Well. both are r2r dacs?
And he certainly clipped the dac1101, just found that his tube thing has 2,8V RMS max out and the 1101 2,0V RMS, so equal output Volume on both means clipping the 1101
That is an unnecessary bad reputation for the soekris dac due to user error, but that kind of user error is going to happen quite a bit, I guess...
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its the nature of the beast not to think things though
i often see and hear about comparisons been made with errors like this or introducing variables between tests
its one of my pet hates
Can't see why a digital volume control should be different than an old fashioned analog one. Anybody have an analog one where full volume is precisely before your power amp clipping, with ANY source material ??
I have plenty of digital material where I need to add a little gain to get full power in my headphones.
If I fixed it a 0 db then I would get complaints about too low volume.
I have plenty of digital material where I need to add a little gain to get full power in my headphones.
If I fixed it a 0 db then I would get complaints about too low volume.
But 0dB seems to be standard in most converters (all that I know, at least) so everybody is used to it...You could implement more gain in the headphone amp, or something like the led goes from green to red after 0dB, but of course it is your product, I just want to help 🙂
Yes, but a power amp just before clipping is probably already much to loud, so it is rarely happening, but a DAC into an Amp with maybe another volume control is different, especially since most modern music productions touch the 0dB border already....
But still, looks like a great product, I am contemplating one for my homestereo, I already have the dam in my studio and I am really happy with it...
A >0dB gain indicator would be better than nothing.
But as also the filters can add additional headroom or introduce clipping, an indicator of actual happening clipping, or something like a level meter, would be more usefull.
A simple and easy do implement solution for the volume dilemma would be a umanager command to set the upper limit on volume control. Something like
set maxvolume = 0 (or -5 or +10 or whatever)
would make a lot of people happy.
set maxvolume = 0 (or -5 or +10 or whatever)
would make a lot of people happy.
May I ask you if there are as well any plans for a BBB-Adapter to your inputboards ? Ideally feeding the masterclock back to the BBb and connecting the clk sel to the DAC ?
That would have been something. I have not found any music material that needs + on the dam volume. Everything distorts
This. Cheers.
One time I accidentally typo'd 44 instead of -44 into uManager, I would have just loved if it went to 0 instead of +10.... still surprised power amp and speaker survived it.
I understand that Soren has already incorporated many of the Mods into the V3 board, but equally has prepared the ground to add some. A few questions:
- Soren, can you provided an update Picture for V3 with the right + and - marking for the cap wholes ?
- I will run my DAC with 10V, so I guess this would be a good cap to add (please advise me on any other Options if you think I could do better) - 12 times: RR71A681MDN1 Nichicon | Mouser
- Which other Mods are considered to be still relevant as well for V3 (clock-cap stacking as an example, Transistor mod for Vref ?) ?
- Those, who are fully modded: Can you give your Prio-List, what made a huge difference to what are nice to haves ?
THX a lot
Frank
- Soren, can you provided an update Picture for V3 with the right + and - marking for the cap wholes ?
- I will run my DAC with 10V, so I guess this would be a good cap to add (please advise me on any other Options if you think I could do better) - 12 times: RR71A681MDN1 Nichicon | Mouser
- Which other Mods are considered to be still relevant as well for V3 (clock-cap stacking as an example, Transistor mod for Vref ?) ?
- Those, who are fully modded: Can you give your Prio-List, what made a huge difference to what are nice to haves ?
THX a lot
Frank
Hi Member friends, I got three Soekris DAC, Two 0,2 and one 0,5% in view to implement with a nanoDigi for make a four or three way crossover. Reading over and faster today I found is possible to make filter inside of the Soekris avoiding the NanoDigi, Somebody can suggest how to implement it? Design of LP band pass and HP filters ?
Best Regards and Thanks in advance.
Best Regards and Thanks in advance.
We have not heard so many statements from V3 owners (preferably one with experience of V1 etc.) about the need for modifications.
Maybe one should taste the food before pouring salt, pepper and ketchup on it? I mean, its polite to at least check out the chefs intentions...
//
You can measure correct polarity, and there is only 4 V, 6,3V caps are fine.
I added to bottom:
I used 680uF, anything between 470-1000 (x12) should be ok (820uF, 1000uF).
Vref already much better on V3, don't except huge improvement,
sound quality seems more detailed, precise and clear...maybe.
I added to bottom:
An externally hosted image should be here but it was not working when we last tested it.
I used 680uF, anything between 470-1000 (x12) should be ok (820uF, 1000uF).
Vref already much better on V3, don't except huge improvement,
sound quality seems more detailed, precise and clear...maybe.
By mistake or by firmware update the volume went to +10 and the dac lost its magic.... above 0db reminds me the digital zoom of cameras...!
Soekris,
I would like to try as well the BBB as a Source due to the reasons Brian and Russel have outlined in their solution with Hermes and Chronus.
Is clk_sel and switchable masterclock output working inthe latest firmware now ? if not, can you please make it work as specified ?
Thx
I would like to try as well the BBB as a Source due to the reasons Brian and Russel have outlined in their solution with Hermes and Chronus.
Is clk_sel and switchable masterclock output working inthe latest firmware now ? if not, can you please make it work as specified ?
Thx
Hi everyone,
after the last months reading through various forums, my plan was to built a reference DAC/Streamer on basis of RPi2, Soekris DAC, hifi power supply (in seperated case) for low costs and without any prefessional equipment (living in an appartment). Goal was to have a reference DAC for 500-600 EUR, that everyone can build w/o any knowledge about electronics.
- Rpi 2 with Volumio 1.55 (I2S to Soekris Dac)
- Toslink input (automatic switch between RPi2)
- Xmos USB input
- 2 x 12V DC ultra linear power supply (for DAC)
- 1 x 5 V / 3A power supply ( for RPi2)
- 2 x Mini ITX alu cases to separate power supply from DAC (2 x Realan w60)
- Integration of serial port to USB
- Power switch and 230v filter
- Wlan n-Draft
- Hardware volume control
All is connected to a selfmade Freenas box.
Sharing of parts list and questions welcome since this is the least I can offer after getting all the information from this forum.
Sound is superb, runing the system directly with 2 Mackie HR824. More to come.
after the last months reading through various forums, my plan was to built a reference DAC/Streamer on basis of RPi2, Soekris DAC, hifi power supply (in seperated case) for low costs and without any prefessional equipment (living in an appartment). Goal was to have a reference DAC for 500-600 EUR, that everyone can build w/o any knowledge about electronics.
- Rpi 2 with Volumio 1.55 (I2S to Soekris Dac)
- Toslink input (automatic switch between RPi2)
- Xmos USB input
- 2 x 12V DC ultra linear power supply (for DAC)
- 1 x 5 V / 3A power supply ( for RPi2)
- 2 x Mini ITX alu cases to separate power supply from DAC (2 x Realan w60)
- Integration of serial port to USB
- Power switch and 230v filter
- Wlan n-Draft
- Hardware volume control
All is connected to a selfmade Freenas box.
Sharing of parts list and questions welcome since this is the least I can offer after getting all the information from this forum.
Sound is superb, runing the system directly with 2 Mackie HR824. More to come.
