I wish Soren would release what firmware he has so we can test with, the input selection bug is annoying the heck out of me.
I would have expected some sort of fix for that by now. Its been months, one would think that getting all of the ongoing issues fixable by firmware resolved would spark more interest in your product.. shows dedication to the product as well. I also think Soren should send spzzzzkt a free board or two for all the hard work and dedication hes put into the filters.
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If you are carefull the turn on/off pop its not a big deal, but right now seeking in a track, forward o backward in the playlist cause a pop, sometimes it's small other it's huge... I test this with a raspberry pi running volumio and a banana pi pro (with both i2s out and spdif out) running a custom debian image...
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You should read all my posts more carefully. I thought it was pretty clear when a reply is ironic.
I listened to the TDA1541A thousands of hours. See my posts, I own a Naim Audio CD3.
@ristar, @Marek,
you are right, better I leave the discussion.
Good idea. I think everyone is heartily sick of your trolling.
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I appreciate Andrea's comments. People should just skip over his comments if they do not want to read them. If they are off topic then maybe Soekris can step in?
I just put the parts together temporarily in aluminum case.
When I set the volume over V+01, I can hear some noisy sound such as crushed and squashed.
If the volume is set to below V+00, I can’t hear any noise.
What do you think about this noise? Is it only my case?
My setup is Synology NAS -> Combo384 -> DAM1021 -> Integrated AMP -> SPK.
Filter: TotalCRaP v2
FPGA F/W: ver. 0.9.
When I set the volume over V+01, I can hear some noisy sound such as crushed and squashed.
If the volume is set to below V+00, I can’t hear any noise.
What do you think about this noise? Is it only my case?
My setup is Synology NAS -> Combo384 -> DAM1021 -> Integrated AMP -> SPK.
Filter: TotalCRaP v2
FPGA F/W: ver. 0.9.
I am not sure that this is an issue of the DAM1021... I basically have no clicks/pops at all during sample rate change
(Foobar --> DIYINHK USB/I2S converter --> DAM1021) while I did have those clicks/pops with my previous setup (Foobar --> WaveIO SPDIF --> Subbu DAC).
Still annoying is that approx. 2 seconds of music get swallowed at times after sample rate change.
Soren mentioned previously that he is able to both reduce the amount of time taken to relock as well as reducing (removing?) the pops for other inputs other than the DIYINHK adapter. I would be disappointed if that's falling out of the firmware update because it can sometimes be very loud depending on what music data is in the start of the tracks (i.e. if the track starts loud that pop is very loud)
I do wish also that we had a timeline on when the next firmware update is due to be released.
Just a not for those of you using a usb-serial adapter with ftdi chip. Beware if buying cheap "knock off" from ebay, allied express or something. They might be fake and this could cause some problems.
https://www.youtube.com/watch?v=eU66as4Bbds
In short. The video is about counterfeit ftdi chips. Skip to 10:30 to se what can happen using a windows machine.
https://www.youtube.com/watch?v=eU66as4Bbds
In short. The video is about counterfeit ftdi chips. Skip to 10:30 to se what can happen using a windows machine.
Maybe I have missed something but one would think since this forum is in a designated commercial area and the point of it is making this device work as best it can for those who are considering buying and more importantly for those who have.
I cannot understand the folks who have no intention of buying the thing and/or who have not heard it going into arcane discussions concerning its design choices.
It should be obvious SOEKRIS is not a professor and has no intention and certainly not the time to go into detailed discussion of how he approaches the design of a DAC.
He has gone into far more detail than most. And one needs to consider he has good reasons to not reveal all.
BUT I think the most amusing of all the complaints is from someone who displays a picture of ancient single ended triodes and fretting over the measurements of the DAC when it is obvious that R2R Dacs are somewhat analogous to the SET in that they both produce a pleasing sound IN SPITE of their measurements.
There is something to audio reproduction beyond static measurements. It is what both devices can do in a dynamic situation (also known as music) that make them interesting to us.
Sure am glad I have more things to do than make posts on forums I have no real interest in.
I cannot understand the folks who have no intention of buying the thing and/or who have not heard it going into arcane discussions concerning its design choices.
It should be obvious SOEKRIS is not a professor and has no intention and certainly not the time to go into detailed discussion of how he approaches the design of a DAC.
He has gone into far more detail than most. And one needs to consider he has good reasons to not reveal all.
BUT I think the most amusing of all the complaints is from someone who displays a picture of ancient single ended triodes and fretting over the measurements of the DAC when it is obvious that R2R Dacs are somewhat analogous to the SET in that they both produce a pleasing sound IN SPITE of their measurements.
There is something to audio reproduction beyond static measurements. It is what both devices can do in a dynamic situation (also known as music) that make them interesting to us.
Sure am glad I have more things to do than make posts on forums I have no real interest in.
I just put the parts together temporarily in aluminum case.
When I set the volume over V+01, I can hear some noisy sound such as crushed and squashed.
If the volume is set to below V+00, I can’t hear any noise.
What do you think about this noise? Is it only my case?
My setup is Synology NAS -> Combo384 -> DAM1021 -> Integrated AMP -> SPK.
Filter: TotalCRaP v2
FPGA F/W: ver. 0.9.
View attachment 477907
View attachment 477908
View attachment 477909
How do you get those nice cut outs on the back panel? My DIY effort has always looked bad.
Thanks,
Looks nicely CNC cut with some anodizing. Take the backplate to a machine shop with cutout measurements in-hand.
Another alternative is Front Panel Express: Front Panel Design Software and CAD Conversion Service: Home in the US or Schaeffer AG: Home in Europe. They offer free software which makes it pretty simple to design panels/enclosures for CNC cutting through their companies.
I would call them DHT rather than SET, that's a circuit topology.
Have you any idea about the measurements of these tubes?
Please, take a look at the plate characteristics, do you know any modern device with such that linearity (that's a measurement, not a subjective impression)?
Sometimes measurement means music.
Or we should revise the meaning of the word "measurement".
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