York DSP devices

[Koifarm]

Maybe I mixed some things up.

 

[eclipsevl]

Hard to beat miniDSP PocketADC, plus flexibility of a modular turnkey gizmo can be repurposed later...

This is what I was able to achieve with ES9822:

I made a test board module for ES9822

But this is mostly for measurements purpose, I use Cosmos ADC but really wanted integrated solution: S/PDIF in/out + DAC + ADC. So I assemble such device as prototype:
1. ADC ES9822
2. DAC ES9039 (From Ali, same as @Koifarm uses)
3. The DSP board below with York interfaces as 2 channel in + 2 channel out

 

[eclipsevl]

Maybe I mixed some things up.

I guess, one reason for that there are many different things that I am trying to put together into some organized product line.
But so far it is just many construction pieces of software and hardware

 

[Koifarm]

Also your ADC is very good, I think Cosmos use only one opa1612 at every input channel. Your input is a little different or not?

 

[eclipsevl]

I think Cosmos use only one opa1612 at every input channel. Your input is a little different or not?

Yes. One of the issues with Cosmos ADC - it has quite low input impedance.
So in this one the first stage is OPA1612 as buffers to provide higher input impedance, and then - diff amp OPA1632/1633 as the filter.

 

[Koifarm]

Still better then Minidsp and balanced input.

 

[john61ct]

I made a test board module for ES9822

Envy the DIY skillz.

I wish inexpensive finished OTS products based on that were available in 6 or 8 channels.

But as I stated, within that category, 3x PocketADC is hard to beat.

 

[Mark185]

Envy the DIY skillz.

I wish inexpensive finished OTS products based on that were available in 6 or 8 channels.

But as I stated, within that category, 3x PocketADC is hard to beat.

What eclipsevl is doing is on another level entirely from the PocketADC and of great interest to a fairly wide following. He also posts this on diyAudio and I follow his work with great admiration. I already have his York USB interface and just purchased the DSP board to begin experimenting with active speaker design using FIR filters which the lesser Analog Devices chips can't do. I find the only way to truly learn how to use products like this are to jump in and start doing and make mistakes. It is how I finally got comfortable with Sigma Studio. I started with ADAU1701 DSP boards and am stepping up to the ADAU1466 to tackle more advanced designs. I honestly do not think it is possible to make and sell an all-in-one device like you seem to want at the prices eclipsevl charges. If you want inexpensive finished OTS product, look at the Down4Sound EZDSP68+. It has decent noise and distortion specs and the PC configuration software can handle active crossovers and parametric EQ. I own one and at $269, it is hard to beat.