Signalyst DSC1

[Raj1]

Sorry, I didn’t know that. I thought I’d seen you mention it somewhere, but its possible I was mistaken.

[nautibuoy]

Originally Posted by Raj1

Sorry, I didn’t know that. I thought I’d seen you mention it somewhere, but its possible I was mistaken.

I've had a couple of AKM DACs before I cleared down a few projects...

[gionag]

Made a simple but effective PSU for the DSC2.

CRC for the reclock (13200uf + 0.5ohm + 13200uf)
CRC for the analog output (13200uf + 0.5ohm + 13200uf)
5v Regulated for BBG (18800u + LM1084-5.0)

works like a charm.

Sound wise, to me, appear to sound as good as other more exotic solution.
so maybe. if someone needs a valid and quick psu this arrangement is worth a shot.

If someone trust me enough on that i can share pcbs or gerber.

[Raj1]

Originally Posted by nautibuoy

I've had a couple of AKM DACs before I cleared down a few projects...

Ahh, ok. I currently have an AK 4497. It’s very transparent in direct DSD mode. I was wondering how it stacks up against other solutions. I guess Ill have to check things out.

[nautibuoy]

Originally Posted by gionag

Made a simple but effective PSU for the DSC2.

Very neat and tidy.

[nautibuoy]

More work to do on my DSC2 build. Plugged it into the main system and was greeted by a loud buzz so some analysis of the grounding is required I think.

Ray

[chientechnical]

What your DC output from direct of R FIR?
I measured on my pcb are 1.65VDC. It's correct?
Tks u.

[gionag]

2.5vdc

[nautibuoy]

Paging ppy!

Hi Pavel, do you have a mechanical drawing of your isolator/reclocker board available? I particularly need to know the position of pin 1 of the output header in relation to pin 1 of the BBB P9 header.

I plan to use one of your isolator/reclocker boards on the input of the delta-sigma Valve DAC project I'm working on so I need to calculate where to drill the holes for the BBB stand-offs relative to the DAC PCB.

Many thanks

Ray

BTW, I'm really please with the results of my DSC2 V2.5.2 and have started exploring the different HQP settings. Chanks for all your work on the development.

[Signalyst]

Originally Posted by Vit123

As far as I remember, the only reason why AK4137 was not used with DSC is the result of subjective uncontrolled listening tests (including mine). It was concluded, that HQP is far better in PCM-DSD conversion.

Have to say, that this is a very controversial conclusion. Must be checked in DBT. Think that I personally became a victim of expectation biasing.

What I've measured couple DACs that use AK4137, it has horribly bad performance. Both high noise floor in audio band plus the noise profile jumps up early. I was expecting much better performance from AKM.