with ultra low noise supply and low jitter clock to reach the best performance of this nice and powerfull DAC chip interfaced with the XMOS Xcore-200 to have enought control and power (MIPS) to cover the need to reach the PCM 32bits 768khz and DSD 256 (native or DoP). Then an other board based on the new AK4497 when i get sample in February before mass production of this chip between April and May 2016 (seems to be officaly for summer 2016).
Some SPEC
For AK4490 32bit Stereo DAC:
S/N : 123db (in mono mode)
THD+N : -112db
PCM: up to 768khz
DSD: up to DSD256
For AK4497 32bit Stereo DAC
S/N : 131db (in mono mode)
THD+N : -116db
PCM: up to 768khz
DSD: up to DSD512
For oscillator part i select NDK but we will see if better solution could be proposed from our Diyer there.
I have already asked NDK for getting sample from the new Duculon product but first is this to expensive (arround 1600€ pcs) could be used only for public where a high end product for this type of over killed quality and price as no impact
(DAC cost could be estimate arround 6K€)
Let go first to the first step the optimal choice in a reasonable price.
Before building a new PCB i will create with you the prototype by using DIYINHK product , we will proceed on some fine tuning and customization to get our target runing and be distributed or self builded.
After we will search a good way to build a nice litle PCB for and his boxed version.
Then one other PCB for the Premium last new AK4497 with his very good performance and quality.
This thread is to exchange experience and build a DAC together on a reasonable and performance way, and is not a commercial activities. I will give you the current state of my current experiences what is already done, what is currently in task list and what is to be planned.
When you have any question please ask me now on this thread before i begin any step to get it working (i tell you the current sound going out is amazing)
Enjoy to exchange your experience into this thread , thanks in advance all for your input
Cal1sto
My prototype based on AK4490 and XMOS isolated from diyinhk build my motivation to build first a dual mono AK4490 with ultra low noise supply and low jitter clock to reach the best performance of this nice and powerfull DAC chip interfaced with the XMOS Xcore-200 to have enought control and power (MIPS) to cover the need to reach the PCM 32bits 768khz and DSD 256 (native or DoP). Then an other board based on the new AK4497 when i get sample in February before mass production of this chip between April and May 2016 (seems to be officaly for summer 2016).
Some SPEC
For AK4490 32bit Stereo DAC:
S/N : 123db (in mono mode)
THD+N : -112db
PCM: up to 768khz
DSD: up to DSD256
For AK4497 32bit Stereo DAC
S/N : 131db (in mono mode)
THD+N : -116db
PCM: up to 768khz
DSD: up to DSD512
For oscillator part i select NDK but we will see if better solution could be proposed from our Diyer there.
I have already asked NDK for getting sample from the new Duculon product but first is this to expensive (arround 1600€ pcs) could be used only for public where a high end product for this type of over killed quality and price as no impact
Let go first to the first step the optimal choice in a reasonable price.
Before building a new PCB i will create with you the prototype by using DIYINHK product , we will proceed on some fine tuning and customization to get our target runing and be distributed or self builded.
After we will search a good way to build a nice litle PCB for and his boxed version.
Then one other PCB for the Premium last new AK4497 with his very good performance and quality.
This thread is to exchange experience and build a DAC together on a reasonable and performance way, and is not a commercial activities. I will give you the current state of my current experiences what is already done, what is currently in task list and what is to be planned.
When you have any question please ask me now on this thread before i begin any step to get it working (i tell you the current sound going out is amazing)
Enjoy to exchange your experience into this thread , thanks in advance all for your input
Cal1sto
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